If a copper atom loses two electrons, the name of the copper ion is

Dialysis is used to purify blood, sea water, and polluted drinking water. true or false?

The distance from Earth to the Moon is approximately 240.000 mi Part C The speed of light is 3.00 x 10 m/s How long does it take for light to travel from Earth to the Moon and back again? Express your answer using two significant figures.

The label on a tub of margarine states that 100 g of the margarine contains 0·70 g of sodium. The sodium is present as sodium chloride. Calculate the mass of sodium chloride, in grams, present in a 10 g portion of the margarine.

Which element is most like magnesium? A) S B) Sr C) Sn D) Si

How would you prepare 500 ml of a 0.2% solution of the detergent Tween-20? This reagent is a liquid in its pure state.

The nucleotides I-131 and I-133 are classified as?

Is electrical conductivity an extensive property or an intensive property?

Determine the oxidation state of the metal ion in [cr (h2o) 6]3+.

Which of the following would most likely contain a fossil?

Which carbon atom has the most partial positive character?