Which of the following elements have properties similar to those of strontium (Sr)

A: Y, Zr, Nb

B: Sb, Te, I

C: F, Br, I

D: Be, Mg, Ca

Calculate the mole fraction of cai2 in an aqueous solution prepared by dissolving 0.400 moles of cai2 in 850.0 g of water.

If 11.7 g of aluminum reacts with 37.2 g of copper (II) sulfate according to the following reaction, how many grams of aluminum sulfate will be produced?

Express the product of 5.4 mm and 6.02 mm using the correct number of significant digits. a. 32 mm^2 b. 33 mm^2 c. 32.5 mm^2 d. 32.51 mm^2

Various properties of a liquid are recorded during an experiment. the volume of the liquid is measured to be 25.5 milliliters. the density of the liquid is found to be 1.76 g/ml. the liquid is blue in color.

Know how you would determine the percent yield of a reaction if you have the given amount of the reactants and the amount of the product actually collected in the lab.

As the average kinetic energy of the particles in a gas increases, which of the following occurs? The temperature of the gas increases. The temperature of the gas decreases. The number of particles increases. The number of particles decreases.

What is the type of strong chemical bond between carbon, hydrogen, and oxygen atoms in a single organic molecule?

0.100 mol of CaCO3 and 0.100 mol CaO are placed in an 10.0 L evacuated container and heated to 385 K. When equilibrium is reached the pressure of CO2 is 0.220 atm. 0.

What is true about the charges of transition metal ions?

A gas obeys the ideal-gas equation of state P V = N k T, where N = n NA is the number of molecules in the volume V at pressure P and temperature T and n is the number of gm-moles of the gas.