According to the octet rule most elements need_valence electrons.

Name two liquids that were acidic and their approximate pH's. Name two that were basic and their approximate pH's. 4. What were the most neutral 2 or 3 liquids? 5.

What determines density?

How much heat is required to melt 123.0g of ice

Beth's hygrometer is reading a temperature of 30°C and a relative humidity of 65%. The humidity in the air is how many grams/cubic meter.

Which correctly describes the laws of conservation? A. Mass is not conserved in a chemical reaction. B. Energy is not conserved in a nuclear reaction. C. Mass is conserved in a nuclear reaction. D. Energy is not conserved in a chemical reaction.

Why do airbags fill evenly with gases?

In which of the following reactions will Kc = Kp? In which of the following reactions will Kc = Kp? (A) SO3 (g) + NO (g) ↔ SO2 (g) + NO2 (g) (B) 2 N2 (g) + O2 (g) ↔ 2 N2O (g) (C) 4 NH3 (g) + 3 O2 (g) ↔ 2 N2 (g) + 6 H2O (g) (D) 2 SO2 (g) + O2 (g) ↔ 2

Which tool is most suitable for a chemist to measure the mass of a liquid

What is the equation adheres to the law of conservation of matter

What ironic contrast does Vonnegut include in this scene? George tells his wife to forget sad things, but readers would expect George and Hazel to want to remember their son.