Balance the following equations:

__CuS2 + HNO3 →

__Cu (NO3) 2 + __H2SO4 +

__N2O + ___H20

What category do the majority of elements fall into?

Which of these statements best describes how an increase in the amount of Sun's heat reflected by the Earth's surface and atmosphere contributes to global climate change? It makes the Earth warmer. It makes the Earth cooler.

How many kilograms are in 6.983 moles of baking soda (NaCHO3) ?

How far up can a 200 N elevator be lifted with 600 j of energy

n Part B, suppose the tablet was mostly dissolved when some of your solution splashed out of the beaker as CO2 continued to evolve.

Conversion. 5 km to inches

How many kilojouls are required at 0c to melt an ice cube with a mass of 25g

Which substance is the oxidizing agent in this reaction? 2CuO+C→2Cu+CO2 Express your answer as a chemical formula.

Why does the light bulbs have to be part of the loop in order for it to be succesful?

Which best describes the transition from gas to liquid? Energy must be removed because particles in liquid move more slowly. Energy must be added because particles in liquid move more quickly.