Which is the correct number of valence electrons in the element sulfur (s) ?

What is the change in electrons for nitrogen in the following reaction? S + NO3 - - > SO2 + NO A. Gain 2 electrons B. Gain 3 electrons C. Lose 2 electrons D. Lose 3 electrons

For a solution with an [oh-] of 10-8 m, what would be the value of [h+], ph and poh, respectively? 1. 106 m, 6, 8 2. 10-6 m, 6, 8 3. 10-6 m, 8, 6 4. 10-14 m, 6, 8 5. 10-6 m, 6, 14 6. 10-14 m, 8, 6

Which of the following must crystalline solids have? A. Carbonates B. Cubic structures C. Orderly arrangement of atoms D. Cleavage

Passing of traits from parents to offspring is called

What would be the product (s) of the reaction between aqueous HCl and solid Ca? a. CaH2 + Cl2 b. CaCl2 c. H2+CaCl2 d. H + CaCl

Which of the following is an incorrect way of rearranging the density formula: a. m=v•d b. V=d/m c. V=m/d d. Both a and b are incorrect

Describe how the periodic table differentiates between metals and nonmetals. I need a very informative description/explanation on this.

When the ideal gas law is arranged as shown below, what property of the gas is being solved for (represented by the X) ? x equals PV over nR

Which element could chlorine bond with to form an ionic compound? helium oxygen fluorine sodium

A scientist conducted one trial experiment and got unexpected results. how can the scientist increase confidence in the results