8.1.6 Review Question Preview (ID: 49285)


Utah 8.1.6 Law Of Conservation Of Mass. TEACHERS: click here for quick copy question ID numbers.

When you burn a log what happens to the matter?
a) The matter disappears forever when it burns
b) The matter turns into different types of matter, but the amount stays the same
c) The amount of matter increases
d) The matter turns into nothing

A student mixes 100g of baking soda and 20g of vinager. What is the total resulting mass?
a) 120g
b) more than 120g
c) less than 120g
d) 240g

How many Hs in H2O.
a) 6
b) 4
c) 2
d) 1

The reactants is:
a) The ingredients
b) The products
c) What is made
d)

How many molecules are in 4CO
a) 1
b) 2
c) 3
d) 4

A + B --) C I you start with 3 and 5 of reactants A and B and they react to make product C. How many grams of product is there going to be?
a) Exactly 8 grams
b) More than 8 grams
c) There is no way to know
d) Less than 8 grams

Are the reactants before or after the arrow in a chemical equation?
a) Before
b) After
c)
d)

Are the products before or after the arrow in a chemical equation?
a) Before
b) After
c)
d)

What are the products?
a) What is made in a chemical reaction
b) The ingrediants to a chemical reaction
c) what is left behind
d)

What is the Law of conservation of mass?
a) The mass of the reactants equals the mass of the products.
b) The mass of the reactans equal the sum of the reactants and the products.
c) The mass of the reactants does not equal the mass of the products
d)

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