Evaluate Chemical Reactions lab background

What are some evidence for a chemical change?

• Release of a gas

• Change in temperature

• Formation of a solid

• Change in pressure

What does any chemical change involve?

• Reorganization of the atoms in one or more substances

• Formation of new atoms

• Destruction of existing atoms

• No change in the arrangement of atoms

What is involved in chemical reactions?

• Combining matter to produce new matter

• Breaking apart matter to produce new matter

• Changing the properties of matter

• All of the above

What information do chemical equations provide?

• Reactants only

• Products only

• Reactants, products, and their relative numbers

• Reactants and products but not their relative numbers

What are the different state symbols used to represent solids, liquids, gases, and aqueous solutions in chemical equations?

• S, L, G, Aq

• A, B, C, D

• X, Y, Z, W

• P, Q, R, S

What do state symbols in chemical equations indicate?

• Temperature of substances

• Physical states of substances

• Chemical reactivity of substances

• Atomic number of substances

What type of reaction involves multiple substances combining to form a single product?

• Decomposition reaction

• Combustion reaction

• Synthesis reaction

• Single displacement reaction

Which category of chemical reactions involves the combination of two or more substances to form a new compound?

• Synthesis

• Decomposition

• Single replacement

• Double replacement

What type of reactions involve a single reactant breaking down into multiple products?

• Synthesis reactions

• Decomposition reactions

• Combustion reactions

• Replacement reactions

What are some examples of specific characteristics and outcomes of chemical reactions?

• Single replacement, double replacement, and combustion reactions

• Ionic and covalent bonds

• Photosynthesis and respiration

• Acids and bases