Which statement describes a chemical change? 1. alcohol evaporates. 2. water vapor forms snowflakes. 3. table salt (nacl) is crushed into powder. 4. glucose (c6h12o6) and oxygen produce co2 and h2o.

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Particles vibrate in a rigid structure and do not move relative to their neighbors.

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.