Help me
1.Imagine that you used a deck of 52 cards to create a house of cards. The house of cards weighs 96 grams. If the house of cards falls down, how much will the pile of cards weigh?
2.Mixing cream and vinegar is an example of a ________ because new substances are formed. The weight of the mixture ________ during the course of the reaction.
3.A pile of wood is burned in a campfire and produces ash. The ash has less mass than the original wood. What can you predict about the chemical reaction that forms ash from wood?
4.A chemical reaction changes the _______ of a substance.
5.How does changing the reactants of a chemical reaction affect the products?
6.Which of the following situations are an example of an object experiencing both a physical change in color followed by a physical change in texture?
7.You are told an object has undergone a physical change. What prediction can you make about how the object has changed?
8.Which of the following describes a chemical change?
9.To make a smoothie, Moira added 320 grams of water to 80 grams of oatmeal, 100 grams of mango, and some protein powder. If the smoothie weighed 520 grams, how much protein powder did she add?
10.If you are following the recipe for a cake, how will the order in which you add the ingredients affect the mass of the batter?
3 answers
1 answer