Humans have used rocks in the creation of tools and building materials true or flase

What kind of charge would the hydrogen atoms have compared to the oxygen atom in the water molecule? Note: A water molecule 2 hydrogen atoms and one oxygen atom.

If the molar mass of calcium hydroxide (Ca (OH) 2) is 74.1 g/mol, how many grams of calcium hydroxide are required to prepare 2.00 liters of 0.60 M calcium hydroxide

What are the limitations of litmus paper and phenolphthalein indicators? Name two other indicators that can be used that do not have such limitations.

Which solution contains the largest number of moles of chloride ions? a. 30.00 ml of 0.100m cacl2 b. 10.0 ml of 0.500m bacl2 c. 25.00 ml of 0.400m kcl d. 4.00 ml of 1.000m nacl e. 7.50 ml of 0.500m fecl3?

What size container should you use when mixing chemicals

Why does it take a large truck longer to stop than a compact car, even though both are traveling at the same velocity?

Sub atomic particle mass

Protons electrons Neutrons Atomic Moss Atomic Number

Calculate the molality of C2H5OH in a water solution that is prepared by mixing 50.0 mL of C2H5OH with 112.7 mL of H2O at 20°C. The density of the C2H5OH is 0.789 g/mL at 20°C. (Assume the density of water at this temperature is 1.00 g/mL.)

All man-made and most carbon-based compunds are