Can someone answer these three problems?
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Answers: 3
Chemistry, 22.06.2019 03:00
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
Answers: 1
Chemistry, 22.06.2019 05:00
What forms when chemical reactions combine pollution with sunlight?
Answers: 1
Chemistry, 22.06.2019 10:00
How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?
Answers: 1
Chemistry, 22.06.2019 15:00
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
Answers: 2
Computers and Technology, 25.10.2019 02:43