Answers: 2
Chemistry, 22.06.2019 03:00, Dkhaurithompson
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, 23.06.2019 04:00, Tiredd7838
Which of these are physical changes in matter? check all that apply boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese
Answers: 1
Chemistry, 23.06.2019 06:10, tammydbrooks43
How much would the freezing point of water decrease if 4 mol of nacl were added to 1 kg of water (kf=1.86 degrees c/(mol/kg) for water and i=2 for nacl a- 7.44 degrees c b- 14.88 c 3.72 d 1.86
Answers: 1
Will every atom of the same type element have the exact same number of neutrons, explain why or why...
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