All metals a melt at high temperatures b conduct heat and electricity c contain iron d react with air and water

Ethylene C2H2 reacts with Oxygen according to the equation below. what volume of Oxygen (in dm3) reacts with 0.40 dm3 of C2H2? 2C2H2 (g) 5O2 (g) → 4 CO2 (g) 2H2O (g) ? (1) 0.4 (3) 0.80 (2) 1.0 (4) 2.0

Which substance, when dissolved in water, forms a solution that conducts an electric current

The distance from dalton, ga to Dallas, tx is 1308 km. What is the distance in miles

Which term describes the substance that is completely consumed (used up) during a chemical reaction?

Find the molar mass and the mass of 5.0000 mol of each of the following compounds. a. calcium acetate, Ca (C2H3O2) 2

Sound waves travel fastest through? A.) Air B.) Steel C.) Water D.) Vacuum

Which of the following combinations will result in a reaction that is never spontaneous? 1) positive enthalpy change and positive entropy change 2) positive enthalpy change and negative entropy change 3) negative enthalpy change and positive entropy

Which of the formed elements is present in the greatest concentration?

A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76% manganese (molar mass = 54.94 g/mol), and 40.50% oxygen (molar mass = 16.00 g/mol).

What would be the saturation concentration (mole/L) of oxygen (O2) in a river in winter when the air temperature is 0°C if the Henry's law constant at this temperature is 2.28 * 10-3 mole/L-atm? What would the answer be in units of mg/L?