Which of the following is an organic compound? ammonia (NH3) calcium sulfide (CaS) octane (C8H18) sulfur trioxide (SO3)

What device changes mechanical energy into electrical energy? Question 4 options: transformer generator copper wire light switch

If 2.0 moles of a substance are dissolved in 2.0 liters of solution, then the molarity of this solution is: 0.5 M 1.0 M 1.5 M 2.0 M

Use the periodic table to find the molar mass of each of the following elements. Sodium (Na) : g/mol Oxygen (O) : g/mol Carbon (C) : g/mol

What is a renewable source of energy? a. An energy resource that is used up over time. b. An energy resource that is available and can be recreated. c. An energy resource that is no longer used. d.

A wooden block has a volume of 25.3 cm3. Its mass is 17.0g. What is the density of this block?

If an element has 1 valence electrons, how many dots will be in the elements dot diagram?

What is the temperature of a gas at STP?

What is the numerical meaning of centimeter

You run an experiment to test the effects of temperature on solubility. What would you heat? A.) solvent B.) solute C.) the room B.) the beaker

What happens when a firework is ignited?