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Leno4ka [110]
3 years ago
12

How does temperature, pressure, and density impact the core of the Earth?

Chemistry
1 answer:
Vanyuwa [196]3 years ago
4 0

Answer:

temperatures within the outer core range from 7,200 to 9,000 F. Pressure also increases in the outer core due in part to the weight of the crust and mantle above.The Earth's magnetic field is generated by the outer core.

Explanation:

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What is the total number of grams of potassium fluoride
Mice21 [21]

Explanation:

molarity=no. of moles of solute/solution in litres

6.17M=no. of moles of solute/9.4 L

6.17×9.4=no. of moles of solute

57.9 =no. of moles of potassium fluoride KF

no. of moles=given mass /molar mass

57.9=given mass/58

3358.2 g

8 0
3 years ago
How many grams of iron metal do you expect to be produced when 325 grams of an 87.5 percent by mass iron (II) nitrate solution r
Debora [2.8K]
Answer: 88.2 g

Solution:

1) Chemical equation:

<span>2Al (s) + 3Fe(NO3)2 (aq) → 3Fe (s) + 2Al(NO3)3 (aq)

2) Theoretical molar ratios

2 mol Al : 3 mol Fe(NO3)2 : 3 mol Fe : 2 mol Al(NO3)3

3) Starting mass of pure iron nitrate

% = (mass of iron nitrate / mass of solution) * 100 = 87.5

=> mass of iron nitrate = 87.5 * mass of solution / 100

mass of solution = 325 g

=> mass of iron nitrate = 87.5 * 325 g / 100 = 284.375 g

4) moles of iron nitrate

moles = mass in grams / molar mass

molar mass of Fe(NO3)2 = 179.85 g/mol

moles = 284.375 g/ 179.85 g/mol = 1.58 moles Fe(NO3)2

5) proportion:

             x                                 3 mol Fe
--------------------------- =     ----------------------
1.58 mol Fe(NO3)2          3 mol Fe(NO3)2

Clear x:

x = 1.58 mol Fe

6) Convert 1.58 mol Fe into grams

mass = number of moles * atomic mass

atomic mass of iron = 55.845 g / mol

mass = 1.58 moles * 55.845 g/mol = 88.24 g

Rounded to 3 significant figures: 88.2 grams of Fe.
</span>
6 0
3 years ago
Write the chemical equation for the reaction whose enthalpy change is the standard enthalpy of formation of fructose, C6H12O6(s)
ziro4ka [17]

Answer:

6 C(s) + 6_{H2}(g) + 3_{O2}(g)

Explanation:

The chemical equation of the reaction is as follows

According to the question, data provided in the question is shown below:

C_6H_12O_6

The C = Carbon and its standard state is Graphite C(s)

The H = Hydrogen and its standard state is H_2 (s)

The O = Oxygen and its standard state is O_2 (s)

Now the chemical equation for the reaction is

6 C(s) + 6_{H2}(g) + 3_{O2}(g)

5 0
4 years ago
Which of the following is best described as an acid-base reaction?
seraphim [82]

The reaction which represents an acid-base reaction is: HNO3(aq) + NH3(aq) → NH4*(aq) + NO3(aq).

<h3>What is an acid-base reaction?</h3>

An acid-base reaction is a reaction in which a substance donate protons to another substance which then accepts the proton.

An acid-base reaction usually involves the formation of a salt.

From the given reactions, the acid-base reaction is given below:

  • HNO3(aq) + NH3(aq) → NH4*(aq) + NO3(aq)

In the given reaction, HNO3 donates a proton and NH3 accepts the proton.

Therefore, the reaction which represents an acid-base reaction is: HNO3(aq) + NH3(aq) → NH4*(aq) + NO3(aq).

Learn more about acid-base reaction at: brainly.com/question/15334816

#SPJ1

4 0
2 years ago
Please help multiple choice 15 points
stellarik [79]

A is the answer to this question. Thank you.

5 0
3 years ago
Read 2 more answers
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