Solid magnesium (Mg) is easier to cut than solid potassium (K). true or false?:

Calculate the concentration of chloride ions when 100.0 mL of 0.233 M sodium chloride is mixed with 250.0 mL of 0.150 M calcium chloride.

What energy transformations occur when using a curling iron?

Which of the quantum numbers relate (s) to the electron only? Which relate (s) to the orbital?

Experimental data have shown that the rate law for the reaction 2 hgcl2 (aq) + c2o4 2 - (aq) → 2 cl - (aq) + 2 co2 (g) + hg2cl2 (s) is: rate =

1. Which of the following choices demonstrates the law of constant composition? (Slides 2 - 3: Laws on Matter) (a) Nitrogen and oxygen are both found in nature as diatomic molecules. (b) When 20.0 g of nitrogen and 32.

What is the molality if 734 mol of lithium sulfate are dissolved to make 2500 kg of solution. a) 0.59 b) 0.29 c) 293.6 d) 29.4

Since the number of atoms in a substance is so large, a unit to count them was created. This unit is the number of atoms in 12 grams of carbon-12 known as

A disadvantage of sexual reproduction is that

A beaker contains 500 ml of 2.40M KNO3 the beaker is left uncovered so that all of the water evaporates. What mass of KNO3 crystals will remain in the beaker when the beaker is dry.

What are group 6a elements likely to do when they form ions-gain electrons or lose them? what are group 6a elements likely to do when they form ions-gain electrons or lose them? lose electronsgain electrons?