4 Please answer the following question according to the Law of Conservation of Matter: Sam mixes 40 grams of backing soda with 20 grams of vinegar to produce a chemical change. After the chemical reaction happens, Sam is left with a clear liquid that has a mass of 50 grams and a gas that has a mass of
_.

Which pattern most likely came from a gunshot and which one was produced from a blow on the head? explain your answer?

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function