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gtnhenbr [62]
3 years ago
8

PLEASE HELP ME QUICKLY!!!!!

Chemistry
2 answers:
Artyom0805 [142]3 years ago
3 0

Answer:

B. 30 grams

Explanation:

I have had this question and I got it wrong but I looked back and I found the right answer.

kumpel [21]3 years ago
3 0

Answer:

b.. 30 grams

Explanation:

just trust

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An electrochemical cell is powered by the half reactions shown below.
andrezito [222]
Reduction reactions are those reactions that reduce the oxidation number of a substance. Hence, the product side of the reaction must contain excess electrons. The opposite is true for oxidation reactions. When you want to determine the potential difference expressed in volts between the cathode and anode, the equation would be: E,reduction - E,oxidation. 

To cancel out the electrons, the e- in the reactions must be in opposite sides. To do this, you reverse the equation with the negative E0, then replacing it with the opposite sign. 

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3 years ago
Which property do metalloids share with non metals?
mamaluj [8]

Answer:

their ability to conduct heat and electricity.

Explanation:

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If the concentration of h uons were to decrease what would happen to the oh ions
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<span>If the concentration of H⁺ ions will decrease then the concentration of OH⁺ ions will increase.</span>
3 0
3 years ago
If your car gets 30.3 mi/gal, how many gallons of gasoline would you use if you drove 506.3 miles? 1 mile = 5280 ft (exactly) In
Salsk061 [2.6K]

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4 0
3 years ago
Read 2 more answers
How many milliliters of a 3.0 M HCL solution are required to make 250.0 millimeters of 1.2 M HCL?
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The problem above can be solved using M1V1=M2V2  where M1 is the concentration of the concentrated, V1 is the volume of the concentrated solution, M2 is the concentration of the Dilute Solution, V2 is the Volume of the dilute solution. Hence,

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Therefore, you need 100 mL of 3.0 M HCl to form a 250 mL of 1.2 M HCl.
7 0
3 years ago
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