Nitrogen (N) has seven electrons. How many electrons are in the second shell of a nitrogen atom?

Is Jane Goodall a scientist

How many grams of 2.5% "h" cream should be mixed with360 grams of 0.25% "h" cream to make a 1% "h" cream?

Why are carcinogens a concern to people?

Heat energy is transferred to the pot; heat energy is transferred to the liquid; heat energy A) is lost. B) stays in the liquid. C) leaves the pot as the liquid boils. D) is transferred to the spoon and air.

Match the term with the definition. gas solid plasma Liquid takes the shape and volume of an entire container. charged particles that do not have a definite shape or volume. assumes the shape of the part of the container from the bottom up.

What volume will 0.710 moles of nitrogen gas occupy at STP?

4) Acompound has an empirical formula of Na2co3, and a molar mass of 3.18g/mol. Find its molecular formula.

How many molecules of glucose, C6H12O6, can be "burned" biologically when 283.2 grams of oxygen is a available?

Why does acids that has been accidentally spilled on a book cause the colour of the book cover and the ink to change?

How many moles of H2O will be required to make 19.2 moles of O2