Generator is a special device that converts chemical energy to mechanical energy. True False

Which alkali metal reacts most vigorously with nitrogen and that burns in air to form an oxide, rather than a peroxide?

Based on its formula, what type of chemical reaction occurs between silver nitrate (AgNO3) and copper (Cu) ? 2AgNO3 + Cu → 2Ag + Cu (NO3) 2 A. Synthesis B. Decomposition C. Single replacement D.

2. As the caisson is pushed deeper underwater, the air pressure in the caisson rises to 26.1 psi. Since it is 1869, the caisson is illuminated using flame. At the beginning of the shift, the temperature in the caisson was 91oF.

For the element barium, which wavelength of light is produced by the largest drop in energy for an electron? Which represents the smallest drop? Explain.

Enzymes are always consumed by catalyzing a reaction increase the rate at which a reaction occurs sometimes increase the amount of energy necessary to initiate a reaction catalyze reactions that release energy, but not those that consume energy

Why does the effective nuclear charge increase across a row of the periodic table?

Iodine-131 decays to form xenon-131. the half-life of this reaction is 8.07 days. from a 200-g sample of iodine-131, how much of the sample is xenon-131 after 16.14 days?

Complete the following statement by checking all that apply Creativity allows scientists to develop multiple approaches to solving problems. adapt to changes in scientific knowledge. look at old problems in new ways.

The atomic weight of hydrogen is 1.00794. a. True b. False

Describe What kind of ions do metals form? What kind of ions do nonmetals form?