If a sample of copper is 3.3g, how many moles of copper atoms is there in the sample?

Hydrogen is an exception to the octet rule. This is because:

Show whether the following solutes are soluble in each solvent, and the process of dissolution of each, and their weak bonds. (NH4) 3 PO4 in water Ag Cl in water Methane (CH4) in water Methane in gasoline (C8H18) Methyl alcohol (CH3-OH) in water

If one atom of potassium and one atom of chlorine form an ionic bond, what are the charges of the two ions? A. K + 1, Cl - 1 B. K - 1, Cl + 1 C. K + 2, Cl - 2 D. K - 2, Cl + 2

For which of the following disease is there a vaccine? a. malaria c. encephalitis b. yellow fever d. cholera Why might global warming cause the spread of diseases caused by insects? a.

1. CaSO4 (s) ⇋ Ca2 + (aq) + SO42 - (aq) When Na2SO4 is added to the system, how will the equilibrium shift? A) The system will shift left and the amount of CaSO4 would increase. B) The system will shift left and the amount of CaSO4 would decrease.

Which of the following is an example of an endothermic process? condensation evaporation burning freezing

Which of the following is the correct formula for copper (1) sulfate trihydrate? o Cu 250 4.3H 20 o CuSO 4 - 3H 20 o Cu 250 4 (H 20) 3 CusO 4 (H 2013

Discuss the advantages and disadvantages of using hydropower for large-scale energy production.

Is the following is a correct statement of Charless Law? The volume of a gas varies directly with the absolute temperature under the conditions of constant pressure.

Why do you need blood?