If an atom has 15 protons, 13 neutrons, and 17 electrons, what is the atom's electrical charge?

Which statement best explains the symbol [NaCl]? moles of water per liter of NaCl moles of water per liter of solution moles of NaCl per liter of solution moles of NaCl per liter of water

You weigh two different objects on the same scale in the same location on Earth. The weights are different. What must be different about the two objects?

What are some factors that affect the geometry of a molecule?

Why is a solution not a pure substance? A. It is made up of two substances that are chemically combine. B. It is made up of one substance. C. It is a mixture between a solute and solvent. D. The solute and solvent cannot be separated.

Where would water be placed, if at all, in this Venn diagram?

What is a scientific explanation for a range of hypotheses and observations supported by testing

A chemical reaction involves the rearrangement of atoms to form new molecules. During a chemical reaction, however, atoms are neither created nor destroyed. Which of the following is true about the atoms involved in a chemical reaction? A.

What is the new concentration, after diluting 300 mL of a 1.5 M LiCl solution to 1L

The answer that he gave was wrong

In which orbital does an electron in a bromine atom experience the smallest?