Questlon 23 of 30
What is the term for a large group of people with similar characteristics such
as educational background and income level?
A. An interest group
B. A social class
C. A social culture
O D. A political party
SUBMIT

Answers

Answer 1
a social culture i believe

Related Questions

what element has greatest atomic radius from group 3?

Answers

Answer:

i think iron

Explanation:

i not sure with my ans

Is mass based on gravity. True or false

Answers

Answer:

true mass is based on gravity

Answer:

true

Explanation:

mass based on gravity

Magnesium and Copper Sulfate react to form Magnesium Sulfate and Copper in the following equation.
Mg + CuSO4 -> MgSO4 + Cu

Answers

Answer:

B: Single Displacement Reaction

Explanation:

A single replacement reaction, sometimes called a single displacement reaction, is a reaction in which one element is substituted for another element in a compound.

A + BX -> B + AX

For example:

Cation Replacement

Zn + CuCl2 -> ZnCl2 + Cu

Anion Replacement

Br2 + 2Ki -> 2KBr + I2

You just switch either the cation with another anion or switch an anion with another cation.

Hope it helped!

A sodium bromide solution is added to a beaker containing aqueous chlorine. What would happen?
A) Write the complete chemical equation
B) Write the dissociated ionic equation
C) Write the net ionic equation
D) List any spectator ions

Answers

Answer:

See detailed explanation.

Explanation:

Hello!

In this case, for the described chemical reaction, we can proceed as follows:

A) For the complete chemical reaction we note down every reacted and produced species as well as the proper balancing process:

[tex]2NaBr(aq)+Cl_2(aq)\rightarrow 2NaCl(aq)+Br_2(g)[/tex]

In which gaseous bromine may give off.

B) The dissociated ionic equation requires the ionization of the aqueous species in ions, expect for chlorine which is not ionized:

[tex]2Na^+(aq)+2Br^-(aq)+Cl_2(aq)\rightarrow 2Na^+(aq)+2Cl^-(aq)+Br_2(g)[/tex]

C) For the net ionic equation we cancel out the sodium ions as they are at both reactants and products:

[tex]2Br^-(aq)+Cl_2(aq)\rightarrow +2Cl^-(aq)+Br_2(g)[/tex]

D) Based on C) we infer that the spectator ions here are the sodium ions.

Best regards!

How can scientific themes apply to many branches of science?
A. All types of scientists have agreed on them.
B. The different branches of science are connected.
C. Different themes exist for the different branches.
O D. The themes are all based on the same basic units.

Answers

Answer:

b) different branches of science are connected

Answer:

b

Explanation:

a p e x :)

A(n)_________contains only one type of atom, whereas a(n)_________ is composed of two or more different elements bonded together. A(n)___________ also contains more than one substance, but these can be separated by physical means, whereas the components of a compound cannot.

Answers

Answer:

1. Element

2. Compound

3. Mixture

Explanation:

Elements and compounds are both pure substances. ELEMENTS are substances that contain only one type of atom. For example, Cl2 contains only chlorine atoms. COMPOUNDS, on the other hand, contain atoms of two or more elements that are chemically joined together. For example, CaCl2 contains atoms of calcium and chlorine.

MIXTURES are another kind of substances that contains more than one substances, however, unlike compounds, they are not chemically joined. Mixtures can easily be separated by physical means.

What is molality mean

Answers

Answer:

Molality (m), or molal concentration, is the amount of a substance dissolved in a certain mass of solvent. It is defined as the moles of a solute per kilograms of a solvent.

Explanation:

Look in Dictionary

How fast do electromagnetic waves travel? *
A the speed of sound
It depends on how fast the magnet in the generator that produces them is moving
At the speed of light
It depends on how many amps you pass through the coiled wire in the generator that
produces them.

Answers

answer : speed of light

A compound is found to contain 7.962 % silicon , 20.10 % chlorine , and 71.94 % iodine by mass.

a. The empirical formula for this compound is_______ .
b. The molar mass for this compound is 352.8 g/mol. The molecular formula for this compound is:_____

Answers

Answer:

A. Empirical formula => SiCl₂I₂

B. Molecular formula = SiCl₂I₂

Explanation:

From the question given above, the following data were:

Silicone (Si) = 7.962 %

Chlorine (Cl) = 20.10 %

Iodine (I) = 71.94 %

Molar mass of compound = 352.8 g/mol

Empirical formula =?

Molecular formula =?

A. Determination of the empirical formula of the compound.

Si = 7.962 %

Cl = 20.10 %

I = 71.94 %

Divide by their molar mass

Si = 7.962 / 28 = 0.284

Cl = 20.10 / 35.5 = 0.566

I = 71.94 / 127 = 0.566

Divide by the smallest

Si = 0.284 / 0.284 = 1

Cl = 0.566 / 0.284 = 2

I = 0.566 / 0.284 = 2

Empirical formula => SiCl₂I₂

B. Determination of the molecular formula of the compound.

Empirical formula => SiCl₂I₂

Molar mass of compound = 352.8 g/mol

Molecular formula =?

Molecular formula = [SiCl₂I₂]ₙ

[SiCl₂I₂]ₙ = 352.8

[28 + (2×35.5) + (2×127)]n = 352.8

[28 + 71 + 254]n = 352.8

353n = 352.8

Divide both side by 353

n = 352.8 / 353

n = 1

Molecular formula = [SiCl₂I₂]ₙ

Molecular formula = [SiCl₂I₂]₁

Molecular formula = SiCl₂I₂

HELPPPPPPPPPPPPPPPPPP

Answers

Answer:

*helps and doesnt get deleted*

Explanation:

The following chemical reaction takes place in aqueous solution:
AgF(aq)+Nal(aq) ——> Agl(s)+NaF(aq)
Write the net ionic equation for this reaction.

Answers

The net ionic equation : Ag⁺(aq)+l⁻(aq) ⇒ Agl(s)

Further explanation

Given

Reaction

AgF(aq)+Nal(aq) ——> Agl(s)+NaF(aq)

Required

The net ionic equation

Solution

The equation of a chemical reaction can be expressed in the equation of the ions

In the ion equation, there is a spectator ion that is the ion that does not react because it is present before and after the reaction  

When these ions are removed, the ionic equation is called the net ionic equation  

AgF(aq)+Nal(aq) ——> Agl(s)+NaF(aq)

Ag⁺(aq)+F⁻(aq)+Na⁺(aq)+l⁻(aq) ⇒ Agl(s)+Na⁺(aq) + F⁻(aq)

Ag⁺(aq)+l⁻(aq) ⇒ Agl(s)

According to the following reaction, how many moles of phosphorus trichloride will be formed upon the complete reaction of 25.4 grams of phosphorus (P_4) with excess chlorine gas?
phosphorus (P_4) (s) - chlorine (g) --> phosphorus trichloride (l)
.....moles phosphorus trichloride

Answers

Answer:

0.82 mole of PCl₃

Explanation:

We'll begin by calculating the number of mole in 25.4 g of P₄. This can be obtained as follow:

Mass of P₄ = 25.4 g

Molar mass of P₄ = 4 × 31 = 124 g/mol

Mole of P₄ =?

Mole = mass / Molar mass

Mole of P₄ = 25.4 / 124

Mole of P₄ = 0.205 mole

Next, the balanced equation for the reaction. This is illustrated below:

P₄ + 6Cl₂ —> 4PCl₃

From the balanced equation above,

1 mole of P₄ reacted to produce 4 moles of PCl₃

Finally, we shall determine the number of mole of phosphorus trichloride, PCl₃, produced by the reaction of 25.4 g (i.e 0.205 mole) of P₄. This can be obtained as follow:

From the balanced equation above,

1 mole of P₄ reacted to produce 4 moles of PCl₃.

Therefore, 0.205 mole of P₄ will react to produce = 0.205 × 4 = 0.82 mole of PCl₃

Thus, 0.82 mole of PCl₃ was obtained from the reaction.

what does the ideal gas law describe​

Answers

Answer:  the law that the product of the pressure and the volume of one gram molecule of an ideal gas is equal to the product of the absolute temperature of the gas and the universal gas constant.An ideal gas is a gas that conforms, in physical behaviour, to a particular, idealized relation between pressure, volume, and temperature called the ideal gas law

how do you think you can use lenses and mirrors to change the direction and intensity of a light wave?

Answers

The light goes to the left and dried ion

An idea based on observations with no experimental evidence is a:

Answers

A Hypothesis.

I Hope This Helps! (^_^)

Is sodium hydroxide an alkali or an insoluble base

Answers

Sodium Hydroxide is an alkali

What is made when a salt is dissolved in water?
A) a precipitate
B) a compound
C) a solution
D) a mixture

Answers

C a solution because salt is a solute

Answer:

D.Mixture

Explanation:

When Salt dissolves in water a homogeneous mixture is formed, because the different components are mixed evenly within the substance.

What is true about atomic radius trends on the periodic table?
A. Atomic radius decreases along periods and decreases down groups.
B. Atomic radius decreases along periods and increases down groups.
C. Atomic radius increases along periods and decreases down groups.
D. Atomic radius increases along periods and increases down groups.
It is not b

Answers

Answer:

D

Explanation:

Just took the test, Hope this helps!

Answer:

B. Atomic radius decreases along periods and increases down groups.

Explanation:

It decreases in period because of addition of proton effective nuclear charge increase and atomic radius decreases.

Atomic radius increases in group because of addition of shells

Which of the following does NOT determine local weather patterns?

Answers

Answer:

do you have a picture of the choices?

Classify each of the observed changes according to whether or not they are likely to represent evidence that a chemical reaction is occurring when performing an experiment.
May be evidence of a chemical reaction Not evidence of a chemical reaction
a solution color becoming less intense
due to dilution
bubbles (sas formation) changes in color
precipitation
explosion or fire
Answer Bank
a solid liquifying change in temperature solution colors mixing

Answers

Answer:

a solution color becoming less intense  due to dilution- is not an evidence of a chemical reaction

bubbles (gas formation) - evidence of a chemical reaction

explosion or fire - evidence of a chemical reaction

changes in color- evidence of a chemical reaction

precipitation- evidence of a chemical reaction

changes in temperature - evidence of a chemical reaction

a solid liquifying - is not an evidence of a chemical reaction

solution colors mixing - is not an evidence of a chemical reaction

Explanation:

A chemical change is not easily reversible and yields new substances. It is often accompanied by a loss or gain of heat.

In the answer section, i have shown some evidences that lead us to conclude that a chemical reaction has taken place. The occurrence of a chemical change often goes with the formation of new substances as earlier stated and any of these signs may accompany the process.

For instance, when a metal is dropped in dilute acid solution, bubble of hydrogen gas indicates that a chemical reaction has taken place.

WILL GIVE BRAINLIEST

Answers

Answer:

1. True

2. resting position

3. 5 cm

4. Compressions

5. false

6. 7 m

7. true

8. second one has more amplitude

9. True

10. true

Explanation:

All the iron in a 2.000 g tablet was dissolved in an acidic solution and converted to Fe2+. This was then titrated with KMnO4. The titration required 27.50 cm3 of 0.100 mol dm-3 KMnO4. Calculate the total mass of iron in the tablet and its percentage by mass.

Answers

Answer:

0.768g of Fe are in the tablet = 38.4% by mass of Fe in the tablet

Explanation:

The balanced redox equation of Fe²⁺ with KMnO₄ in acidic medium is:

5Fe²⁺ + MnO₄⁻ + 8H⁺ → 5Fe³⁺ + Mn²⁺ + 4H₂O

Where 5 moles of Fe²⁺ react per mole of KMnO₄

The moles required of KMnO₄ are:

27.50cm³ * (1dm³ / 1000cm³) = 0.0275dm³ * (0.100mol / dm³) = 0.00275mol KMnO₄

Moles of Fe²⁺ are:

0.00275mol KMnO₄ * (5 moles Fe²⁺ / 1mol KMnO₄) = 0.01375moles of Fe²⁺

In grams (Molar mass Fe: 55.845g/mol):

0.01375moles of Fe²⁺ * (55.845g/mol) =

0.768g of Fe are in the tablet

And percentage is:

0.768g Fe / 2.000g * 100 =

38.4% by mass of Fe in the tablet

any two substances which are odourless​

Answers

Answer:

This question perplexes me somewhat. If we as humans are not able to detect a scent or odor from certain substances, that does not of necessity mean those substances are not giving off an odor, and are therefore not “truly” odorless, just odorless to the less sensitive noses of humans.

Water is supposedly odorless, but I know quite well of a test where subjects did a blind tasting, only instead of wine these people were tasting Australian waters, sourced from different locations around the country.

All of these tasters (professionals) were able to differentiate the waters and from what I recall, were all accurate. These wine buffs use their palates as well as their taste-buds, so, were there no odor, their task would have had a greater degree of difficulty.

My own baby sister has such a sensitive palate that she can tell you if you serve her a glass of water from the fridge whether that water was fresh, straight from the tap (unfiltered), filtered or had been boiled before and whether it had been boiled for more than five minutes or not. Truly.

So I would find it difficult to answer your question, “What substances are truly odorless?” , because I am not sure of the criteria you mean by “truly” odorless. In other words, If you are talking about zero degrees, are you talking of the freezing point of water, absolute zero or zero degrees Kelvin?

I’m sure there are substances that are odorless, to humans, but are those same substances “truly” odorless, or only to our perception of them?

Hope this helps, have a wonderful day/night, and stay safe!

Pressure is often defined as​

Answers

Answer:

Pressure is often defined as a measure of force applied on an area, or over a unit area.

Explanation:

Trey was asked to build a working model of a landform for a science project. He chose to build a model of a volcano.
Trey formed a base out of clay and then painted the model so it resembled a cinder cone volcano.
Finally, Trey mixed baking soda, vinegar, and red food coloring in the base, so it mimicked lava flowing out of the volcano. Once
he was finished with his project, Trey's teacher asked how useful his model was.
What factor best determines the usefulness of the model?
A. how closely the model's color matches the real world
how closely the model's behavior matches the real world
C. how closely the model's size matches the real world
how closely the model's composition matches the real world
B.
D.

Answers

Can you please give me more details so I can help you

Answer:

The answer is "how closely the model's behavior matches the real world "

Explanation:

Your options were glitched out, so it only showed A and C, and B and D were blank so lol

How many moles are in 25.58 grams of H20?

Answers

Explanation:

1.42 Moles are there

What is the relationship between the mass of the boat and the mass of the displaced
liquid?

Answers

Answer: The mass of the displaced liquid is equal to the volume of the liquid multiplied by its density. When a boat is placed in water, the volume of displaced water is equal to the mass of the boat.

I hope this helped!

The mass of the boat is equal to the mass of the liquid which is displaced by placing the boat in the liquid.

What is Archimedes' Principle?

Archimedes' Principle states that the buoyant force of the object is equal to the weight of the water which is displaced by the boat. If the weight of the water that is displaced by the boat is less than that of the weight of the boat, then in this case the boat sinks. Archimedes' principle or the buoyant force is very useful for the calculation of the volume of an object that does not have a regular shape.

The mass of the displaced liquid is always equal to the volume of the liquid multiplied by the density of the fluid. When a boat is placed in the water, the volume of displaced water is equal to the mass of the boat which is placed in it.

Learn more about Displacement here:

https://brainly.com/question/11934397


#SPJ2

What is the frequency of a photon that has a wavelength of 6.58 x 10-8m?

Answers

Answer:

6 x 10 (power to the 15) H2

Answer:

i dont know the answer but you could search up photon calculator, hope this helps (im very sorry i couldnt help but i havent learned about that yet, im in 9th grade)

C3H8 + 5 O2 → 3 CO2 + 4 H2O

How many grams of oxygen does it take to produce 90.6 grams of Carbon Dioxide​

Answers

Answer:

Mass = 112 g

Explanation:

Given data:

Mass of CO₂ produced = 90.6 g

Mass of oxygen needed = ?

Solution:

Chemical equation:

C₃H₈ + 5O₂       →      3CO₂+ 4H₂O

Number of moles of CO₂:

Number of moles = 90.6 g/ 44 g/mol

Number of moles = 2.1 mol

Now we will compare the moles of  CO₂ and oxygen:

                 CO₂           :           O₂

                    3             :            5

                    2.1           :        5/3×2.1 = 3.5

Mass of oxygen needed:

Mass = number of moles × molar mass

Mass = 3.5 mol × 32 g/mol

Mass = 112 g

Sns
Station 5
Find the formula for the following
compounds:
Chromium (II) Oxide
Chromium (III) Oxide
Lead (II) Phosphide
Mercury (0) Sulfide
Manganese (11) Nitride

Answers

lead mercury cenus eathr
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Solve for x, pleaseee helppp, I will mark you as a brainliest! PLEASE ANSWER THIS QUESTION FOR ME I WILL GIVE YOU BRAINLEST PLZ A humpback whale is classified as a mammal while a basking shark is a fish. Which taxonomy classification are the same for a humpback whale and a basking shark which speaker would jean-jacque rousseau most likely agree with Help Me Please I will give brainliest if correct! Pls help, if u finish this then go on comment then ill give u like probs 100 pts or som tyonly answrr i d u know the answerfrom U.S. Army Center of Military History) In late 1944, during the wake of the Allied forces successful D-Day invasion of Normandy, France, it seemed as if the Second World War was all but over. On Dec. 16, with the onset of winter, the German army launched a counteroffensive that was intended to cut through the Allied forces in a manner that would turn the tide of the war in Hitlers favor. The battle that ensued is known historically as the Battle of the Bulge. The courage and fortitude of the American Soldier was tested against great adversity. Nevertheless, the quality of his response ultimately meant the victory of freedom over tyranny.Early on the misty winter morning of Dec. 16, 1944, more than 200,000 German troops and nearly 1,000 tanks launched Adolf Hitlers last bid to reverse the ebb in his fortunes that had begun when Allied troops landed in France on D-Day. Seeking to drive to the coast of the English Channel and split the Allied armies as they had done in May 1940, the Germans struck in the Ardennes Forest, a 75-mile stretch of the front characterized by dense woods and few roads, held by four inexperienced and battle-worn American divisions stationed there for rest and seasoning.After a day of hard fighting, the Germans broke through the American front, surrounding most of an infantry division, seizing key crossroads, and advancing their spearheads toward the Meuse River, creating the projection that gave the battle its name.Stories spread of the massacre of Soldiers and civilians at Malmedy and Stavelot, of paratroopers dropping behind the lines, and of English-speaking German soldiers, disguised as Americans, capturing critical bridges, cutting communications lines, and spreading rumors. For those who had lived through 1940, the picture was all too familiar. Belgian townspeople put away their Allied flags and brought out their swastikas. Police in Paris enforced an all-night curfew. British veterans waited nervously to see how the Americans would react to a full-scale German offensive, and British generals quietly acted to safeguard the Meuse Rivers crossings. Even American civilians, who had thought final victory was near were sobered by the Nazi onslaught.But this was not 1940. The supreme Allied commander, Gen. Dwight D. Eisenhower rushed reinforcements to hold the shoulders of the German penetration. Within days, Lt. Gen. George S. Patton Jr. had turned his Third U.S. Army to the north and was counterattacking against the German flank.But the story of the Battle of the Bulge is above all the story of American Soldiers. Often isolated and unaware of the overall picture, they did their part to slow the Nazi advance, whether by delaying armored spearheads with obstinate defenses of vital crossroads, moving or burning critical gasoline stocks to keep them from the fuel-hungry German tanks, or coming up with questions on arcane Americana to stump possible Nazi infiltrators.At the critical road junctions of St. Vith and Bastogne, American tankers and paratroopers fought off repeated attacks, and when the acting commander of the 101st Airborne Division in Bastogne was summoned by his German adversary to surrender, he simply responded, Nuts!Within days, Pattons Third Army had relieved Bastogne, and to the north, the 2nd U.S. Armored Division stopped enemy tanks short of the Meuse River on Christmas. 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