I cant remember my mass, grams, and volume. and how to divide density

Why is it important for a soil to have air spaces?

Ag2O (s) → 2Ag (s) + ½ O2 (g) ΔH° = 31.05 kJ Which statements concerning the reaction above are true? (1) heat is released (2) heat is absorbed (3) reaction is exothermic (4) reaction is endothermic (5) products have higher enthalpy content than

How many grams of h2 are needed to react with 48 grams of o2, given the reaction: 2 h2 (g) + o2 (g) - - > 2 h2o (l) ?

What is the first step in the two step process of making a solution is the breakdown of the solute source into a. Atoms b. Molecules c. Ions d. Atomic particles

One molecule of the antibiotic known as penicillin g has a mass of 5.553*10-22g. what is the molar mass of penicillin g?

The law of conservation of energy states that momentum is conserved in a collision.

Examples of energy being used around your class room

Suppose the average concentration of copper in water is measured to be 2.5 x 10" M. a. Express this concentration in mg/L. b. Express this concentration in ug/L. c.

Which of these measurements could be the pressure of a gas? O 725K 725 mmHg 725 grams 725 meters

Propane gas (C3H8) is combusted at a constant temperature and pressure. If 34.35L of propane react, what volume of oxygen is required? What volume of carbon dioxide is produced?