A sample of hydrated magnesium sulfate has a mass of 4.052 g. After it is heated, it has a mass of 1.979 g. What is the percentage by mass of water in the hydrate?

A liquid has a volume of 4ml and a mass of 24 grams. What is the density of the liquid?

A laboratory technician drops a 0.0850 kg sample of unknown material, at a temperature of 100.0∘C, into a calorimeter. The calorimeter can, initially at 19.0∘C, is made of 0.150 kg of copper and contains 0.200 kg of water.

What happens to the arrangement of water molecules as ice melts?

Which of the following is a product in the following reaction (glucose+fructose->sucrose + H2o/water)

Which is a base unit in SI? A. centimeter B. kilogram C. gram D. grams/milliliter

Collagen is made of fibers and is found in tendons and cartilage. Collagen contributes to meat toughness and is, therefore, an example of which type of protein?

1. Why does CH30 evaporate faster than water?

How does concentration affect our daily lives in science?

How many nitrogen atoms are in 2.79 mo. of NH3

What is the chemical formula for polysaccharide?