Which of these statements is not true?

A. Molecules arc made up of atoms.

B. Protons are smaller than quarks.

C. Atoms are larger than protons.

D. Protons are made up of quarks.

A student was given a pale blue transparent liquid in a beaker. The student gently heated the solution until the liquid had vaporized. Some blue crystals remained on the bottom of the beaker, why.

If I have 6.02 x1023 atoms of silicon, how many grams of silicon do I have?

Arrange these compounds in order of increasing standard molar entropy at 25°C: C3H8 (g), C2H4 (g), ZnS (s), and H2O (l).

Explain how hydrogen bonding contributes to water's high heat of vaporization

Alpha effect on atomic mass and effect on atomic number

When a warm front passes your location, the temperature rises rapidly. As a result, air density: B? increases decreases remains the same

A scientist wished to carry out a chemical reaction in which two moles of aluminum combine with three moles of sulfur. He has 2.70 g of aluminum to react. How many grams of sulfur must he take to satisfy all the aluminum atoms? 1.51 g 2.14 g 3.

Determine the equilibrium pH and speciation (concentration of each species) of the following two solutions. Neglect activity corrections. Species added Total concentration (solution a) HCl 10-3 M (solution b) NaCl 10-3 g.

How do you get dencity?

The materials created from a chemical reaction are called A. reactants. B. products. C. coefficients. D. none of the above.