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3 years ago

How could an increase in industrial activity in developing nations contribute to global climate change?

1 answer:

6 0

If there is an increase in industrial activity, that means that more heat will be dissipated to the atmosphere in the form of carbon dioxide. Industrialization requires fuel to keep the processes on the go. At the end of the pipeline, the combustion of fuel would result to carbon dioxide released to the atmosphere. That's how it is contributing to the global climate change through the greenhouse effect.

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Because ________ change the identity of the substances involved, they are hard to reverse

sveta [45]

Chemical is the answer to the question, but nuclear could also be a valid one since it is nearly impossible to reverse that.

4 0

4 years ago

KCl and KBr are both ionic solids. A mixture of KCl and KBr has a mass of 3.595 g. When this mixture is heated in the presence o

monitta

Answer:

The percentage (by mass) of KBr in the original mixture was 33.1%.

Explanation:

The mixture of KCl and KBr has a mass of 3.595g, thus the sum of the moles of KCl (<em>x</em>) multiplied by it molar mass (74.5g/mol) and the moles of KBr (<em>y</em>) multiplied by it molar mass (119g/mol) is the total mass of the mixture:

$x.74.5g/mol + y.119g/mol = 3.595g$

Also, after the conversion of KBr into KCl, the total mass of 3.129 g is only from KCl moles, hence

$\frac{3.129g}{74.5g/mol} = 0.042 moles$

But the 0.042 moles came from the originals KCl and KBr moles, thus

$x + y = 0.042moles$

Now it is possible to propose a system of equations:

$x.74.5g/mol + y.119g/mol = 3.595g$

$x + y = 0.042moles$

Solving the system of equations,

$x=0.032moles\\y=0.010 moles$

0.010 moles of KBr multiplied it molar mass is

$0.010molesx119g/mol = 1.19g$

Therefore, the percentage (by mass) of KBr in the original mixture was:

$\frac{1.19g}{3.595g}x100% = 33.1%$ %

4 0

3 years ago

Molecular iodine, I2(g), dissociates into iodine atoms at 625 K with a first-order rate constant of 0.271 s−1 .

katrin [286]

The correct is this because they said

4 0

3 years ago

How can i make an aloe vera hair mask

Shtirlitz [24]

Mix aloe vera and honey or olive oil if you want. the internet says yogurt but thats disgusting so dont do that but if you wanna do that then thats fine go for it.

5 0

3 years ago

What you think would happen if global warming caused a decrease in all clouds

marta [7]

Answer:

Global warming is expected to cause changes in the amount of cloud cover, and the height and thickness of these clouds in the future, shifting the balance between the parasol and blanket effects of clouds. The knock-on effect this will have on temperature is known as cloud feedback

Explanation:

7 0

3 years ago