What are the covalent bonds that form between atoms of different electronegativities called?

a. pure bonds

b. ionic bonds

c. polar bonds

d. uneven bonds

An analytical chemist wants to measure the concentration of lead in drinking water in their building. They dilute 1mL of the sample to 100mL of ultrapure water, then acidified (acidification does not affect concentration.

What does isoelectronic mean

29.0 grams of H2CO3 are dissolved in enough water to make 700.0 mL of solution. A) 0.468 L B) 0.468 moles C) 0.468 M D) 0.7 L E) 0.7 M

What is liquid nitrogen

Predict what will happen to the hydrogen ion concentration in the pH of water if I can if hydrochloric acid is added to the water

Gas X has a mass of 28.02 amu and gas Y has a mass of 32 amu. Which gas will diffuse faster?

How can you tell the element based on electron configuration?

Why do samples of platinum and copper have the same extensive properties?

The major difference between a 1s orbital and a 2s orbital is that The 2s orbital has a slightly different shape. The 2s orbital is at a higher energy level. The 2s orbital can hold more electrons. The 1s orbital can have only one electron.

Which of the following is a method of purifying water? A. Adding iodine B. Aeration C. Freezing D. Fixation