What term is used for the electrons in the outermost shell or energy level

Can chemicals be used to separate a solution of potassium and zinc if yes how

During an experiment, ice and water were placed in a perfectly insulated thermos flask at 0 °C. Describe this system when it phase reaches equilibrium.

If aqueous solutions of lead (II) nitrate and sodium sulfate, which insoluble precipitate is formed? Select one: a. NaNO3 b. Na2NO3 c. PbSO4 d. Pb2SO4 e. PbS

Compared to the charges of a proton the charge of an electron has 1. a greater magnitude and the same sign 2. a greater magnitude and the opposite sign 3. the same magnitude and the same sign 4. the same magnitude and the opposite sign

What type of reaction occurs when baking soda & vinegar combine? Besides double replacement?

100 ml oxygen at 1.75 atm and 200ml nitrogen at 0.6 atm are passed to a 500 ml vessel. Calculate the total pressure of the mixture in the vessel at same temperature

Which is the best metal to use in an alloy to increase its electrical conductivity

Ice does not need to melt into liquid water before it can return to the atmosphere as water vapor. a. True b. False

How much ice at a temperature of - 17.5 ∘C must be dropped into the water so that the final temperature of the system will be 31.0 ∘C?

Why does a gas fill completely the vessel in which it is kept?