An irregularly stone was lowered into a graduated cylinder holding a volume of water equal to 2.0 mL. the height of the water rose to 7.0 mL. if the mass of the stone was 25g, what was it's density

What happens to the energy produced by burning gasoline in a car engine? The energy is transformed into work to move the car. The energy is lost as heat in the exhaust. The energy heats the parts of the engine. All of the answer choices

For a reaction in a voltaic cell, both ΔH° and ΔS° are positive. Given the following equations for standard free energy, ΔG° = ΔH° - TΔS°; ΔG° = - nFE°.

if 980 KJ of energy are added to 6.2 L of water at 291 K, what will the final temperature of the water be

Which of the following can happen during a chemical change? A. atoms change into new types of atoms. B. bonds break, and new bonds form. C. nuclei of atoms break apart and combine D. All of the electrons in the atom are lost

How do you balance a chemical equation?

State the relationship between the number of electrons in a carbon-nitrogen bond and carbon-nitrogen bond energy

What are the characteristics of bones?

If 294 grams of FeS2 is allowed ti react with 176 grams of O2 according to the following equation how many grams of Fe2O3 are produced? FeS2 + O2 = Fe2O3 + SO2

Convert 3.57 moles of aluminum to grams

An average microwave uses a frequency of 2.54 GHz. How much energy is emitted?