How do quasars differ from galaxies

Which ionic compounds are not likely to dissolve in water? (More than 1 answer.) Na2SO4 CaSO4 Ca (C2H3O2) 2 Ba3 (PO4) 2

Insoluble sulfide compounds are generally black in color. Which of the following combinations could yield a black precipitate?

Electrons occupy certain high probability areas known as orbitals

A) It takes 47.0J to raise the temperature of an 10.7g piece of unknown metal from 13.0∘C to 25.0∘C. What is the specific heat for the metal? b) The molar heat capacity of silver is 25.35 J/mol⋅∘C.

A large marble is dropped in a graduated cylinder with 35ml of water in it. The water level increases to 49ml. What is the volume of the marble

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda