Chemistry, 24.09.2020 21:01 pearpeaerrr1993
2. Naturally occurring lithium consists of two isotopes: (92.5%), with an isotopic mass of 7.016
amu and 7.5%), with an isotopic mass of 6.015 amu. What is the atomic weight of lithium?
97Check your answer in a periodic table.
Answers: 2
Chemistry, 23.06.2019 11:20
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.
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Chemistry, 23.06.2019 14:00
Which statement describes the arrhenius interpretation of acids and bases?
Answers: 1
2. Naturally occurring lithium consists of two isotopes: (92.5%), with an isotopic mass of 7.016
am...
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