Melting ice is an example of a(n)

You calculate the density of pure water to be 1 g/ml. You have just found

You put a beaker of ice on a hot plate and turn it on high. For 5 minutes the temperature of the ice remains the same. Why ?

When you add energy to a substance, what two things can occur to the molecules of the substance?

In the chemical equation Na + Cl - NaCl, what is (are) the reactant(s)?

In the chemical equation Na + Cl - NaCl, what is (are) the product(s)?

Matter is anything that has

The study of matter and how matter changes is called

Which below is a chemical property?

Which below is a physical property.

When you combine two substances chemically and create a new substance, you have created a(n)

What is the difference between a compound and a mixture.

A mixture in which you can see the individual particles is a(n)

Salt is made of sodium, an explosive solid, and chlorine a poisonus gas. Why can we eat salt?

Is the chemical equation on the board balanced?

In the chemical equation Na + Cl - NaCl, if I have 10 grams of Na and 20 grams of Cl, how much NaCl should I have?

A single kind of matter that always has a specific makeup and a specific set of properties.

A pure substance made of two or more elements chemically combined in a set ratio.

A characteristic of a substance which can be observed without changing it into another substance.

A characteristic of a pure substance that describes its ability to change into different substances.

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