Which symbolizes a molecule of a compound?

Question 20 options:

Ar2

H2O2

Si

F2

Calculate the pH of a solution formed by mixing 200.0 mL of 0.30 M HOCl (hypochlorous acid) with 300.0 mL of 0.20 M NaOCl (sodium hypochlorite). The Ka for HOCl is 2.9 * 10-8.

At 20°C, a sample of H2O liquid and a sample of CO2 gas each have the same average kinetic energy. Why is one a liquid and the other a gas at this temperature?

Which of the following best describes a double-replacement reaction? A. One compound splits up, forming two or more elements or new compounds. B. Atoms in one compound switch places with atoms in another compound. C.

What type of energy is the sum of an object's potential and kinetic energy? O mechanical energy electromagnetic energy O chemical energy Othermal energy

How did the growth of the economy affect the status of women society?

Which of these is a covalent compound? 1. AICI3 2. CO 3. MgO 4. LiCI

What is a protein used for

Atoms of the halogen family typically steal two electrons from other atoms when they react true or false

Looking at the periodic table, which group consists of elements that will not form an acid when combine with hydrogen? A) radon, neon, calcium B) neon, bromine, barium C) beryllium, iodine, krypton D) lithium, potassium, fluorine

Mixtures have (exact, relative) amounts of the same substances