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A substance that speeds up the rate of a chemical reaction is called a. a catalyst. b. a lipid. c. a molecule. d. an element.
answered
Feb 26, 2017
Chemistry
high-school
3
votes
22.6k
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What number would complete the pattern? 107 98 90 83 77 68 65
answered
Feb 3, 2017
Mathematics
high-school
5
votes
23.3k
views
The __________ controlled a large empire in what is now Cambodia. a. French Indochinese b. Khmer c. Siamese d. Indonesians
answered
Sep 10, 2016
History
high-school
2
votes
82.7k
views
√(x+10)= x-2 Help? Has to be factored.
answered
Sep 1, 2016
Mathematics
high-school
3
votes
39.0k
views
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