BJU Chapter 7 6th grade Science

a___reaction occurs when a compound is broken down into simpler

When positively and negatively charged ions attract each other they form a___

The compound H2CO3 has___atom of carbon in it

A substance that changes color when exposed to acid or base solutions is called a__

___an atom that has gained or lost electrons

Acid or Base; can burn, can be corrosive

In a___atoms share electrons

Acid or Base; sour taste

___a substance; only one kind of atom

Acid or Base; baking soda, soap, bleach

Scientist___developed a simplified model of an atom

You can determine the concentration of acids or bases in a solution by using___

The scientist___developed the periodic table of the elements

__chemical symbols and number abbreviating the name of a compound

_the study of matter-what it is made of, what its usual characteristics are

Acid or Base; lemons, vinegar, tomato juice

Acid or Base; slippery to touch

The sum of the number of protons and neutrons results in an atom's

___an ionic compound produced from a reaction between an acid and a base

___the process in which different types of atoms join and form a new substance

Acid or Base; bitter taste

___based on the number of protons in the nucleus

___the smallest piece of an element that can be recognized as that element