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Rom4ik [11]
4 years ago
15

Is fire hot or cold??????????????????

Chemistry
2 answers:
stiks02 [169]4 years ago
6 0
I tried it it was hot
tankabanditka [31]4 years ago
3 0
What kind of question is that it’s Hot
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What is the mass in grams of 5.25 x 1024 molecules of NaOH?
Colt1911 [192]

Answer: The mass is 348.8g

Explanation:

We begin by using Avogadro's number to convert the number of molecules of  Sodium Hydroxide to moles.

6.02 x 10∧23 molecules of NaOH -------> 1 mole of NaOH

∴ 5.25 x 10∧24 molecules of NaOH -------> 1/ 6.02 x 10∧23 x 5.25 x 10∧24 =

                                                                    8.72moles.

Having found the number of moles, we then move from moles to gram by using the molar mass of NaOH (i.e the mass of 1 mole of NaOH).

1 mole of NaOH is equivalent to 40g (Molar Mass)

8.72 moles of NaOH would be equivalent to; 40/ 1  x 8.72 = 348.8g

The mass in 5.25 x 10∧24molecules of NaOH is 348.8g

4 0
3 years ago
Balance the following chemical reactions:
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4. MnO₂ + 4HCl → MnCl₂ + 2H₂O + Cl₂

5. Pb(NO₃)₂ + 2NaCl → PbCl₂ + 2NaNO₃

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NaCl+AgNO_3=>NaNO_3+AgC\downarrow

2)

CuSO_4+Cu_2Cl_2\neq>

CuSO_4+Cu_2l_2\neq

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What is the molecular formula for heptachlorine hexoxide
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Answer:

CI706

Explanation:

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Which of the following describes a Brønsted-Lowry base?
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__ Brainliest if helped! 

Bronsted-Lowry definition of Bases are Proton acceptors, 

or i.e. "A hydrogen ion acceptor" 

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4 years ago
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Question 11 (1 point)
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Blue to red is acidic, red to blue is basic and no change is neutral.
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