What is relative atomic mass of an element and why is it a decimal?

What do the 14th Amendment and the Civil Rights Act of 1866 have in common? A. They were ways Congress sought to guarantee blacks the full rights of citizenship. B. They were efforts by Congress to solve economic problems in the South. C.

Explain generally what makes a cloud

An acidic fog in pasadena was found to have a ph of 2.50. which expression represents this ph measurement?

What are physical properties of liquids?

Kia is doing an experiment in science lab. She is given a beaker containing 100 g of liquid. The beaker has markings on the side for measuring volume. The water comes up to the 100 mL mark. Kia puts the liquid on a hot plate by mistake.

What is the molar mass of the following substance : Cs2CO3

What does the velocity of a wave describe

Sulfur (S) has 16 protons and 16 neutrons. How many electron shells does an element of sulfur have?

Which one of the following statements about orbital energies is incorrect? A) The energy of a given orbital increases as the nuclear charge Z increases. B) In many-electron atoms the energy of an orbital depends on both n and l.

When solid lead (II) sulfide ore burns in oxygen gas, the products are solid lead (II) oxide and sulfur dioxide gas.? A. write the balanced equation B. how many grams of oxygen are required to react with 29.9 grams of lead II sulfide? C.