Which of the following groups contains reactive elements that need to gain only one electron to have a full outer energy level?

alkali metals

alkaline earth metals

halogens

noble gases

1. Concentrated HCl is 11.7M. What is the concentration of a solution made by diluting 25.0 mL to 1000. mL? M. Vis Meta

In a nuclear power plant control rods are used to

Using the field meter, does the field strength increase or decrease as you move away from the bar magnet?

Write a chemical equation for the chemical reaction in which calcium carbonate (CaCO3) produces calcium oxide (Cao) and carbon dioxide (CO2).

Read the measurement. how many milliliters are shown? 34 ml 38 ml 39 ml 40 ml

Mass_mole relationship

What is the momentum of an 800-kg car | traveling at a velocity of 10 m/s? What is its momentum if it speeds up to 50 m/s?

How many grams of CuSO4 are there in 100.0 g of hydrate? How many moles?

Which student is determining the atomic mass of sodium?

Ionic compounds can conduct electricity when dissolved in water or melted, because a. the ions are free to move. b. they have no ions to contribute to the solution. c. the ions are fixed in place. d. they have shared electrons.