What is mass?

A. the amount of matter in a substance

B. the amount of weight in a substance

C. the number of atoms in a substance

D. the amount of volume of a substance

What is the relation between celsius and kelvin?

Cuales eran los objetos fundamentales de los alquimistas?

What was one complication caused by the tsunami that struck Japan in 2011? A) Violent shaking destroyed roads. B) Massive flooding destroyed the water mains. C) It damaged a nuclear reactor. D) It broke through electrical wires.

Beryllium chlorite is formed when a beryllium cation with charge 2 + combines with a chlorite ion with charge 1-. How will you derive the formula for beryllium chlorite?

Select the correct answer. The chemical composition of most stars usually has which element in the highest concentration? A. oxygen B. hydrogen OC. chromium OD. lead

A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independently and is fully excited and thus cv=3NAkB=24.9 kJ / (kmol⋅K). This is called the law of Dulong and Petit.

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.

Carbon dating advisable for measuring materials ages for a few years, thousands of years, millions of years