Why can hydrogen only form one covalent bond?

Why does a compound have characteristic properties?

What is the enthalpy of combustion (per mole) of C3 H8 (g) ?

Match the celestial bodies with their descriptions. meteorite, asteroid, meteor, comet, A) an object from space burning up as it enters the atmosphere of a planet B) a small body in space, usually composed of rock or metal C) an object from space

Sodium thiosulfate, na2s2o3, is used as a "fixer" in black and white photography. identify the reducing agent in the reaction of thiosulfate with iodine. 2s2o32 - (aq) + i2 (aq) → s4o62 - (aq) + 2i - (aq)

Which of the following describes the relationship between acid strength and ka value for weak acids? a. when ka increases, the acid strength decreases b. when ka increases, the acid strength increases c.

Fossil fuels are considered useful to humans because they are

Which organelles are unique to plant cells? chloroplasts mitochondria vacuoles nuclei

An atom that has 13 protons and 15 neutrons is an isotope of the element? How can I count it?

Which element is nuclear fusion least likely to produce? hydrogen, which has an approximate mass of 1 chlorine, which has an approximate mass of 35 argon, which has an approximate mass of 39 silicon, which has an approximate mass of 28 I know the

How deep does the surface current known as the Gulf Stream go A. 3,000 meters B. 3 meters C. 300 meters