Which of the following is a single-replacement reaction?

A. CaCl2 + Na2CO3 CaCO3 + 2NaCl

B. H2 + Cl2 2HCl

C. 2AgNO3 + Cu 2Ag + Cu (NO3) 2

D. CH4 + 2O2 CO2 + 2H2O

What is the formula for calcium carbonate?

1). How can the position of a particle be determined? A-by measuring its mass B-by determining its charge C-by analyzing its interactions with another particle D-by measuring its velocity 2).

What is the molar mass of magnesium and atomic oxygen?

A strontium hydroxide solution is prepared by dissolving 21.78 g of strontium hydroxide in water to make 75.00 mL of solution. What is the molarity of this solution? Next the strontium hydroxide solution prepared in part A is used to react with a 0.

A sample of nitrosyl bromide (nobr) decomposes according to the equation 2nobr (g) ⇌2no (g) + br2 (g) an equilibrium mixture in a 5.00-l vessel at 100 ∘c contains 3.26 g of nobr, 3.06 g of no, and 8.15 g of br2. part a calculate kc.

Car Q and z are put though an endurance test to see if they can travel at 120 km/h for 5.0 hours. Each car has a 45-L fuel tank. Car z must stop to refuel after traveling for 4.2 hours. Car Q, however, travels for 5.4 hours before running out of gas.

What happened to the atoms in the heated metal ball so that it didn't fit through the ring?

A 3.00 L flexible container holds a sample of hydrogen gas at 153 kPa. If the pressure increases to 203 kPa and the temperature remains constant, what will the volume be?

Measurement of the functions of a nephron reveals a glomerular capillary pressure of 69 mm Hg, and a pressure in the capsular space of 15 mm Hg.

Water is unique because the density of it's solid is less than the density of it's liquid. Describe how life would be different if this weren't true