What gases do we exhale?

Write the balanced equation, then outline the steps necessary to determine the information requested in each of the following: (a) The number of moles and the mass of chlorine, Cl2, required to react with 10.

An acid solution has a pH value of 5. Which of these statements correctly describes the acid? a It is a dilute acid b It is a weak acid c It is a strong acid d There is not enough information to determine strength or concentration.

How are elements in the nitrogen family (group 15) similar to each other

Explain why your hair sticks to a plastic (polyethylene) comb.

Calculate the mass of NaCl in a 35-mL sample of a 1.3 M NaCl solution.

A chemical is placed in a beaker containing 20 g of soil and 500 mL of water. At equilibrium, the chemical is found in the soil ast a concentration of 100 mg. kg-1 of soil.

A solid reactant is placed into a beaker of warm water. The liquid vigorously bubbles as the soild dissolves into the solution. What will most likely happen if the temperature of the liquid is slightly reduced

How does the space between atoms change as agas goes through prase changes to become a soild? how. do they different? use words to describe

What is an endothermic reaction? O A. A reaction that produces heat O B. A reaction that uses radiation waves C. A reaction that absorbs heat O D. A reaction that contains enthalpy

How does the conservation of matter relate to balancing equations?