stoichiometry practice 2
for each of the problems below:
a. write the balanced chemical equation.
b. identify the given (with units) and what you want to find (with units).
c. show set up with units. check work, give final answer with units and label.
1. using the hoffman apparatus for electrolysis, a chemist decomposes 36 g of water
into its gaseous elements. how many grams of hydrogen gas should she get
(theoretical yield)?
bal. equation:
ven: 3log of water
ant;

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Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

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.