How many grams of butane must be reacted to release 15,285 kj of heat

What is reproductive structures found in fungi and simple plants called

Ice melting, water boiling, lighting a match, grape juice freezing. Which statement describes evidence of a chemical reaction

The atomic mass of carbon is 12.01, hydrogen is 1.01, and oxygen is 16.00. What is the molar mass of glucose (C6H12O6) ?

Acetone, the solvent in nail polish removers, has a density of 00.791 g/ml. what is the volume, in ml, of 25.0 g of acetone? a. 19.8 ml b. 31.6 ml c. 24 ... 2 ml d. 25.791 ml

A chemist requires 3.0 liters of 0.12 M H2SO4 solution. How many grams of H. SO4 should the chemist dissolve in the water?

Common properties of sodium, calcium, iron, and gold

The closeness of a measurement to its actual value is a measure of its A. usefulness. B. reproducibility. C. precision. D. accuracy.

At 300 k the pressure inside a gas filled container is 500 kPa if the pressure inside decreses to 100kpa but the volume remains the same what is the final temperature of the gas

The SI unit for current is: joules volts ohms amps

In chemical reactions, there is a conservation of what?