When 21.6 g of carbon were burned in the presence of 73.7 g of oxygen, 16.1 g of oxygen remained unreacted. What mass of carbon dioxide was produced?

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A chemical equation is a representation of a chemical reaction. a. True b. False

How many grams are there in 6 moles of h2o?

For any chemical reaction at equilibrium, the rate of the forward reaction is A. less than the rate of the reverse reaction B. greater than the rate of the reverse reaction C. equal to the rate of the reverse reaction D.

Five gases combined in a gas cylinder have the following partial pressures: 3.00 atm (N2), 1.80 atm (O2), 0.29 atm (Ar), 0.18 atm (He), and 0.10 atm (H). What is the total pressure that is exerted by the gases?

True or False a gas that ignites a glowing splint is oxygen

An example of a disaccharide is saccharin-aspartame molecule True False

How is electricity generated in a nuclear power plant?

Where do the materials used to make electronic devices come from

Which of the following are likely to form an ionic bond? -silicon and oxygen -oxygen and oxygen -carbon and hydrogen -magnesium and oxygen