Which one is smaller?

neutron

proton

electron

atom

What does diatomic means?

Which statement accurately describes nonmetals? (Select all that apply). Most nonmetals are liquids at room temperature. Nonmetals are moldable and easily shaped. Most nonmetals are gases at room temperature. Nonmetals fracture easily under pressure.

All the following are steps included in linking amino acids to form chains except A. using peptide bond to connect the amino acids B. forming water C. removing the hydroxyl part of the amino group D. removing the hydrogen from the amino group

Dead leaves decaying, is it a chemical or physical change

What isotope is used for a standard for other atomic masses?

As the elements in Group 17 are considered in order of increasing atomic number, the chemical reactivity of each successive element (1) decreases (2) increases (3) remains the same

What is the concentration of an acid with a pH of 2?

g Assuming that the specific heat of the solution is 4.18 J / (g⋅∘C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate ΔH in kilojoules for the reaction.

Calculate the percent ionization of 0.0075 m butanoic acid (ka = 1.5 x 10-5) in a solution containing 0.085 m sodium butanoate.

A gas has a volume of 5.0 L at a pressure of 50 KPa. What happens to the volume when the pressure is increased to 125?