Which elements can react to produce a molecular compound?

(1) calcium and chlorine

(2) hydrogen and sulfur

(3) lithium and fluorine

(4) magnesium and oxygen

Calculate the average atomic mass of carbon if 98.90% of the atoms are C-12 (12.000000 amu) and 1.100% are C-13 atoms (13.003354 amu). Give your answer to the correct number of significant figures.

Which statement describes an intensive property of matter? A. It is the same for every sample of a single substance B. It depends on how a substance was formed C. It is the same for every sample of every substance D.

Which statement about silver (Ag) metal is least reliable? A. Silver metal may be useful in medicine in the future. B. Silver atoms commonly form ions with a + 1 charge. C. Silver is a transition metal with electrons in the d shell. D.

1.) If (H+) is high, would the substance be acidic or basic? Why? 2.) If (OH-) is high, would the substance be acidic or basic? Why?

Calculate the volume in milliliters of a 1.3M zinc nitrate solution that contains 100. g of zinc nitrate ZnNO32. Be sure your answer has the correct number of significant digits.

Choose the best answer to each question. Which has the most kinetic energy? a bowling ball with a velocity of 1.5 m/s Or a golf ball with a velocity of 0.5 m/s

Acid indigestion is sometimes neutralized with an antacid such as magnesium hydroxide (Mg (OH) 2). What products will be released when the antacid is mixed with the hydrochloric acid in the stomach

What particles make up the nucleus

Calculate the wavelength of EMR that has a frequency of 9.50 x 10^8 Hz

How many moles of FeO are produced if 8 moles of CuFeS, are consumed?