alexadra has a density of 3.72g/mL. and a mass of 11160 mg. If the object is placed in a graduated cylinder containing 25 mL of water. What is the final volume?

At a nuclear power plant, workers wear protective clothing and dosimeters to measure their exposure to radiation, the nuclear fuel is held in an airtight steel vessel, and the reactor is covered with reinforced concrete.

Which of these is the best definition of a fuel cell? a small container that holds a source of energy a solar cell that captures light energy and converts it into electricity a voltaic cell that uses the oxidation of a fuel to produce electricity a

An air sample contains 0.044% CO2? If the total pressure is 750 mm Hg. What is the partial pressure of CO2?2?

A molecule is a (n) - A. element that physically combines with another element. B. particle composed of two or more atoms bonded together covalently. C. element that isn't bonded to another element.

The fact that ice is less dense than water is related to the fact that

Balance the following chemical equation: / text{CH}_ 4 + CH 4 + start text, C, H, end text, start subscript, 4, end subscript, plus / text{O}_ 2 / rightarrow 2 →start text, O, end text, start subscript, 2, end subscript, right arrow / text{CO}_2 +

How did the invention of the spectroscope in 1859 change the science of chemistry

Will zinc and sodium carbonate react?

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number