Which of the following isotopes has the same number of neutrons as carbon-14?

a. O-15 (atomic # is 8)

b. N-14 (atomic # is 7)

c. O-16 (atomic # is 8)

d. F-19 (atomic # is 9)

How does a conclusion differ from an inference?

Calculate the volume of 2.0116 x 10^23 molecules of nh3 gas trapped in a container at a pressure of 2280.0 mmhg and a temperature of 41.000 c

A vapor composed of 0.60 mole fraction ethanol and 0.40 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid.

What is the mass of 1.7 * 1023 atoms of zinc

Using the periodic table, which of the following elements has the most properties in common with calcium (Ca) ? potassium (K) magnesium (Mg) scandium (Sc) argon (Ar)

What is frequency a measure of?

If you change the temperature of a gas but keep the volume the same, how does the pressure change?

What is the mass of 8 moles of sodium atoms

When 50.0 g of 0.200 M NaCl at 24.1 C is added to 100.0 g M AgNO3 at 24.1 C in calorimeter, the temperature increases to 25.0 C as AgCl2 forms. Assuming the specific heat of solution and products is 4.

Explain why elements and compounds are pure substances