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AleksAgata [21]
2 years ago
15

You can find the pH of a substance by using

Chemistry
1 answer:
soldier1979 [14.2K]2 years ago
8 0
The correct answer is C. Litmus Indicator 
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Oxidation number of Mg3N2
Fudgin [204]

Answer:

n=-3

Explanation:

Mg = +2  

3(+2) + 2N = 0  

N = -3

8 0
3 years ago
How many moles of methanol are required to produce 4.19 moles of water
Harrizon [31]

Explanation:

every two moles of methanol will need three moles of oxygen gas and products 2 miles of carbon dioxide and 4 miles of water

6 0
3 years ago
Pls help me I don’t know what to dooooo
Ivan
Molarity = moles of solute/volume of solution in liters.

The solute here is NaCl, of which we have 46.5 g. To calculate the molarity of an NaCl solution, we need to know the number of moles of NaCl. To convert from grams to moles, we divide the mass by the molar mass of NaCl. The molar mass of NaCl is the sum of the atomic masses of Na and Cl: 23 amu + 35 amu = 58 amu. For our purposes, we can regard amu as equivalent to grams/mole.

(46.5 g)/(58 g/mol) = 0.8017 moles NaCl.

Now that we know both the number of moles of our NaCl solute and the volume of the solution, we can calculate the molarity:

(0.8017 moles NaCl)/(2.2 L) = 0.364 M.
5 0
3 years ago
A sample of a gas is kept at constant pressure while
Ahat [919]

Explanation:

here's the answer to your question

5 0
2 years ago
What would be an evidence of release in energy?
shusha [124]
A heater letting of heat is an example of release of energy. Please comment if you have any questions about my answer.<span />
6 0
3 years ago
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