Answer:
4
Explanation:
water starts to boil into water vapor at 100'C. at this point, temperature becomes costant at 100'C as heat energy is used up by the particles to overcome the intermolecular forces between the molecules.
once the forces holding the particles together have been overcome, the temperature will start to rise again showing that all the liquid water has been converted into water vapor
Rays having a wavelength greater than 400 nm (such as visible, infrared, radio waves, etc.) do not cause damage to the cell.
Ultraviolet (UV) radiation is electromagnetic radiation with a wavelength between 100 and 400 nm.
Ionizing radiation such as X and gamma rays also have a small wavelength (less than that of UV rays), and can penetrate the cell and cause damage to the cell.
Answer:
2.843 M
Explanation:
Molarity = moles / volume
<u>Milliliters to liters:</u>
500 mL <u>= .500 L</u>
<u>Grams to moles:</u>
MgO molar mass = 16.00 + 24.31 = 40.31 g/mol
57.3 g x 1 mol / 40.31 g = <u>1.421 mol</u>
<u>Molarity:</u>
1.421 mol / .500 L = 2.843 M