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1. What does the atomic number of an element represent?. # protons. 2. What is the atomic # of iron?. 26. 3. How many protons are in an iron atom?. 26. 4. What is the charge of the nucleus of an iron atom?. +26. 5. How many electrons are in an iron atom?. 26.

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Which has more mass an atom of iron or an atom of carbon how do you know

Which has more mass – an atom of iron or an atom of carbon? How do you know?

An atom of iron.

Iron has a higher atomic mass than carbon.


Draw a model for an atom of carbon 12

Draw a model for an atom of carbon-12 carbon? How do you know?


What are the three major physical states of matter

What are the three major physical states of matter? carbon? How do you know?

Solid

Liquid

Gas


It decreases d m v

When liquid water evaporates it becomes a gas. The volume increases as gas molecules move farther apart.A. If volume increases due to evaporation, what happens to the density of the water?

It decreases (D = M/V)


B explain why clouds form over warm ocean waters

B. Explain why clouds form over warm ocean waters: increases as gas molecules move farther apart.

Water evaporates as it is heated. It has a lower density (a gas), so it rises. Once it cools to its dew point the vapor condenses to form cloud droplets.


Is tapwater a substance or a mixture explain

Is increases as gas molecules move farther apart.tapwater a substance or a mixture? Explain.

Mixture. It consists of water mixed with various salts.


Is water a substance or a mixture

Is water a substance or a mixture? increases as gas molecules move farther apart.

Depends. If distilled and degasses it is a substance. Otherwise it is a mixture.