Which of the following steps can be used to identify a double replacement reaction? (5 points) O Check whether the products are salt and water.
O Check whether the reactants are an acid and a base.
O Check if the lons of two compounds exchange places.
O Check if one element replaces another element in a compound.

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.