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Sergio039 [100]
3 years ago
15

What is a renewable source of energy? a. An energy resource that is used up over time. b. An energy resource that is available a

nd can be recreated. c. An energy resource that is no longer used. d. An energy resource that is now used more than oil and gas.
Chemistry
2 answers:
Aliun [14]3 years ago
8 0
The answer is B. An energy source that is available and can be recreated, such as the sun or water.
nikdorinn [45]3 years ago
4 0
Hello There!

The correct answer would be B
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Name three ways chemists keep track of amounts of substances
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4 0
4 years ago
Plz help I need help fast
CaHeK987 [17]

Answer: The correct answer is A. Molality. It is the concentration expressed as moles of solute per kilogram solvent. It is most commonly used in solving problems involving Colligative Properties (e.g. boiling point elevation, freezing point depression). Other ways to express concentration are Molarity, Mole Fraction, Parts per Million, Parts per Billion, and Normality.

Further Explanation

B. Mole Fraction is the ratio of the moles of a solute to the total moles of the solution. This unit of concentration is expressed as:

mole\ fraction \ of \ x = \frac{moles \ of \ solute \ x}{total\ moles \ of \ solution}

C. Molarity is the most common ways of expressing concentration.  It is the amount of solute per liter of solution and is expressed as:

Molarity\ (M) \ = \frac{moles \ of \ solute}{liter \ of \ solutiont}

D. ppm (or parts per million) is used for very dilute solutions. It is expressed as the mass of solute in milligrams per liter of the solution:

parts\ per \ million \ (ppm) = \frac{mass\ of \ solute \ (in\ mg)}{liter\ of\ solution}

Learn more  

1. Learn more about Molarity brainly.com/question/9183916

2. Learn more about Colligative Properties brainly.com/question/1257312

3. Learn more about Solution  brainly.com/question/7932885

Keywords: molarity, molality, mole fraction, parts per million

 

4 0
3 years ago
Bromine monochloride is synthesized using the reaction
slava [35]

According to ideal gas equation and mole concept, 9.656 g of BrCl is present in the reaction mixture at equilibrium.

<h3>What is ideal gas equation?</h3>

The ideal gas equation is a equation which is applicable in a hypothetical state of an ideal gas.It is a combination of Boyle's law, Charle's law,Avogadro's law and Gay-Lussac's law . It is given as, PV=nRT where R= gas constant whose value is 8.314.The law has several limitations.

Substituting the given values in the ideal as equation, n=PV/RT

∴n=1×190/8.314×273=0.083 moles

mass is calculated as number of moles×molar mass

mass=0.083×115.357= 9.656 g

Thus, 9.656 g of BrCl is present in reaction mixture at equilibrium.

Learn more about ideal gas equation,here:

brainly.com/question/28837405

#SPJ1

7 0
1 year ago
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