How many atoms of He are in 5.69 grams?

O

3.70 x 10 23

O

3.7x10 23

O

8.57 x 10 23

O

8,6 X 10 23

When a 375 mL sample of nitrogen is kept at constant temperature, it has a pressure of 1.2 atmospheres. What pressure does it exert when compressed to 125 mL

Which of the following statements is correct? A large Keq value indicates that products are favored. A small Keq value indicates that the reverse reaction will occur very quickly. A large Keq value indicates that reactants are favored.

What makes up a element

What is the electron dot diagram for hydrogen, neon, sodium, aluminum, fluorine, argon, potassium

Double indemnity protection provides a. protection if the policy holder becomes disabled. b. payment for burial costs and unpaid debts. c. protection without evidence of insurability. d. double benefits if death is the result of an accident.

8H2 + S8->8H2S Based on the mole ratios, what can most likely be predicted?

What do parent and daughter cells have in common? Check all that apply. There is one parent cell and one daughter cell. There are two parent cells and two daughter cells. They contain copies of the same cellular components.

If a liquid is heated, which of the following happens to both its energy content and the speed of its particles? A. The energy remains the same; the speed increases. B. The energy remains the same; speed remains the same. C.

An atom of magnesium has an atomic number of 12 and a mass number of 24. how many neutrons are in the neclues

What are oxides in chemistry