Which subatomic particles are located in the nucleus of an He-4 atom?

(1) electrons and neutrons

(2) electrons and protons

(3) neutrons and protons

(4) neutrons, protons, and electrons

How does the arrangement of the particles in a gas compare to that of a solid

Potassium chlorate decomposes to potassium chloride and oxygen. If 20.8 g of potassium chlorate decomposes, how many liters of oxygen will form at STP?

What is the element sulfur classified as

Chemistry 1 Question

If molecule dissociates in water what does it do

Two identical vessels are filled, at the same temperature and pressure, with different gases. One is filled with hydrogen and the other with carbon dioxide. Which statement is correct? a. Carbon dioxide molecules will have inelastic collisions. b.

If Plank's constant is 6.6 x 10 (-34) J/Hz, then what is the approximate frequency of a photon having an energy of 3 x 10 (-19) Joules?

Do all organisms perform meiosis?

What is the two significant figure of 11.76 cm^2? Rounded Answer

What happens to the size of a metal element as it becomes a cation? a. it increases b. it decreases c. it remains the same d. it is impossible to tell unless you know the specific element