Give a theoretical reason why lithium and oxygen combine in the ratio 2:1

A mole of golf balls would encircle the earth how many times

The atomic number tells the number of ___ proton neutron ._.

A 75 g sample of a substance is placed in boiling water until its temperature reaches 100 C. It is then immediately transferred to a calorimeter containing 100 g of water at 24.4 C. The final temperature of the sample and the water is 34.9 C.

What is the difference between the number of electrons in an atom of selenium?

Nitrogen is a group 15 element. What does being in this group imply about the structure of the nitrogen atom? O A. Nitrogen has 15 valence electrons. OB. Nitrogen has 15 neutrons. OC. Nitrogen has 5 valence electrons. D. Nitrogen has 5 neutrons.

Which of the following statements is not a description of Saturn? Known for its rings Largest planet in the solar system One of the gas giant planets Has several moons

How come flowers usually contain more stamen the pistils

How much energy is needed to change 44 grams of ice at - 8° to steam at 107°?

What is the minimum total energy released when an electron and its antiparticle (positron) annihilate each other?

What tells you how many atoms of an element are in a compound?