Anything that has mass and occupies space

Measurement of the amount of matter in an object

Measurement of the amount of GRAVITATIONAL FORCE on an object

I am the basic building block of all matter. Who am I?

Char t of all elements known to exist

When 2 or more LIKE OR UNLIKE atoms combine they form a ______

When 2 or more UNLIKE atoms combine they form a _____

True or False A compound is NOT a pure substance.

A compound is represented by a ______________ Like SO2

What is the ratio of atoms in the chemical formula: HO4

What unit of measurement is used to measure mass?

What instrument is used to measure mass?

I am the 3rd most abundant gas in the air. If you run electricity through me I turn purple. Who am I?

If a model of air contains 7 oxygen molecules, how many nitrogen molecules should it have?

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