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alina1380 [7]
3 years ago
7

After studying many factors in the environment, a scientist developed this graph to

Chemistry
1 answer:
antoniya [11.8K]3 years ago
3 0

Answer:

D. to predict the effects of human population on the supply of natural resources

Explanation:

From the available graph, it can be seen that Natural resources and human population are directly proportional to each other. As the human population increases, the natural resources decreases, until they both finally meet up.

Hence, in this case, the correct answer is that the role of science in this study is "to predict the effects of human population on the supply of natural resources."

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No, because hydrogen isn’t brought out of the equation
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Why do you feel the force of Earth's gravity?
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<h3>Question:</h3>

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Answer:

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2 years ago
Eading and
4vir4ik [10]

Answer: 25.8 g of Cl_2 will be produced from the decomposition of 73.4 g of AuCl_3

Explanation:

To calculate the moles :

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

\text{Moles of} AuCl_3=\frac{73.4g}{303g/mol}=0.242moles

The balanced chemical reaction is:

2AuCl_3\rightarrow 2Au+3Cl_2  

According to stoichiometry :

2 moles of AuCl_3 produce =  3 moles of Cl_2

Thus 0.242 moles of  will produce= \frac{3}{2}\times 0.242=0.363mol of Cl_2

Mass of Cl_2= moles\times {\text {Molar mass}}=0.363mol\times 71g/mol=25.8g

Thus 25.8 g of Cl_2 will be produced from the decomposition of 73.4 g of AuCl_3

5 0
2 years ago
2. I want to create a density bottle with 3 solutions called A, B and C. I put 45 ml of solution A
Tamiku [17]

Explanation:143

what i meant was thank you for the points but it is 143

4 0
3 years ago
200 g of solid sodium hydroxide (NaOH) are dissolved in 750 mL of water. What is the concentration of this solution?
Anastaziya [24]

Answer:

6.67 M

Explanation:

Molarity = \frac{mol}{L}

<em>Convert 200g NaOH to moles. Convert 750 mL to L.</em>

200 g NaOH x (1 mol/39.998 g) = 5.00025... mol NaOH

750 mL x (1 L/1000 mL) = 0.750 L

<em>Substitute values into the equation.</em>

Molarity = \frac{5.00025}{0.750}

Molarity = 6.667... M

Molarity = 6.67 M

8 0
3 years ago
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