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3 years ago

What is true about the speed of molecules in a sample of gas held at a constant temperature?

Chemistry

1 answer:

vovikov84 [41]3 years ago

3 0

At the constant temperatures the lighter the gas molecules, the faster the average velocity of the gas molecules.

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The _ and _ are part of the digestive system. chose ONE from each of these list.

lina2011 [118]

Answer:

liver and esophagus.

Explanation:

Kidneys are part of the endocrine system, trachea and bronchi are part of the respiratory system

4 0

3 years ago

Read 2 more answers

1) Consider this row in the periodic table. What changes can you predict based on what information is provided by the boxes for

bearhunter [10]

Answer:

B) As you move across the row, the number of electrons increases and reactivity also increases.

Explanation:

The periodic table is arranged in a way that if you go across a period, the number of protons, neutrons, and electrons in an element increases. In terms of reactivity, the most reactive elements are the ones which have a high electronegativity. The electronegativity of the elements increases as you travel to the right and upwards on the periodic table.

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2 years ago

Setting up a one-step unit conversion A student sets up the following equation to convert a measurement. (The ? stands for a num

Aneli [31]

Answer:

0.0008 m

Explanation:

We are given that 0.080 cm

We have to convert 0.080 cm into meter

To find the value of 0.080 cm in meter we are using unitary method

We know that

100 cm =1 m

1 cm = $\frac{1}{100} m$

Therefore, 0.080 cm = $\frac{1}{100}\times 0.080 m$

0.080 cm = $\frac{1}{100}\times \frac{80}{1000}m$

0.080 cm = $\frac{8}{10000}m$

0.08cm=0.0008 m

Hence, the value of 0.080 cm is equal to 0.0008 meter .

7 0

3 years ago

According to the Law of Conservation of Mass, how much water is produced if 22.5 g of

nadezda [96]

Answer: The amount of water produced is 9.3 grams

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

$CH_4+2O_2\rightarrow CO_2+2H_2O$

mass of reactants = mass of methane + mass of oxygen = 22.5 g + 35.7 g = 58.2 g

mass of products = mass of carbon dioxide + mass of water = 48.9 g + mass of water

48.9 g + mass of water = 58.2 g

mass of water = 9.3 g

4 0

3 years ago

In a solid to liquid mixture and increase in temperature means?

Gekata [30.6K]

Answer:

Increase in temperature will not affect a solid - liquid mixture. Example can be taken of salt and water

3 0

3 years ago