What is the term for the property of a substance that cannot be observed without changing its chemical formula?    A.) chemical property    B.) physical property    C.) molecular property    D.) atomic property    E.) none of the above

7. Determine the type of compound (molecular, ionic, or acid) described below. Some may have more than one answer. See the table in the Introduction. a) Has high melting and boiling points b) Conducts electricity in the aqueous state pentachiorid c) Composed of metallic and nonmetallic atoms

Describe the characteristics of a mixture.

Hi, my question is about the law of conservation of mass. Do not answer the question in the picture. Instead, answer the sub-questions listed below. Thanks.- Does the total mass of the reactants and the total mass of the products appear to be equal after chemical reaction or not? Why? - Why is it that you always end up with less paraffin wax after burning the candle than when you started it?