1. Examples of pure substances are
elements and .
O mixtures
O compounds...
Chemistry, 12.12.2020 16:30 AutumnGarringer
1. Examples of pure substances are
elements and .
O mixtures
O compounds
Answers: 1
Chemistry, 21.06.2019 14:30
Order the following from smallest to largest atom, electron, quark, proton, neutron, molecule, nucleus
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
Chemistry, 22.06.2019 17:00
Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
Answers: 1
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Volume is a measurement of how fast particles of a substance are moving
Answers: 3
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