I need help with this question please asap I would really appreciate it

I Need Help With This Question Please Asap I Would Really Appreciate It

Answers

Answer 1

Answer:

I think c

Explanation:


Related Questions

30 points if you tell me your favorite food! ☺️

Answers

Answer:

Pizza, salad, tacos, burgers, etc.

Explanation:

:D

Which body system includes the lungs?m​

Answers

Answer: The respiratory system

Explanation: It includes the nose, mouth, throat, voice box, windpipe, and lungs. Air enters the respiratory system through the nose or the mouth.

just help frllllllllllllllllllllllllllllllllllll

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Answer: 2 The Proximity toward the ocean

Explanation:

May i plz have brainiest  

What three sedimentary rocks form from chemical precipitates and evaporites?

Answers

Answer: Rocks formed in this way include halite, gypsum, anhydrite, and some limestones. Layers of precipitated rocks are called evaporite deposits because they typically form where evaporation is high in arid regions like the desert southwest and in the eastern Mediterranean.

Explanation:

The three sedimentary rocks form from chemical precipitates and evaporites are halite, gypsum and anhydrite.

What are sedimentary rocks?

Pre-existing rocks or bits of once-living animals constitute sedimentary rocks. They are formed by the accumulation of sediments on the Earth's surface.

Halite, gypsum, anhydrite, and various limestones are examples of such rocks. Evaporite deposits are layers of precipitated rocks that occur in arid locations like the desert southwest and the eastern Mediterranean where evaporation is considerable.

Hence three sedimentary rocks are Halite, gypsum and anhydrite.

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What happens to pressure if temperature increases? Pressure increases. Pressure stays the same. Pressure decreases. Temperature has no effect on pressure.

Answers

Answer:

Pressure increases

Explanation:

According to Gay-Lussac's law, the pressure of a given amount of gas is directly proportional to the temperature at a given volume i.e.

[tex]P\propto T[/tex]

It means the relationship between the pressure and the temperature is direct.

If the temperature increases, the pressure of the gas also increases. Hence, the correct option is (A).

What can be concluded from the following statements about a property of metats? • Acast-iron skillet on a stove is used to try bacon • A metal spoon left in a pot of soup heating on a stove is too hot to touch - An aluminum playground slide gets hot on a summer day. O A Metals combine with nonmetals.O B. Metals are good insulators. O C Metals conduct electricity D Metals conduct heat.​

Answers

Answer:

D - metals conduct heat

Generally, when food is cooked:
choose all that apply

The food absorbs energy.

An exothermic reaction takes place in the food.

An endothermic reaction takes place in the food.

Answers

Answer:

An exothermic reaction takes place in the food

Based on the methods used in the video, answer the following gram to gram conversion question:



2 C2H6 + 7 O2 --------> 4 CO2 + 6 H2O



In the combustion of ethane (C2H6), 4.12 grams of water (H2O) was produced. How much ethane (C2H6), in grams, was used in this reaction?



molar mass H2O= 18.02 g/mol

molar mass C2H6= 30.08 g/mol



2.47 g C2H6


2.29 g C2H6


20.63 g C2H6


20.97 g C2H6

Answers

Answer:B

Explanation:

A 30L sample of N2 at 20*C is heated to 50*C. The pressure at 20*C was at 3 atm. What is the pressure of N2 after its temperature increased?

Answers

Volume stays constant, so: P1/T1 = P2/T2

P1 = 3 atm

T1 = 20*C = 293 K

P2 = ?

T2 = 50*C = 323 K

Solve for P2: P1T2/T1 = P2

P2 = (3 atm)(323 K)/(293 K) = 3.3 atm

The Pressure of N2 after its temperature increased will be "3.3 atm". To understand the calculation, check below.

Pressure and Temperature:

According to the question,

Pressure, P₁ = 3 atm

Temperature, T₁ = 20°C or,

                           = 293 K

                      T₂ = 50°C or,

                           = 323 K  

We know the relation,

→ [tex]\frac{P_1}{T_1}[/tex] = [tex]\frac{P_2}{T_2}[/tex]

or,

Pressure, P₂ = [tex]\frac{P_1\times T_2}{T_1}[/tex]

By substituting the values,

                     = [tex]\frac{3\times 323}{293}[/tex]

                     = [tex]\frac{969}{293}[/tex]

                     = 3.3 atm

Thus the above response is correct.

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19) Which one of the following statements describes a chemical property of hydrogen gas?
A) Hydrogen gas has a density of 0.00009 g/cm’ at STP.
B) Hydrogen gas burns in air.
C) Hydrogen gas has a boiling point of 20. K at standard pressure.
D) Hydrogen gas is colorless.

Answers

b) hydrogen gas burns in air.

explanation: the rest are physical properties.

If the [H3O+] of a solution is less than the [OH-], what can be said about the solution?
(A) The solution would have a higher pH than its pOH.
(B) The solution could still have a neutral pH.
(C) The solution would have a higher pOH than its pH.
(D) The solution would be basic only if the solution contained a weak acid.

Answers

Answer:

I was looking for this same answer.

Explanation:

If the [H₃O⁺] of a solution is less than the [OH⁻], then the solution would have a higher pH than its pOH.

How pOH is define?

pOH is define as the negative logarithm of the concentration of OH⁻ ion and for a basic solution its value should be less than 7.

In the question it is clear that concentration of H⁺ ion is les than the concentration of OH⁻ ion, so the given solution is basic in nature. Basicity of basic solution is calculated by using the pOH scale and for this solution value of pOH is less than 7, because more than 7 shows the acidic character. And according to the pH scale value of this solution should be more than 7.

Hence, option (A) is correct i.e. The solution would have a higher pH than its pOH.

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how many atoms are in 1.6g C? Answer in units of atoms.

(no answer choices were given)

Answers

Answer:

6.022  ×10(index 23) / 7.5 = 0.8293 ×10(index 23)

Explanation:

molar mass of C =  12gmol

therefore in 12g of C there is one mole or an amount of 6.022 ×10(index 23)

∴12g/6.02210(index 23) ×1.6g

What is the molarity of a solution containing 12.0 g of NaOH in 250.0 mL of solution?

Answers

Answer:

1.196 M NaOH

Explanation:

Molarity = moles/Volume (L)

moles NaOH = mass NaOH/MM NaOH = 12/40.01 = 0.299 moles NaOH

Volume solution = 250 mL = 0.250L

M = 0.299/0.250=1.196 M NaOH

If you squeeze a sealed bottle in the middle, what force is applied at the top of the bottle?

A) less force
B) more force
C) the same force
D) cannot be predicted​

Answers

B, more force.because the pressure forces it upward instead
Answer: B) more force

A
square is a diagram used to predict all possible allele combinations from a genetic
. Using this diagram, the phenotypes of offspring can be determined from the genotypes.

Answers

Answer:

AYAYYA

Explanation:

YEA

need diagram in order to answer

In the levels of organization of an organism, what does a group of cells make up?

Answers

Answer:

they make tissue. form organ and whole body an i true..

The following diagram shows a single cell. Is the cell eukaryotic or prokaryotic? Explain your reasoning. *

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Answer:

because it is a single cell. Cell A, because a nuclear membrane contains the cell’s DNA. Cell B, because it is much smaller. Cell B, because it contains genetic material

Explanation:

Which diagram represents matter with a definite volume but no
definite shape?

Answers

i think it is Substance C

A wagon is pushed in a straight line. How would an increase in friction on the wagon wheels affect the wagon ?

Answers

Answer:

A  wagon is pushed in a straight line. How would an increase in friction on the wagon wheels affect the wagon? A It would cause the wagon to move faster.

Explanation:

Hoped this helped you guys!

PLEASE HELP ILL CHOOSE BRAINLIEST I REALLY NEED THE HELP. Tungsten hexaflouride is a very heavy gas (MM=297.8/mol) Find the molar mass the diatomic gas that effuses through a proud plug about 2.8 times faster than the WF6 at the same temperature and pressure?
What is the identity of this diamotic gas?

Answers

Answer:

Tungsten(VI) fluoride, also known as tungsten hexafluoride, is an inorganic compound with the formula WF6. It is a toxic, corrosive, colorless gas, with a density of about 13 g/L (roughly 11 times heavier than air.[

Explanation:

The WF6 molecule is octahedral with the symmetry point group of Oh. The W–F bond distances are 183.2 pm. Between 2.3 and 17 °C, tungsten hexafluoride condenses into a pale yellow liquid having a density of 3.44 g/cm^3 at 15 °C. At 2.3 °C it freezes into a white solid having a cubic crystalline structure, the lattice constant of 628 pm, and a calculated density of 3.99 g/cm^3. At −9 °C this structure transforms into an orthorhombic solid with the lattice constants of a = 960.3 pm, b = 871.3 pm, and c = 504.4 pm, and the density of 4.56 g/cm3. In this phase, the W–F distance is 181 pm, and the mean closest intermolecular contacts are 312 pm. Whereas WF6 gas is one of the densest gases, with the density exceeding that of the heaviest elemental gas radon (9.73 g/L), the density of WF6 in the liquid and solid-state is rather moderate. The vapor pressure of WF6 between −70 and 17 °C can be described by the equation

log10 P = 4.55569 −

1021.208

T + 208.45,

where the P = vapor pressure (bar), T = temperature (°C).

Energy is transferred
between the ocean and the
air to make sure that the
temperature in the air is
higher than the temperature
on the surface.

True or false

Answers

true is the right oneee

What is the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules?

Answers

1 mole of CO2 has 6.02 x 10^23 molecules of CO2. Say x moles of CO2 has 3.0x10^23 molecules of CO2. Therefore x = 3/6.02 = 0.50. M = 0.50 * (12 + 2x16) = 0.50 * 44 = 22g

We have that for the Question "" it can be said that the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules is

Amount of CO_2(g)=221.35g

From the question we are told

What is the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules?

Generally the equation for the   is mathematically given as

[tex]No moles in 3*02*10^{24}=\frac{3.03*10^{24}}{6.023*10^-{23}}[/tex]

No moles in 3*02*10^{24}=5.03moles

Amount of CO_2(g)=5.03moles *44g/mol

Amount of CO_2(g)=221.35g

Hence

the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules is

Amount of CO_2(g)=221.35g

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1. the moderns periodic table, elements are ordered
a. according to decreasing atomic mass
b. according to mendeleev's original design
c. according to increasing atomic number​

Answers

Answer:

In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom In a periodic table arranged in order of increasing

C is the answer! Good luck

bromine water can be used to distinguish between these two molecules?? true or false​

Answers

Answer:i dkd

Explanation:

jsach

Freon, a very useful refrigerant, is produced in the following reaction:
3CCl4 (g) + 2SbF3 (s) → 3CCl2F2 (g) + 2 SbCl3 (s)
If a chemist wants to make 3.0 x 106 moles of Freon using excess carbon tetrachloride, how many moles of antimony trifluoride will the chemist need?

Answers

Answer:

The chemistry will need 2*10⁶ moles of antimony trifluoride.

Explanation:

The balanced reaction is:

3 CCl₄ (g) + 2 SbF₃ (s) → 3 CCl₂F₂(g) + 2 SbCl₃ (s)

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

CCl₄: 3 moles  SbF₃: 2 moles CCl₂F₂: 3 molesSbCl₃: 2 moles

You can apply the following rule of three: if by reaction stoichiometry 3 moles of freon are produced by 2 moles of antimony trifluoride, 3*10⁶ moles of Freon are produced from how many moles of antimony trifluoride?

[tex]moles of antimony trifluoride=\frac{3*10^{6} moles of freon*2 moles of antimony trifluoride}{3 moles of freon}[/tex]

moles of antimony trifluoride= 2*10⁶

The chemistry will need 2*10⁶ moles of antimony trifluoride.

METHANOL + ETHANOIC ACID​

Answers

Answer:

if you’re looking for a balanced equation it would be:

Methanol +ethanoic acid ==> methyl ethanoate + water ( in the presence of concentrated sulfuric acid )

CH3OH + CH3COOH==> CH3COOCH3 + H2O

~~~~~~

But, if you were looking for what it would be called it would be:

ethanoic acid with methanol will produce methyl ethanoate.

~~~~~~

And the reaction between Methanol and Ethanoic acid is known as esterification.

~~~~~~

I wasn’t sure of your question so I answered the best way that I could. I hope this helped!

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!! THIS IS DUE IN 10 MINUTES!!!!!
Forensic chemists are analyzing blood samples taken from a murder victim. They run tests for any trace of substances that do not naturally occur in the bloodstream. Nothing odd registers but they do find extremely high levels of caffeine. What does this most likely indicate about the murder victim?

A) They drank a lot of coffee.
B) They worked on a coffee bean plantation.
C) They were poisoned with powdered caffeine.
D) Someone put arsenic in their coffee.

Answers

Answer:

c

Explanation:

Answer:they were poisoned with powdered caffeine (C)

Explanation:

I just took the test! And got all the points for this question :) hoped I could help

What pressure is required to compress 196.0 liters of air at 1.00 atmosphere into a cylinder whose volume is 26.0 liters?

Answers

Answer:

if volume of the gas increases, its pressure decreases, and vice versa. mathematically, if the volume of the gas is  

V

1

and its pressure is  

P

1

. Let us suppose that its volume has been increased to  

V

2

, the as per the Boyle's law its pressure will decrease and let us assume the new pressure is  

P

2

.

P

1

 

V

1

=

P

2

V

2

P

1

= 1 atm

V

1

= 196 L

P

2

= ?

V

2

= 26 L substitute the values;

1 atm x 196 L =  

P

2

x 26 L

P

2

= 1 atm x 196 L / 26 L

P

2

= 196 atm L / 26 L = 7.53 atm

Explanation:

I hope this helps.

Answer:

7.53 atm

Explanation:

Boyle studied the relationship between the pressure of a trapped gas and its volume. The data obtained by him shows that the product of pressure and volume for the trapped air sample is constant at a constant temperature.  if volume of the gas increases, its pressure decreases, and vice versa. mathematically, if the volume of the gas is  V 1  and its pressure is  P 1 . Let us suppose that its volume has been increased to  V 2 , the as per the Boyle's law its pressure will decrease and let us assume the new pressure is  P 2 .  P 1   V 1  = P 2 V 2  P 1  = 1 atm V 1  = 196 L P 2  = ? V 2 = 26 L substitute the values;  1 atm x 196 L =  P 2  x 26 L  P 2  = 1 atm x 196 L / 26 L  P 2  = 196 atm L / 26 L = 7.53 atm

The enzyme amylase will affect the breakdown of carbohydrates, but it will not affect the breakdown of proteins. The ability of an enzyme molecule to interact with specific molecules is most directly determined by the

Answers

Answer:

Shape of the enzyme and its active site

Explanation:

What is the charge on the cation in the ionic compound when sodium and sulfur bond?

Answers

Answer:

1+

Explanation:

Sodium has one valence electron. When it bonds with a nonmetal like sulfur, it gives up that electron to become a positively charged ion (cation) with a charge of 1+.

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