Ms Ps1 6

Front

Is this endothermic or exothermic?

Back

exothermic

Front

Is this endothermic or exothermic?

Back

endothermic

Front

Is this endothermic or exothermic?

Back

endothermic

Front

When solid sodium bicarbonate was added to citric acid solution, the temperature decreased from 22°C to 10°C. Which description accurately models what happened? Options: reactants + energy --> products, reactants --> products + energy, reactants + products = energy, reactants --> energy

Back

reactants + energy --> products

Front

What is the best evidence that a glow stick's reaction is exothermic?

Back

light and small amounts of heat are given off

Front

Which is true for the citric acid solution?

Back

more energy is absorbed

Front

What is true for the sodium bicarbonate solution?

Back

More energy is released.

Front

A chemical reaction in which more energy is released when the products form than is required to break the bonds in the reactants.

Back

exothermic reaction

Front

During a chemical reaction, energy can get destroyed.

Back

False

Front

During a chemical reaction, energy can get created.

Back

False