Chemistry, 01.02.2021 20:40 negativechill
A 5.5 gg sample of a substance contains only carbon and oxygen. Carbon makes up 35%% of the mass of the substance. The rest is made of oxygen. You are asked to determine the mass of oxygen in the sample. Which of the following expressions demonstrates a mathematical procedure to solve this problem using the proper order of operations?
a. ((100 - 35)/100) times 5.5 grams =
b. 100 - 35/100 times 5.5 grams =
c. 100 - (35/100) times 5.5 grams=
Answers: 3
Chemistry, 22.06.2019 00:00
What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17
Answers: 1
Chemistry, 22.06.2019 08:30
Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?
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A 5.5 gg sample of a substance contains only carbon and oxygen. Carbon makes up 35%% of the mass of...
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