The central core of an atom is called the

What do the microtubules do

Which of the following statements holds true for a chemical change? A.) In a chemical change, no new substance is formed. B.) In a chemical change, a substance changes its phase. C.

Who established using atomic numbers as the basis for organizing the periodic table?

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.

What is meant by first ionization energy?

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda