Consider the following balanced reaction:

4NH3 (g) + 502 (g) - 4NO (g) + 6H20 (g)

How many grams of ammonia are required to react completely with 40 g of oxygen?

A. 154

B.

179

C. 34 g

D.

19 g

How do you make clorifil?

A bomb calorimeter has a heat capacity of 2.47 kj/k. when a 0.105-g sample of ethylene (c2h4) was burned in this calorimeter, the temperature increased by 2.14 k. calculate the energy of combustion for one mole of ethylene. a. - 0.259 kj/mol b. - 50.

What is the name of the scientist who discovered that atoms have positive charges

Why are mass and weight not the same thing?

A neutralization reaction between koh (aq) and h2so4 (aq) would give which two products?

A sample of air has a volume of 140.0 mL at 67C. To w hat temperature must the gas be lowered to reduce its volume to 50.0 mL at constant pressure?

Consider the following equilibrium reaction having gaseous reactants and products. 4HCl + O2 ⇌ 2H2O + Cl2 Which of the following would result from increasing only the concentration of hydrochloric acid? The concentration of oxygen increases.

What type of temperature changes produce large crystals

An evaluation of R was performed, following the procedure described in this module. The barometric pressure was 736 torr, the temperature was 295k and volume of hydrogen gas collected was 35.6 mL. The calculated value of R was 82.1 mL atm K-1 mol-1.

If all living systems, not plants, have blood; then why do blood types matter?