Author: Anonymous

Which of the following strains of influenza are the most common human flu viruses?

What is the name of the organic compound that has the following molecular formula C9H20?

What is the effect of an increase in temperature for an exothermic reaction at equilibrium?

Benzene is a liquid that has long been present in gasoline as 1% of the fuel despite its toxicity. It makes the fuel burn more smoothly with less engine knock. The balanced equation for the complete combustion of benzene, C6H6, is which of these? HINT: Balance it on paper it before letting these answers confuse you.

In the following equation involving gases, how many liters of PH3 gas can be produced if 27.7 L of H2 gas are used?                 P(s)    +  3 H2(g)   à  2 PH3(g)

CaCl2 is an example of a(n):

Ammonia is prepared by reacting nitrogen and hydrogen gases at high temperature according to the unbalanced chemical equation below. __ N2(g) + __ H2(g) –> __ NH3(g) What are the respective coefficients when the equation is balanced with the smallest whole numbers?

A 22.4 L sample of nitrogen at 5.80 atm and 25.0°C is simultaneously expanded to 63.2 L and heated to 33.0°C. What is the new pressure of the gas?

If 15 g of butene (C4H8) is reacted with excess hydrogen to produce butane (C4H10) according to the following reaction and 11 g of butane is produced, what is the percent yield?                         C4H8 + H2 –> C4H10

Rubbing a balloon on your hair causes electrons to move from your hair to the balloon, and your hair