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A scientist measures the rate of a reaction between two liquids. Then he performs the reaction again, adding solid manganese. The reaction takes place more quickly the second time. The mass of the manganese
answered
Mar 5, 2018
Chemistry
high-school
6
votes
165k
views
A mountaintop is a height y above the level ground. A woman measures the angle of elevation of the mountaintop to be θ when she is a horizontal distance x from the mountaintop. After walking a distance
answered
Jan 27, 2018
Mathematics
college
1
vote
133k
views
Other ways to write 18:4
answered
Dec 16, 2017
Mathematics
middle-school
2
votes
161k
views
A government ruled by a king or queen is a __________.
answered
Jul 26, 2017
History
high-school
4
votes
93.3k
views
When rolling a single number cube, what are the odds, in simplest form, in favor of rolling a 4 or a 5? A) 1:1 B) 1:2 C) 1:3 D) 1:5
answered
Jul 24, 2017
Mathematics
middle-school
4
votes
115k
views
The best tool to use to measure distance underwater is _____. GIS GPS RADAR SONAR
answered
May 9, 2017
Computers and Technology
high-school
3
votes
41.1k
views
What do snakes and giraffes have in common? (key shared characteristics)
answered
Jun 24, 2015
Biology
middle-school
7
votes
69.1k
views
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