Chemistry, 23.10.2020 20:40 sandersmakaylaovq5vu
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What is the average atomic mass of strontium? Naturally occurring strontium consists of four isotopes,
Sr-84, Sr-86, Sr-87 and Sr-88. Below is the data concerning strontium.
Sr-84 Sr-86 Sr-87 Sr-88
0.56% 9.86% 7.00% 82.58%
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In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent
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Geothermal energy for industrial use is available almost anywhere. a.true b.false
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Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.
Answers: 2
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What is the average atomic...
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