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: a substance that is added to a chemical reaction, that increases the rate of the reaction, that is not consumed in the reaction, and that does not affect the equilibrium in any way
answered
Apr 26, 2018
Chemistry
middle-school
3
votes
149k
views
which statement best explains why drought is an economic problem?a)Rainfall cannot be predicted easily.b)The effects of drought require government action.c)Droughts cannot be prevented.d)Water is a scarce
answered
Sep 26, 2017
History
high-school
4
votes
101k
views
Which statement accurately compares advances in mathematics to advances in writing during the Bronze Age?
answered
Jun 18, 2017
History
high-school
2
votes
54.0k
views
The number line is a graph of... a. real numbers b. integers c. rational numbers
answered
Apr 17, 2017
Mathematics
high-school
2
votes
149k
views
How did the Declaration of Independence happen
answered
Mar 16, 2015
History
high-school
4
votes
144k
views
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