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Questions in chemistry

[Done] How much of each gas is there in 100 cm³ of air?

[Done] What form of energy provides power for a gas stove? A. Nuclear energy B. Electrical energy C. Chemical energy D. Sound energy Can you explain the answer for me?

[Done] When atoms react, they form a chemical bond. What is a chemical bond defined as?

[Done] Why is nonpoint source pollution potentially more harmful than point source pollution? A. Nonpoint source pollution disrupts the water cycle. B. Nonpoint source pollution is difficult to regulate. C. Nonpoint source pollution comes from more than one source. D. Nonpoint source pollution is more damaging to living organisms than point source pollution.

[Done] Why can you only change one variable in an experiment?

[Done] What are three ways that magma can form?

[Done] The atomic mass of an element is 32.07 u and its atomic number is 16. The number of protons contained in the nucleus of an atom of this element is: A. 16 B. 31 C. 32 D. 48

[Done] Which sample of nitrogen gas at STP occupies the largest volume? A. 14 liters B. 14 moles C. 14 grams D. \(1.4 \times 10^{24}\) molecules E. \(4.2 \times 10^{24}\) molecules

[Done] Given: [tex] Z = 0.43Y + 12 [/tex] What is [tex] Y [/tex] when [tex] Z = 28 [/tex]?

[Done] Isaac read that 32% of people owned dogs. What fraction of people owned dogs?