According to the kinetic molecular theory, which statement describes an ideal gas?(1) The gas particles are diatomic
(2) Energy is created when the gas particles collide
(3) There are no attractive forces between the gas particles
(4) The distance between the gas particles is small, compared to their size.

Answers

Answer 1

Answer: The correct answer is option 3. There are no attractive forces between the gas particles in an ideal gas. For an ideal gas to be achieved, the molecules are far from each other as possible where no attraction or collisions happen with each molecule.

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How many atoms are in 6.2 moles of aluminum?
Pls help ASAP I am literally so tired I hate this so much
Which shows the formula for an Organic acid
Which ionic compound is used as a building material? 1.salt 2.limestone 3.magnesium oxide 4.iron oxide

As you go across a period the atomic radius decreases because...

Answers

More electrons pull together towards the nucleus.

Consider the equation below. Zn + H2SO4 mc010-1.jpg ZnSO4 + H2 The mole ratio of zinc to zinc sulfate is

Answers

Answer: The mole ratio of zinc to zinc sulfate is 1:1.

Explanation:

$Zn+ H_2SO_4\rightarrow ZnSO_4+H_2$

According to reaction,1 mole of zinc reacts with 1 mole of sulfuric acid to give 1 mole zinc sulfate and 1 mole of hydrogen gas .

So, the mole ratio of zinc to zinc sulfate is:

$\text{moles of}Zn:\text{moles of}ZnSO_4=1 mol:1 mol=1:1$

Hence, the mole ratio of zinc to zinc sulfate is 1:1.

Zn=65 grams/mole
20 grams/ (65 grams/mole)=0.31 moles of zinc
The molar ratio of Zn and H2 is 1 to 1, so 0.31 moles of H2 are also produced. The ratio is the same for the sulfuric acid. H2SO4=2*1+32+16*4=98 grams/mole
(98 grams/mole)*0.31 moles=30.4 grams of H2SO4.

Which type of concentration is calculated when the grams of solute is divided by the grams of the solution, and the result is multiplied by 1 000 000?(1) molarity (2) parts per million(3) percent by mass (4) percent by volume

Answers

The correct answer is option 2. One way of expressing concentration is by expressing it by parts per million or ppm. It is calculated by dividing the grams of solute and the grams of the solution, and the result is multiplied by 1 000 000. Parts per million is equal to 1 milligram of solute per kilogram of solution.

Today, there are about how many people living on the earth?3.4 billion
7.5 billion
9.0 billion
6.6 billion

Answers

Answer:

The correct answer is option B, 7.5 billion

Explanation:

As per the US Census Bureau, the world population in year 2016 was approximately US

7346235000. As per the UN estimate there were 7 billion people on planet earth in 2011 and World Bank estimates say that there were 7 billion people in year 2012

The top most populated countries in coming year (along with their population) would be

China 1,367,485,388

India 1,251,695,584

United States 321,368,864

6.6 billion I got it right on Odyssey.

The process of gas converting to a liquid is called evaporation.

TRUE

FALSE

Answers

False. Because gas to a liquid is called condensation

The monoprotic acid from among the following isa. H2CO3.
b. H2SO4.
c. H3PO4.
d. HCl.

Answers

Answer: Option (d) is the correct answer.

Explanation:

An acid which gives only one hydrogen ion or $H^(+)$ ions upon dissociation in an aqueous solution is known as a monoprotic acid.

Whereas when an acid gives two hydrogen or $H^(+)$ ions upon dissociation in an aqueous solution is known as a diprotoc acid.

And when an acid gives three hydrogen or $H^(+)$ ions upon dissociation in an aqueous solution is known as a triprotoc acid.

Therefore dissociation of the given acids in an aqueous solution will be as follows.

$H_(2)CO_(3) \rightarrow 2H^(+) + CO^(2-)_(3)$

$H_(2)SO_(4) \rightarrow 2H^(+) + SO^(2-)_(4)$

$H_(3)PO_(4) \rightarrow 3H^(+) + PO^(2-)_(4)$

$HCl \rightarrow H^(+) + Cl^(-)$

Hence, we can conclude that out of the given options, HCl is the monoprotic acid.

Monoprotic acid are acids having only one hydrogen atoms after dissociation into ions from its compound. The monoprotic acid from among the following is HCl. The answer is letter D. HCl → H+ + Cl-. Note that there is only one H+ ion upon dissociation.

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