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Questions in chemistry

📝 Answered - Which elements need to lose one electron to form a stable octet? A. Alkali metals B. Alkaline earth metals C. Noble gases D. Lanthanides

📝 Answered - If the substances below, which is best able to conduct electricity? a. KBr(l) b. NaC₂H₃O₂(s) c. C₆H₁₂O₆(aq) d. CH₃OH(aq) e. NaCl(s)

📝 Answered - The atomic mass of an element is 32.07 u, and its atomic number is 16. The element forms a simple ion. The ion will most likely have a charge of: A. 1– B. 2– C. 3+ D. 1+

📝 Answered - Calculate the number of moles for each of the following: 1. 9.00 g of H\(_2\)O 2. 88.0 g of CO\(_2\) 3. 1.70 g of NH\(_3\)

📝 Answered - How much of each gas is there in 100 cm³ of air?

📝 Answered - 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?

📝 Answered - When atoms react, they form a chemical bond. What is a chemical bond defined as?

📝 Answered - 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.

📝 Answered - Why can you only change one variable in an experiment?

📝 Answered - What are three ways that magma can form?