subject
Chemistry, 16.02.2021 18:50 Trendymwah4211

A 2.45 g sample of calcium completely reacts with oxygen to form 3.43 g of calcium oxide. What is the mass percent composition of calcium in calcium oxide.

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 05:20
Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.
Answers: 1
question
Chemistry, 22.06.2019 07:30
In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?
Answers: 1
question
Chemistry, 22.06.2019 08:20
What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5
Answers: 3
question
Chemistry, 22.06.2019 09:30
1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle
Answers: 1
You know the right answer?
A 2.45 g sample of calcium completely reacts with oxygen to form 3.43 g of calcium oxide. What is th...
Questions
question
Mathematics, 31.08.2019 23:50
question
Mathematics, 31.08.2019 23:50
Questions on the website: 13722360