How does CFL lamps help in conservation of energy?

Answers

Answer 1

Answer: CFL means compact fluorescent lamp

It can save five times its purchase price in electricity cost because it contains toxic mercury that is equivalent in working: electrons that are bound to mercury atoms are excited to states where they will radiate ultraviolet light as they return to lower energy level, this ultraviolet light will be converted into visible light as it strikes to the coating of the bulb. Like LED that is high-efficiency house lighting.

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What is the source of fuel that is most widely used today?a. Coal
b. Crude oil
c. Natural gas
d. Nuclear energy

Answers

The source of fuel that is most widely used today is Natural gas. The answer is letter C. The rest of the choices do not answer the question above,

Unknown element X combines with oxygen to form the compound XO2. If 44.0 grams of element X combines with 8.00 grams of oxygen, what is the atomic mass of element X?A. 16 amu
B. 44 amu
C. 88 amu
D. 176 amu
E. 352 amu

Answers

Oxygen has a Mr of 16 and half of 16 is 8 which is how many grams used. If 44 grams of X is used it must have an amu of 88. (Times 2)

How many grams of hydrogen peroxide (H2O2) must be added to 1,500 ml of water to produce a concentration of 1.33 m (molal solution)

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I hope it helped you out.

Which reaction should be used to convert propene into alkyl halide

Answers

Alkyl is a rare compound, and also very confusing.
I'm assuming you meant "propane"...

C3H8 = Propane
CnH2n+1-- X << Alkyl Halide
X = Cl

Simply set a chemical reaction :

C3H8 → CnH2n+1-- X

The solid part of the blood consists of _____ and _____ blood cells.red
white
black
blue

Answers

Your blood is a living part or tissue of your body that composed of liquid and solid part. The liquid part is made of plasma and mineral like, water, salt and protein. While the solid part is composed of red blood cells, white blood cells and also platelets

What is the temperature of 1.2 moles of Helium gas at 1950 mm Hg if it occupies 15,500 ml of volume?