Which of the following chemical formulas shows a covalent compound?

A: NaCI B: HBr C: CO2 or D: MGO

Why is it important to close the container of sodium borohydride after use?

A sample of oxygen gas has a volume of 150.0 ml when its pressure is 0.947 atm. what will the volume of the gas be at a pressure of 0.987 atm if the temperature remains constant?

Ght #of # of Element symbol | # of neutron Atomic mass proton electron or s Co A B 49 C 27 D 73 31 G H 58 115 181 | Ba-2 137 16 18 16

What type of sedimentary rocks are found in beaches?

3. What kinds of space and matter can light travel through?

Which is a sign of a chemical change? Question 6 options: Paint on a freshly painted wall dries and is no longer sticky. Ice cream melts when left at room temperature. Vinegar is mixed with baking soda resulting in carbon dioxide bubbles.

What is the correct term for water Atom element product reactant

Do carbon atoms gain, lose, or share electrons?

In aqueous solution the ag ion forms a complex with two ammonia molecules. Write the formation constant expression for the equilibrium between the hydrated metal ion and the aqueous complex.

Which samples are substance? (A) HCI (aq) (B) NaCI (aq) (C) HCI (g) (D) NaCI (s)