Which group in the the periodic table contains elements with the valence electron configuration of ns2 npl1?

4. Which of the following is an accurate description of the relationship demonstrated in Ohm's Law? A. The electric potential (volts) multiplied by the resistance (ohms) equals the current (amperes). B.

What are the major functions of the muscular system

Name two metalloids that are semiconductors

Calculate the moles of ammonia present in a 4.652 g sample if the molar mass of ammonia is 17.030 g/mol.

This cell part lets water and other nutrients in and out of the cell

Which of the following is an example of a molecule? F C Al O2

Organize the items listed into the proper sequence of events for gas exchange. a: O2 is transported to cells by circulatory system. b: O2 is drawn into the lungs during inhalation. c: Cells use O2 and generate CO2. d: CO2 is exhaled.

Research about the reaction of baking soda and vinegar

What mass (in mg) does 2.63 moles of nickel have? 3.56 * 105 mg 1.54 * 105 mg 2.23 * 104 mg 129 mg?

Given the propane molecule C3H8 (g) ! a) What is the balanced equation for the combustion of propane in O2? (20 pts.) b) What is the standard enthalpy change ΔH0 for the reaction at 25°C? (20 pts.