MARKING BRAINLIEST Think about the fact that water is most dense at 4°C, and the fact that ice is much less dense than water.

a. What would happen to a lake or a pond in the winter (in a cold climate) if this wasn’t the

case?

b. What if the water continued to contract, and the solid form (ice) was more dense than liquid

water?

c. How would this affect the life in the lake

please answer all

Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas.in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point

What is the mass of sodium in 3 moles of sodium chloride

Identify two types of chemical bonding in the source of dietary potassium