What is formed when atoms share one or more pairs of electrons

What is the density of fluorine gas, F2, at STP? E) 0.848 g/L B) 1.18 g / L C) 1.70 g/L D) 0.589 g/L

The oh - concentration in a 1.0  10-3 m ba (oh) 2 solution is

7. List things that have LOTS of kinetic energy, and tell why.

Which substance is oxidized and which is reduced in this reaction? Cl2 + 2HBr → 2HCl + Br2 A) HBr oxidized; HCl reduced B) HCl oxidized; Cl2 reduced C) Br2 oxidized; HBr reduced D) Cl2 and Br2 oxidized; HBr reduced

Which process represents one chemical change and one physical change?

Thorium-229 is a highly radioactive isotope. Use the chart to determine the half-life of Th-229. A) 7,340 years B) 8 years C) 16 years D) 22,020 years

Which of the following is true about a municipal bond with a put option? (A) An investor will exercise the option to put the bond if yields rise significantly. (B) An investor must have the issuer's permission to put the bond.

A certain ore is 37.3% nickel by mass how many kilograms of this ore would you need to dig up to have 10.0g of nickel

What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in 1.00 L of 0.500 M NH4NO2 decomposes at 25.0°C?

Read the given equation. Na2O2 + CO2 → Na2CO3 + O2 What volume of O2 gas is produced from 2.80 liters of CO2 at STP?