How many atoms are in 1mg of NaCl

Answer:

I can help you with that... I cannot screenshot your question... what you can do is send me that PDF

Answer:

heated the water

Explanation:

How many chiral stereoisomers can be drawn for CH3CHFCHFCH(CH3)2?

Answer:

Explanation:

Answer:

nothing

Explanation:

Answer:

Convection, or the flow of mantle material transporting heat, drives plate tectonics.

Explanation:

Have a nice day !!! :)

I don't do physics in school guyz so please

Answer:

Explanation:

Interesting question - especially if you are afflicted by something like Leukemia where it pays to know everything you can about Hemoglobin.

Molecules

1 mole of anything has 6.02 * 10^23 in this case molecules

6.4*10^-3 moles has x number of molecules

Set up the proportion

1/6.4*10^-3   =  6.02 * 10^23 molecule / x          Cross Multiply

x = 6.4*10^-3 * 6.02 * 10^23

x = 3.853*10^21 molecules

Mass Hemoglobin

1 mol of hemoglobin is 64456 grams

6.4*10^-3 moles = x grams                                  Cross multiply

x = 64456 * 6.4*10^-3

x = 412.5 grams of hemoglobin in this woman's body.

If you are American and think in pounds, then this is roughly a pound of hemoglobin.

Considering that you need hemoglobin to carry oxygen around to various organs, it is not an awful lot. That's the miracle of the human body.

Answer: Photosynthesis

Explanation:

The process of photosynthesis is used to help make food for plants. The inputs are sunlight, water (H2O), and carbon dioxide (CO2). Then the outputs are glucose (C6H12O6) which is food, and oxygen (O2) is released.

I hope this helps :)

The mole fraction of acetone (C₃H₆O) is 0.333

Mole fraction of a substance can be obtained by using the following formula:

Mole fraction = mole / total mole

With the above formula, we can obtain the mole fraction of C₃H₆O as follow:

Mole fraction = mole / total mole

Mole fraction of C₃H₆O = 0.1 / 0.3

Mole fraction of C₃H₆O = 0.333

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Explanation:

Hot air balloons work because hot air rises. By heating the air inside the balloon with the burner, it becomes lighter than the cooler air on the outside. This causes the balloon to float upwards, as if it were in water.

In response to the upward buoyant force, the hot air in the balloon rises.

The upward force that an object experiences from the air it displaces is known as air buoyancy.

Here,

Due to the fact that hot air is less dense than cold air of similar volume, the heated air causes the balloon to rise. Hot air balloons and blimps benefit from buoyancy, which is the air's upward force that keeps them in the air.

The wind determines the balloon's flight path, but the temperature of the air inside the envelope can be changed to alter the balloon's altitude. In order to raise the temperature inside the envelope and increase lift, the pilot may open one or more burner blast valves, causing the aircraft to ascend, slow down, or stop its descent.

If the envelope has a vent, the pilot can also open it to let hot air escape, which will lower the temperature inside the envelope and reduce lift, allowing the aircraft to descend or slow down or cease ascending.

If the pilot doesn't take action, the air inside the envelope will gradually cool through seepage or contact with cooler outside air and give less lift.

Hence,

In response to the upward buoyant force, the hot air in the balloon rises.

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We can better define the problem by saying that solution is concentrated or diluted with respect to solution B or D respectively.

The concentration of solution C lies somewhere between that of B and D.

Thus, if we are to qualify the concentration of solution C with respect to that of B, we will say it is concentrated.

If we are to qualify the concentration of solution C with respect to that of D, we will say solution C is diluted.

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The formula for iron (II) sulfate hexahydrate

[tex]is[/tex]

FeH12O10S

Refer to the attachment not letting me add answer

Answer:

➢ Oxygen exists as a diatomic molecule in nature when it is not combined with any other element. It forms O2 molecule because it is stable when it is uncombined. ... By achieving octet configuration, the diatomic elements become more stable compared to the single atom. Therefore, oxygen and hydrogen are diatomic.

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Answer:

(a) Molar mass of ca= 40g/mol

(b) O2= 16 * 2 = 32g/mol

Answer:

760 mm of Hg

Explanation:

If the gases A , B and C are non reacting , then according to Dalton's Law of Partial Pressure the total pressure exerted is equal to sum of individual partial pressure of the gases .

If there are n , number of gases then ,

[tex] P_{total}= P_1+P_2+P_3+\dots +P_n[/tex]

Here ,

Hence the total pressure exerted is ,

[tex] P_{total}= P_{Gas\ A }+P_{Gas\ B }+P_{Gas\ C }[/tex]

Substitute ,

[tex]P_{total}=( 400 + 220 + 140 )mm\ of \ Hg [/tex]

Add ,

[tex]P_{total}= 760\ mm\ of \ Hg[/tex]

Hence the total pressure exerted by the gases is 760 mm of Hg.

I hope this helps.

Oxygen is participating in non-polar covalent bond(s)

Oxygen forms 2 covalent bond.

This is because oxygen atoms have 6 valence electrons. This means that it has 2 lone pairs and 2 unpaired electrons that are shared in order to achieve octet configuration.

In this chemistry, the 2 lone pairs on the oxygen are not shared with any other atoms. Instead; they are assigned to the oxygen atom. The formal charge on the oxygen atom is zero. Oxygen's atomic number is 8 and is equal to the sum of the number of its valence and inner shell electrons.

Nonpolar covalent bonding is a kind of covalent bond in which the bonding electrons are shared equally between the two atoms.

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The mechanism of chemical reaction is the series of steps

by which chemical reaction follows to for a new substances.

For a new substance to evolve from a chemical reaction, there are some steps that needs to be taken. These steps include:

The study of reaction rate, which is the change in concentration of a reactant or product with time, helps to explain further the mechanism of chemical reaction.

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The name of an aqueous solution of  [tex]H_{2}S[/tex] is "hydrogen sulfide solution" or "sulfhydric acid solution."

It is a chemical formula which represents the compound hydrogen sulfide, which consists of two hydrogen atoms bonded to a sulfur atom. When [tex]H_{2} S[/tex] dissolves in water ([tex]H_{2}O[/tex]), forms an aqueous solution.

The naming for acid solutions is based on the corresponding acid's name. Here, H2S is an acid called sulfurous acid. The -ous suffix is used to refer to an acid derived from a non-oxygen-containing anion, here, the sulfide anion (S2-). When  acid is dissolved in water, the resulting solution is called as "sulfurous acid solution."

Therefore, the name for an aqueous solution of H2S is "sulfurous acid solution."

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Answer:

the elephant toothpaste would go everywhere

Answer:

Cellular respiration is used to create usable energy from the foods that living things eat. It's important to know that the reactions involved in cellular respiration are catabolic, meaning they break down molecules into smaller ones. This differs from anabolic reactions, which build bigger molecules from smaller ones

Answer:

93.7

Explanation:

moles = mass ÷ relative atomic mass

mass = 5227g, relative atomic mass of Fe = 55.8

moles = 5227 ÷ 55.8 = 93.7 (1dp)

Answer: It means

Oxyhydrogen

Explanation:  Each water molecule is made of two hydrogen atoms and one oxygen atom, thus there are two H atoms and one O.

Avogadro's number is the number of particles in one mole of a pure substance.

The Avogadro number or constant was ned after an Italian scientist that discovered it and He is called Amedeo Avogadro. It is the the number of particles in one mole of a substance or it can be refer to the proportionality factor that of a number of constituent particles in a sample with the amount of substance contained in the sample. Its SI unit = 6.02214076×10²³ mol⁻¹.

Therefore, Avogadro's number is the number of particles in one mole of a pure substance.

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If all the reactors are used, the pressure inside the flask will most likely increase to 4 atm.

Atmospheric pressure is a force per unit area exerted by the air in the atmosphere on the Earth's surface. The value of atmospheric pressure above sea level is 1013.25 hPa.

The atmospheric pressure varies from different meteorological factors such as:

According to the above, if all the reactors are used at atmospheric pressure, it will most likely increase.

Note: This question is incomplete because some information is missing. However I can answer it based on my prior knowledge.

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Considering the definition of empirical formula,  the empirical formula is Cd₁C₂H₃O₂= CdC₂H₃O₂.

The empirical formula is the simplest expression to represent a chemical compound, which indicates the elements that are present and the minimum proportion in whole numbers that exist between its atoms, that is, the subscripts of chemical formulas are reduced to the most integers. small as possible.

You know that a compound is made up of 168.2 g Cd, 35.96 g C, 4.53 g H, and 47.91 g O.

Then it is possible to calculate the number of moles of each atom in the molecule, taking into account the corresponding molar mass:

Cd: [tex]\frac{168.2 g}{112.4 \frac{g}{mole} } =[/tex] 1.496 moles

C: [tex]\frac{35.96 g}{12 \frac{g}{mole} } =[/tex] 2.997 moles

H: [tex]\frac{4.53 g}{1 \frac{g}{mole} } =[/tex] 4.53 moles

O: [tex]\frac{47.91 g}{16 \frac{g}{mole} } =[/tex] 2.994 moles

The empirical formula must be expressed using whole number relationships, for this the numbers of moles are divided by the smallest result of those obtained. In this case:

Cd: [tex]\frac{1.496 moles}{1.496 moles } =[/tex] 1

C: [tex]\frac{2.997 moles}{1.496 moles } =[/tex] 2

H: [tex]\frac{4.53 moles}{1.496 moles } =[/tex] 3.02≅ 3

O: [tex]\frac{2.994 moles}{1.496 moles } =[/tex] 2

Therefore the Cd: C: H: O mole ratio is 1: 2: 3: 2.

Finally, the empirical formula is Cd₁C₂H₃O₂= CdC₂H₃O₂.

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Answer: 0.18

Explanation:

the molarity equation is moles of solute over L of solution:

mol (solute)/L (solution

so you need to convert 6.14g of LiNO3 into moles so:

6.14g LiNO3 • 1 mol

———— = 0.0890552 mol

68.946g LiNO3 (molar mass)

then you need to convert 505ml to L:

505/1000= 0.505

then you just follow the equation

0.0890552 mol / 0.505 L = 0.17634694 or 0.18 for sigfigs

0.18 M

hope this helps :)

Answer:

Explanation:

Element Name - Actinium

Symbol - AC

Electronegativity - 1.1

It is a Rare Silvery- white metal that's highly radio active

Answer:

More reactive - Sodium and potassium

Less reactive - Aluminum, Manganese and Zinc

Answer:

Explanation:

Here we need to state two metals that are more reactive than Magnesium and three metals which are less reactive than Magnesium using the Reactivity series .

The Reactivity series goes like ,

K > Na > Ca > Mg > Al > Zn > Fe > Ni > Sb > Pb > H > Cu > Hg > Ag > Au > Pt

So from this we see that , Pottasium (K) , Sodium (Na) and Calcium (Ca) are more reactive than Magnesium and Aluminium (Al) , Zinc (Zn) and Iron (Fe) are less reactive than Magnesium .

So that ,

→ Two more reactive metals= K and Na

→ Three less reactive metals = Al , Zn and Fe

I hope this helps .