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Andreyy89
3 years ago
15

What decision did George make?

Chemistry
2 answers:
Nata [24]3 years ago
8 0

Answer:

(2) never to be so irresponsible again

Explanation: hope this help!

iragen [17]3 years ago
6 0

Answer:

never to be so irresponsible again. is it right.

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Erosion and weathering can both cause changes to the surface of Earth. Which of the following happens only because of erosion an
dangina [55]

Answer:

caves

Explanation:

BRAINLIEST

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7 0
3 years ago
Sodium phosphate and calcium chloride react to form sodium chloride and calcium phosphate. If you have 379.4 grams of calcium ch
barxatty [35]

Answer: 353.6 g.


Explanation:


1) Word equation (given)

Sodium phosphate + calcium choride → sodium chloride + calcium phosphate


2) Balanced chemical equation

2 Na₃PO₄ +3 CaCl₂ → 6 NaCl + Ca₃(PO4)₂


3) Mole ratio

2 moles Na₃PO₄ : 3 moles CaCl₂ :  6 moles NaCl : 1 mole Ca₃(PO4)₂


4)  Formula to convert grams to moles

number of moles = mass in grams / molar mass


5) Number of moles of limiting reactant

a) mass in grams = 379.4 g CaCl₂

b) molar mass CaCl₂ = 110.98 g/mol

c) number of moles CaCl₂ = 379.4 g / 110.98 g/mol = 3.419 moles


6) Theoretical yield of Ca₃(PO4)₂

    3 moles CaCl₂ / 1 mole Ca₃(PO4)₂ = 3.419 moles CaCl₂ / x ⇒

    x = 3.419 × 1 / 3 = 1.140 moles Ca₃(PO4)₂


7) Convert 1.140 moles Ca₃(PO4)₂

a) molar mass Ca₃(PO4)₂ = 310.1767 g/mol

b) mass in grams = number of moles × molar mass = 1.140 moles × 310.1767 g/mol = 353.6 g ← answer.

7 0
3 years ago
Fill in the blanks in the following sentences:
Nezavi [6.7K]

Answer:

a. neutral

b. basic /alkaline

c. acidic

4. 13

4 0
3 years ago
How many atoms of Hydrogen are in 67.2 L of H2 at STP?​
nekit [7.7K]

Answer:

this answer is hard cant answer

5 0
3 years ago
Look at the image shown.
Charra [1.4K]
Where’s the image sorry this isn’t much help but I don’t know what to answer if I can’t see the image
6 0
2 years ago
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