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Nezavi [6.7K]
3 years ago
12

Which of the following is not true regarding gases? A. When the temp of a gas decreases its volume increases if the pressure is

held constant. B. Equal volumes of gases at the same temp and pressure contain the same numbers of molecules C. The molecules of gas are in constant motion.
Chemistry
1 answer:
iVinArrow [24]3 years ago
6 0
The answer is B, since some gas molecules are much larger than others.
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A compound has 15.39 g of gold for every 2.77 g of chlorine.
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Answer:

There is 5.56 g of gold for every 1 g of chlorine

Explanation:

The question is to determine the simplest mass ratio of gold to Chlorine in the compound.

Since the mass of gold in the compound compared to chlorine is 15.39 g for every 2.77 g, the mass of gold per gram of chlorine is given as:

15.39 / 2.77 = 5.56 g of gold to two decimal places

<em>Therefore, for every 5.56 g of gold, there is 1 g of chlorine.</em>

<em>Note : The ratio in which different elements combine by mass to form a compound is given by the law of constant composition which states that, "all pure samples of a particular chemical compound contain the same elements combined in the same proportion by mass.</em>

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Do bases lose or gain hydrogen ions?<br><br><br>Help :-)
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Answer:

Acids are classified in the Bronsted Lowry acid-base theory as species, which losses hydrogen ions (H+, known as protons) in a chemical reaction (and are foundation species that accept hydrogen ions).

7 0
3 years ago
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My name is Ann [436]

Answer:

What I came up with was D equaling out to be 42

Explanation:

Im assuming you just do the math

A. 3.5 x 104 = 364

B. 2.4 x 103 = 247.2

C. 1.4 x 10^2_2 = 280

D. 4.9 x 10-7 = 42

I hope I helped.

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