Which of the following substances does carbon change into in plants during photosynthesis? A. Chlorophyll B. Sugar C. Sunlight D. Water

Which part of helium atom is positively charged

9.03g of magnesium combine completely with 4.30g of nitrogen

Ammonia, NH3, is produced by the reaction N2 (g) + 3H2 (g) → 2NH3 (g). if 3.50 mol of nitrogen is present, what volume of NH3 at 25.0°C and 1.15atm of pressure can be made? a 0.312 L b 74.5 L c 157 L d 149 L

A the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at the bottom of the hill? Ignore the effects of friction.

Under the Implied Consent law, which of the following is true? A. Your driving privileges will be suspended if you refuse a chemical test to measure your alcohol level. B.

You have arrived on a planet where S2, not O2, is the gas used as fuel in combustion reactions. When gaseous propane (C3H8) is burned in S2, H2S and carbon disulfide gases are produced. If 200.0 grams of propane and 75.

What are not chemical properties of matter?!

Calculate the mass of water produced when 2.06 g of butane reacts with excess oxygen.

What describes color and streak?

What is a group of specialized cells called when they work together to perform a specific function?