Which pair of elements would combine to form an ionic compound?

а

b

sodium and calcium

sodium and chlorine

carbon and oxygen

carbon and sulfur

с

d

Where do you get the c6h12o6 and o2 that is required for this process?

The red appearance of Mars is caused by the presence of what? My answers are methane, hydrogen, carbon dioxide, iron oxide!

Aqueous aluminum sulfate is mixed with aqueous ammonium hydroxide

When an inflated balloon is exposed to cold air, a. the temperature inside the balloon rises. b. the pressure inside the balloon rises. c. the volume of the balloon decreases. d. the volume of the balloon increases

5 The element sulfur is classified as a (1) metal (3) nonmetal (2) metalloid (4) noble gas

Which of the following statements is true? Question 5 options: Nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not.

In which group is an element that has an outer-level electron configuration consisting of one electron in the nd orbital and two electrons in the ns orbital?

List two non-SI units for volume, and explain how they relate to the cubic centimeter.

G which atomic orbitals overlap to form the carbon-carbon σ bonding molecular orbital of acetylene, c2h2?

Where did the earth hold most of its original water