Chemistry Precision and Design Test 4

Front

What does stoichiometry include?

Back

Chemical reactions, Classify reactions, Quantitative relationships of chemical reactions

Front

Define chemical reactions: ______ changes caused by collisions between atoms or molecules.

Back

Chemical

Front

What was Dalton’s proposed atomic theory?

Back

Atoms are not created or destroyed in chemical reactions, only rearranged

Front

Law of Conservation of Mass

Back

The sum of the masses of the products is always equal to the sum of the reactants

Front

Describe a decomposition reaction: This is the reverse of a combination reaction, a decomposition reaction involves the breakdown of a single reactant into two or more simpler substances. True or False?

Back

True

Front

Which of the following is not a step in solving a chemical reaction problem? A) Write a balanced equation, B) Convert moles to mass, C) Use mole ratios, D) Measure temperature

Back

Measure temperature

Front

Fill in the blank: Using mole ratios from the balanced equation helps to convert moles of given substance to moles of substance ____.

Back

requested

Front

The process of converting moles back to mass units is important for determining the ____ of a substance.

Back

weight

Front

What is the importance of converting given mass amounts to moles?

Back

To use mole ratios

Front

Which of the following is an example of a synthesis reaction? A) A + B → AB, B) AB → A + B, C) A+ BC → B + AC, D) AB + CD → AD + CB

Back

A + B → AB