Chemistry, 17.12.2020 22:10 sanafarghal
How many joules of heat are required to raise the temperature of 350 g of liquid water from 12.0 °C to 18.0 °C?
116,900J
8,778J
17,556J
26,334J
Answers: 1
Chemistry, 21.06.2019 13:30
10. according to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?
Answers: 3
Chemistry, 21.06.2019 15:40
What is the total reduction potential of a cell in which potassium (k) is reduced and copper (cu) is oxidized? a. 2.59 v b. 3.27 v c. -3.27 v d.-2.59 v
Answers: 1
Chemistry, 22.06.2019 12:30
Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.
Answers: 3
Chemistry, 22.06.2019 13:50
Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
How many joules of heat are required to raise the temperature of 350 g of liquid water from 12.0 °C...
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