Chemistry Review

Positively charged particles in an atom are:

• Protons

• Neutrons

• Electrons

• Ions

The pH Scale measures:

• Positive or negative ions

• Acids and Bases

• Electricity

• None of These

The smallest part of an element is:

• Nucleus

• Atom

• Electron

• Chloroplast

A compound made up of a liquid and another element is a:

• Solution

• Solute

• Solvent

• Salutation

Catalysts (BLANK) chemical reactions.

• slow down

• speed up

• stop

• reverse

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Ions are elements that have a:

• proton

• neutron

• electron

• charge

A chemical reaction has two parts: the (BLANK) and the products.

• Elements

• Compounds

• Reactants

• None of these

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Name one of the states of matter water can be found in:

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NGSS.MS-PS3-4

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In saltwater, the water is the:

• Solute

• Solvent

• Wet Stuff

• None of these

Covalent bonds are:

• weaker than ionic

• share electrons

• always use hydrogen

• none of these

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NGSS.MS-PS1-1