This passage describes a chemical reaction. Read the passage. Then, follow the instructions below.
The Space Shuttle program sent astronauts on 135 missions using a fleet of five
shuttles between 1981 and 2011. The engines of each shuttle, like other modern
rocket engines, used liquid hydrogen as fuel. When liquid hydrogen combines with
liquid oxygen, an enormous amount of energy is released, along with water vapor.
The shuttles used this energy to launch into space.
Complete the sentence.
In this chemical reaction, oxygen is a
reactant
product
PLEASE HELP

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?