What does an atomic number represent in an atom? 1. Number of protons 2. Number of electrons. 3. Number of neutrons. 4. Number of protrond and neutrons

Studies involving humans or animals are conducted under strict policies and procedures. This solution addresses which limitation?

2.22 moles of HCl are dissolved in enough water to make 1.5 liters of solution. Show work. A. 1.0 M B. 1.25 M C. 1.5 M D. 2.0 M E. 2.5 M

Inertia describes which of the following? how long an object is how large an object is how difficult it is to change an object's motion how fast an object is moving

Which of these is a case of selective breeding? A. To increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mothers. B.

What is the temperature of 0.750 mol of a gas stored in a 6,850 mL cylinder at 2.21 atm? A: 2.95 K B:5.24 K C:138 K D:246 K

How did coroners handle their responsibilities in the early 1900s? Why was there a need for significant change in the job?

Which of the following is the best indication that a chemical change has taken place? a. The matter changes color. b. A mixture separates into layers. c. The change is reversible. d. The shape of the substance changes.

This is not lost in a chemical Reaction (4 letter word second letter is A)

Which type of soil holds the least water

Eq-43 which type of fire extinguisher should be onboard a vessel with a permanently installed fuel tank