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3 years ago

Discuss the pros and cons of the various methods that have been proposed to regulate or control global warming?

1 answer:

3 0

For example, a method that has been used to regulate or control global warming is planting trees. The pros of planting trees is they serve as an absorber of carbon dioxide which helps the ozone layer get protected by the oxygen trees produce and they also regulate the temperature in the atmosphere although the cons are these trees can also catch fire eaaily due to the rising temperature in the atmosphere which can make them less effective in regulating the warming of the globe.

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Magnetic field on iron man

siniylev [52]

Answer:

ok that makes sense

Explanation:

elect me for president

3 0

3 years ago

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What volume of water is needed for 0.196 mol of CdCl2 to prepare a 3.91 M solution? L

Brilliant_brown [7]

0.050 litres of the water will be required to make a 3.91 M solution with 0.196 moles in it.

Explanation:

Data given:

moles of Cd $Cl_{2}$ = 0.196 Moles

Molarity of the solution = 3.91 M

Volume in litres =?

molarity is calculated by the formula:

molarity = $\frac{number of moles}{volume in litres}$

putting the values in the above formula and rearranging it for volume:

volume = $\frac{number of moles}{molarity}$

volume = $\frac{0.196}{3.91}$

volume = 0.050 litres

0.050 litres of the water will be required to make a 3.91 M solution with 0.196 moles in it.

Molarity is the number of moles present in a given volume of solution which is given in litres. It is the measurement of the concentration of particular solute in a solution.

4 0

3 years ago

How many atoms are there in a sample of lead with a mass of 6.8 g?

Leviafan [203]

Answer:

Explanation:

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3 years ago

Which element is classified as a noble gas? O N Cl Xe

ivann1987 [24]

Answer: The correct answer is Xenon (Xe).

Explanation:

Noble gases are defined as the gases which have fully filled electronic configuration or stable electronic configuration.

From the given options:

Option 1: Oxygen (O)

The atomic number of this element is 8.

Electronic configuration of this element: $1s^22^22p^4$

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

Option 2: Nitrogen (N)

The atomic number of this element is 7.

Electronic configuration of this element: $1s^22^22p^3$

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

Option 3: Chlorine (Cl)

The atomic number of this element is 17.

Electronic configuration of this element: $1s^22^22p^63s^23p^5$

As, this is not the stable electronic configuration. Thus, it is not considered as a noble gas.

Option 4: Xenon (Xe)

The atomic number of this element is 54.

Electronic configuration of this element: $[Kr]5s^24d^{10}5p^6$

As, this is a stable electronic configuration. Thus, it is considered as a noble gas.

Hence, the correct answer is Xenon (Xe).

7 0

4 years ago

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Enumere por lo menos 5 objetos que antiguamente se hacían con otro material y en la actualidad se hacen con un polímero. Identif

Kay [80]

Translation: List at least 5 objects that were formerly made from another material and are now made from a polymer. Identify what polymer it is

Answer:

Five object now replaced with polymers

1) automobile body parts. (polypropylene, polyurethane and PVC)

2)TV cabinets. (polystyrene polymer)

3) composites for golf clubs. (carbon ﬁbre reinforced polymer CFRP)

4) fibers for clothing and carpet. (acrylic and nylon)

5) foams for coffee cups (polystyrene)

4 0

4 years ago