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Flashcards in Chemical Reactions Practice Test Deck (19):
1

The general formula for a ____________________ reaction is
AB->A+B

Decomposition

2

Balancing a chemical equation so that the same number of atoms of each element is present both before and after the reaction is an illustration of

Conservation of matter/mass

3

The general formula for a __________________ reaction is
A + B -> AB

Synthesis

4

A bonfire is an example of a(n)_________________ reaction

Exothermic

5

In which type of reaction do the parts of two compounds switch places

Double replacement

6

A(n) ____________ lowers activation energy

Catalyst

7

The matter present after a reaction takes place is called a(n)

Product

8

One indicator of a chemical reaction is

Gases forming

9

One indicator of a chemical reaction is

Gases forming

10

In the formula H O the 2 is a

Subscript

11

When an atom loses e- a(n) __________________ is formed

Ion

12

Any substance that enters into a chemical reaction is called a(n)

Reactant

13

A chemical reaction where an uncombined element replaces an element that is part of a compound is called a(n). __________________ reaction.

Single replacement

14

An increase in temp. Will usually cause the rate of reaction to increase

Increase

15

An ionic bond is formed when electrons are

Exchanged

16

If there is a chemical reaction and energy is released the reaction is called a(n)

Exothermic

17

As a result of an endothermic chemical reaction energy is


Absorbed

18

When a chemical reaction occurs, there is always a change in

Energy

19

Hand warmers are an example of a(n)

Exothermic reaction