The part that includes land and water

The development of which polymer enabled the British to have effective radar equipment and thus contributed to the British success in the Battle of Britain in World War II? A) polystyrene B) polyvinyl chloride C) polyacetylene D) polyethylene

How to solve a chemistry problem?

Select all the correct answers. A pot of water is heated over a fire, and then frozen peas are added to the hot water. What happens to the energy in this situation? The energy gained by the peas is lost by the water.

Which of the following is the greatest mass? a. 2.3 x 10^9 pg b. 1.5 x 10^8 np c. 6.6 x 10^5 ug d. 8.4 x 10^2 mg e. 3.0 x 10^-1 g

Calculate the amount that the vapor pressure is decreased when 136 g of C12H22O11 (molar mass = 342.296 g mol - 1) is dissolved in 100.0 g of water at 29 ◦ C. The vapor pressure of water at this temperature is 30.0 torr.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda