Which impurity can bioaccumulate in aquatic systems?

A. Mercury

B. Sulfur

C. Carbon Dioxide

D. Methane

What color would you predict milk of magnesium to turn red and blue litmus paper? a. red will turn blue, blue will remain the same b. both will remain the same c. blue will turn red, red will remain the same d. none of the above

Which of the following substances is heterogeneous? A. 3% hydrogen peroxide B. The lint from your clothes dryer C. A copper wire D. Iron E. Baking soda

How do measurements relate to scientific investigations?

What is the pressure of 0.540 mol of an ideal gas at 35.5 L and 223 K? 0.715 kPa 2.45 kPa 28.2 kPa 62.7 kPa

295 mL of a 1.00 M ammonium chloride (NH4CI) solution is diluted with 2.25 L of water. What is the new concentration in molarity?

P4O10 (s) = - 3110 kJ/mol H2O (l) = - 286 kJ/mol H3PO4 (s) = - 1279 kJ/mol Calculate the change in enthalpy for the following process: P4O10 (s) + 6H2O (l) → 4H3PO4 (s)

Aluminum bromide reacts with chlorine gas to produce aluminum chloride and liquid bromide, according to the chemical equation below: 2A1Br3 + 3Cl2 + 2AlCl3 + 3Br2 How many moles of Aluminum chloride are made if 779 g of chlorine gas are consumed?

When a cell is in late anaphase of mitosis, which of the following will we see?

What is the reactant (s) in the chemical equation below? 2Al (s) + 2NaOH (aq) + 2H2O () 2NaAlO2 (aq) + 3H2 (9) A. 2Al (s) + 2NaOH (aq) + 2H200) B. 2NaAlo2 (aq) + 3H2 (g) C. 2Al (s) D. 3H2 (g)

In an oil spill, why does the oil not mix with the sea water? A. Lipids are hydrophobic B. Lipids are hydrophilic. C. Lipids are saturated. D. Lipids are unsaturated.