Question

how is weight different from mass?
weight changes depending on gravity, mass stays constant throughout the universe.
weight is measured in grams, mass is measured in newtons.
weight can be converted to energy, mass cannot.
weight is measured with a scale, mass is measured with a triple - beam balance.

sodium and chlorine combine to form sodium chloride, or table salt. sodium and chlorine are:
precipitates
products
reactionaries
reactants

sodium and chlorine combine to form sodium chloride, or table salt. sodium chloride is the:
originator
reactant
product
producer

Explanation:

1. Mass is a measure of the amount of matter in an object and remains constant throughout the universe. Weight is the force exerted on an object due to gravity and changes depending on the gravitational field. So the correct answer for the weight - mass question is that weight changes depending on gravity, mass stays constant throughout the universe.
2. In a chemical reaction where sodium and chlorine combine to form sodium chloride, sodium and chlorine are the starting substances, which are called reactants.
3. When sodium and chlorine react to form sodium chloride, sodium chloride is the substance that is produced as a result of the reaction, which is called the product.

Answer:

1. Weight changes depending on gravity, mass stays constant throughout the universe.
2. Reactants
3. Product