Physical Science Final

Front

How many electrons are found in the outer shell of an atom when the shell is full?

Back

8

Front

What is the half-life of an isotope?

Back

The time required to undergo radioactive decay.

Front

What are the three most common states of matter in order by increasing force?

Back

gas → liquid → solid

Front

A chemical reaction is shown below.
K + MgBr → KBr + Mg
Which chemical reaction shows a reaction that supports the law of conservation of matter?

Back

K + MgBr → KBr + Mg

Front

In a balanced equation which law is displayed?

Back

The law of conservation of matter

Front

What is the chemical formula for salt?

Back

NaClO₃

Front

Suppose sand was heated by the sun, what happens to the energy absorbed by the sand if the sun goes down?

Back

It is transferred to the air via the process of radiation.

Front

If you had a gas in water, how could you increase the solubility?

Back

cooling the solution

Front

If pressure increases on a bicycle tire when heated by the sun, what would happen to the volume?

Back

increase

Front

The image demonstrates which of Newton's three laws?

Back

Third Law