What is a correct expression of the law of conservation mass

1. What does the - ite or - ate ending in a polyatomic ion mean? a. Oxygen is in the formula. b. Sulfur is in the formula. c. Nitrogen is in the formula. d. Bromine is in the formula. 2. Which of the following is the corect name for N2O5? a.

A scientist told his student assistants that he had sorted groups of mice by their intelligence and asked the assistants to assess the groups' maze-solving abilities. The scientist had not actually sorted the mice by intelligence.

A balloon that had a volume of 3.50 L at 25.0°C is placed in a hot room at 40.0°C. If the pressure remains constant at 1.00 atm, what is the new volume of the balloon in the hot room?

Describe your observations of the original solutions. Describe your observations when the silver nitrate was added to the sodium chloride solution.

Sole the equation: 5x + 4 = 3x + 8

Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.0 L of water upon warming from 25 ∘C to 50 ∘C.

Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of water molecules are included in the solid structure.

When you light a fire place what energy transformation takes place

Correctly identify the generic formula for a synthesis reaction. a. AB + A+B b. A+B → AB c. CxHx + O2 → CO2 + H2O d. AB + C + AC + B e. AB + CD → AD + CB

Zinc phosphide, Zn3P2, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?