A voltaic cell spontaneously converts chemical energy to

(1) electrical energy (3) mechanical energy

(2) geothermal energy (4) nuclear energy

Which of the following statements is false for the chemical equation given below? Assume the reaction goes to completion.

What element is a colorless gas, stable in air, forms very few compounds, and only in extreme conditions?

Which career field is an applied science? Which hypothesis is testable?

GeF3H is formed from GeH4 and GeF4 in the combination reaction: GeH4 + 3GeF4 - > 4GeF3H. If the reactiln yield is 92.6%, how many moles of GeF4 are needed to produce 8 mol of GeF3H?

What kind of force do you exert. On an object when you pull it toward you

A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independently and is fully excited and thus cv=3NAkB=24.9 kJ / (kmol⋅K). This is called the law of Dulong and Petit.

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.

Carbon dating advisable for measuring materials ages for a few years, thousands of years, millions of years