Law of Conservation of Mass ) Math problems

Front

A student mixes 125 grams of sugar, 250 grams of water and 5 grams of flavoring. The solution weighs...

Back

380 grams

Front

If reaction starts with 20g of reactants, it should produce?

Back

a total of 20g of products

Front

What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?

Back

They both will weigh the same

Front

This type of system allows matter to flow freely in and out...

Back

Open System

Front

Bob puts 200 grams of ice into a pitcher with 900 grams of water. How many grams of water does Bob now have in the pitcher?

Back

1,100 g

Front

24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride

Back

62 

Front

Jason poured 500 grams of water into a container and tightly sealed it. The water was allowed to freeze. Which is most likely true about the ice that formed? Options: The mass of the ice is the same as the mass of the water., The mass of the ice is greater than the mass of the water., The ice formed is a different substance than the water., The ice formed is the same temperature as the water.

Back

The mass of the ice is the same as the mass of the water.

Front

Mass of water and baking soda solution when 0.25 grams of baking soda is added to 5 grams of water and dissolved.

Back

5.25 grams

Front

What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete? Options: They both will weigh the same, The product always weighs more than the reactant, The reactant will weigh more than the product, They both will lose mass after the reaction.

Back

They both will weigh the same

Front

Thomas has 1,200 g of salt water. What are the correct measures of salt and water before they were mixed?

Back

600 g of salt and 600 g of water