Which term describes a rock that formed from cooling molten rock

Which of the following is a velocity? A) 30 m/s (meters per second) B) 30 m/s (meters per second) going down C) 30 km/s (kilometers per second)

What is the formula for the ionic compound formed from the lead (ii) ion and the carbonate ion?

Which method did dalton use to develop his atomic theory?

Explain why elements in the same group of the periodic table have similar chemical properties

Valency of Chlorine is 1. Why?

Name two ways that living things use proteins

Solid lithium metal and diatomic fluorine gas react spontaneously to form a solid product. give the balanced chemical equation (including phases) that describes this reaction.

What is the best way to transform a chemical potential energy into internal kinetic energy?

A reaction starts with 20.0 grams of lithium hydroxide (LiOH) and produces 31.0 grams of lithium chloride (LiCl), what is the percent yield of lithium chloride (LiCl) ? * LiOH + KCl - LiCl + KOH A) 64.5% B) 88.6% C) 81.5% D) 92.8%

You aren't sure if your pH meter needs to be calibrated, so you put it in a buffer solution that has a known pH of 7. You take four separate readings of the solution with the pH meter. The meter reports the pH as 5.5, 8.6, 6.3, and 9.4.