Reaction Basics & the Atom

The starting chemical in a reaction is called a ________.

• products

• initializer

• compounds

• reactants

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6A Reaction Basics

The products are generally found ____________ the arrow in a chemical reaciton.

• left of

• right of

• above

• below

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6A Reaction Basics

Which one of the following represents carbon dioxide?

• H₂O

• CH₄

• CO₂

• CH₃OH

What is the scientific name for when a substance ‘disappears’ into water?

• combustion

• double displacement

• dissolving

• synthesis

Tags

10A Dissolving Process & Solubility

What is the scientific name for when a substance breaks apart into ions in water?

• dissociation

• aggregation

• combustion

• synthesis

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10A Dissolving Process & Solubility

How many atoms of sodium are in Na₃PO₄?

• 3

• 4

• 8

• 12

• None of these

Tags

5A Naming Basics

How many atoms of oxygen are in Cr(BrO₄)₃?

• 1

• 3

• 4

• 7

• 12

Tags

5A Naming Basics

How many different elements are in NaHCO₃?

• 2

• 3

• 4

• 6

• 7

Tags

6A Reaction Basics

What is the whole number that appears in front of a formula in a chemical equation? For example the two in front of the HCl.

• subscript

• superscript

• ratio

• coefficient

• charge

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6A Reaction Basics

In an equation, the symbol for a substance dissolved in water is followed by

• (l)

• (aq)

• (s)

• (g)

Tags

6A Reaction Basics