What are different parts of an ecosystem

Which of the following is not true? A - Hydrogen contains only one electron and the spectrum gives a large number of lines B - There is only one type of energy transition in molecules which are electronic C - The emission spectrum can be used to

If you could place a piece of solid silver into a container of liquid silver, would it float or sink? Explain your answer

Which combination of atoms can form a polar covalent bond?

What is the mass number of an atom that has 12 neutrons and 11 protons?

Choose all of the statements below that are true about Avogadro's number and the mole: A) A mole is a counting unit B) Avogadro's number is to the mole what "12" is to a "dozen" or what "2" is to a "pair" C) We can use a conversion factor with

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