Hydrazine, N2H4 , reacts with dinitrogen tetroxide, N204.

2 N HAO + N20(g) — 4 H20 (1) + 3 N, (g)

When 0.10 mol of hydrazone reacts with 0.10 mole of dinitrogen tetroxide, which of the following
quantities would be consumed or produced?

Select one:
a. 0.05 mol N204
b.0.40 mol H2O
C. 0.39 mol N2
d. 0.10 mol N204

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.