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goldfiish [28.3K]
3 years ago
5

What are the causes and consequences of climate change

Chemistry
1 answer:
Sati [7]3 years ago
7 0

Answer: Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down forests and farming livestock.

Explanation: This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming.

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Crude oil is separated into different substances such as gasoline, petroleum, diesel fuel, and propane by which process ?
algol [13]
<span>Fractionation - to expand from my answer to a previous question fractionation can be used to separate out more than one component based on a specific property. You still wanted to use Distillation on the other answer. Fractionation on this one.</span>
4 0
3 years ago
If you are measuring something with a graduated cylinder, what are you measuring?
JulijaS [17]
With a graduated cylinder, you are most likely measuring mL (milliliters) or volume of a liquid, or the mass of a liquid.
8 0
3 years ago
What volume of product is produced when 20.0 Mg of liquid hydrogen reacts with
mihalych1998 [28]

Answer: The volume of product formed is 0.26 L

Explanation:

\text{Moles of solute}=\frac{\text{given mass}}\times{\text{Molar Mass}}    

\text{Moles of} H_2=\frac{0.02g}{2g/mol}=0.01moles

2H_2(l)+O_2(l)\rightarrow 2H_2O(g)

As O_2 is the the excess reagent, H_2 is the limiting reagent as it limits the formation of product.

According to stoichiometry :

2 moles of H_2 give = 2 moles of H_2O

Thus 0.01 moles of H_2 will give =\frac{2}{2}\times 0.01=0.01moles  of H_2O

According to ideal gas equation:

PV=nRT

P = pressure of gas = 101.325 kPa = 1 atm

V = Volume of gas = ?

n = number of moles = 0.01

R = gas constant =0.0821Latm/Kmol

T =temperature =40^0C=(40+273)K=313K

V=\frac{nRT}{P}

V=\frac{0.01mol\times 0.0821L atm/K mol\times 313K}{1atm}=0.26L

Thus the volume of product formed is 0.26 L

8 0
3 years ago
8. A student passes a magnet over 10 g of a powder. Four grams of the powder stick to the magnet, while 6 g do not. Which of the
vladimir1956 [14]

Answer:

mixture

Explanation:

The properties of the components of substance are different. One component has magnetic properties, another does not. So, we have at least 2 individual substances that were mixed together. So, we have a mixture.

7 0
3 years ago
Read 2 more answers
Which of the following substances can be used to neutralize HF?
Artemon [7]

Answer:

option (D) NaOH is right answer

4 0
3 years ago
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