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Debora [2.8K]
3 years ago
13

What earths layer is broken up like puzzle pieces

Chemistry
1 answer:
lilavasa [31]3 years ago
4 0

The crust because there are tectonic plates.

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Q #13 How many moles of MgCl2 are there in 350. g of compound?
Vaselesa [24]

<u>Answer:</u>

3.67 moles

<u>Step-by-step explanation:</u>

We need to find out the number of MgCl_2 moles present in 350 grams of a compound.

Molar mass of Mg = 24.305

Molar mass of Cl_2 = 35.453

So, one mole of MgCl_2 = 24.305 + (35.453 * 2) = 95.211g

1 Mole in 1 molecule of MgCl_2 = \frac{1}{95.211} = 0.0105

Therefore, number of moles in 350 grams of compound = 0.0105 * 350

= 3.67 moles



8 0
3 years ago
Classify the statements pertaining to elements and compounds as either true or false
Volgvan

Yes Compounds are generally made of two or more atom or ion or species!

TRUE

3 0
3 years ago
What volume would 3.00 moles of neon gas have at 295 K and 645 mmHg?
LUCKY_DIMON [66]

Answer:

V = 85.619 L

Explanation:

To solve, we can use the ideal gas law equation, PV = nRT.

P = pressure (645 mmHg)

V = volume (?)

n = amount of substance (3.00 mol)

R = ideal gas constant (62.4 L mmHg/mole K)

T = temperature (295K)

Now we would plug in the appropriate numbers into the equation using the information given and solve for V.

(645)(V) = (3.00)(62.4)(295)

(V) = (3.00)(62.4)(295)/645

V = 85.619 L

6 0
3 years ago
Storm surge, high wind, heavy rains which is most dangerous
Ymorist [56]
The answer is storm surge

6 0
3 years ago
Read 2 more answers
How is the precision of a calculated result related to the precision of the measurement used in the calculation?
sashaice [31]

The precision of a calculated answer is limited by the least precise measurements used in the calculation.

Hope this helps :)

7 0
3 years ago
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