Which pair of elements will form a covalent bond?

hydrogen and chlorine

sodium and chlorine

copper and bromine

zinc and bromine

A group of organisms that share similar characteristics

Which body tissue or organ contains the most mitochondria?

How would you expect the appearance of a rock high in iron and magnesium to differ from a rock with very little iron and magnesium?

What is abbreviated structural formula of the 2-metil-5-isopropiloctan?

Ladybugs eat aphids on plants. Ajoy counts the number of ladybugs in one square meter of his garden. To estimate the number of ladybugs in the entire garden, Ajoy needs the dimensions of the garden. ladybug life span. number of plants in the garden.

The reaction below has an equilibrium constant kp=2.2*106 at 298 k. 2cof2 (g) ⇌co2 (g) + cf4 (g) calculate kp for the reaction below. cof2 (g) ⇌12co2 (g) + 12cf4 (g)

The electrical conductivities of the following 0.100 M solutions were measured in an apparatus that contained a light bulb as the indicator of conductivity. Rank the solutions in order of decreasing intensity (brightest to dimmest) of the light bulb.

What is the name of a list of elements arranged according to the ease with which they undergo certain chemical reactions?

Why is it harder for the earth to recover from some natural disasters now? A) Human influence may compound the damage. B) The natural disasters have gotten worse. C) This statement is not true.

Heat is most closely related to ___ energy. A. Nuclear B. Electrical C. Thermal