2 years ago

Please help ill give brainliest

Chemistry

2 answers:

boyakko [2]2 years ago

5 0

Answer: The answer to the first one is the second option and the answer for the second one is the first option.

Explanation:

hram777 [196]2 years ago

3 0

The answer to the first one is b the answer to the second one is a

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Please help will mark you brainiest! Use word bank when answering the question!

zheka24 [161]

Answer:

Blank 1: varying

Blank 2: constant

Explanation:

7 0

2 years ago

Help?

ss7ja [257]

Newton's F=ma, which means the force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a)

Explanation:

F = ma, or force is equal to mass times acceleration.

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2 years ago

What type of reaction is: br2 + nal2 ---> nabr + l2

Furkat [3]

Answer: its a single replacement reaction

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2 years ago

Can someone explain to me step by step with the equation on how to do it thx

Tasya [4]

Answer:

h=1

c=12

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2 years ago

Tarnish on copper is the compound CuO. A tarnished copper plate is placed in an aluminum pan of boiling water. When enough salt

Jet001 [13]

Answer: 2.00 V

Explanation:

The balanced redox reaction is:

$2Al+3Cu^{2+}\rightarrow 2Al^{3+}+3Cu$

Here Al undergoes oxidation by loss of electrons, thus act as anode. Copper undergoes reduction by gain of electrons and thus act as cathode.

$E^0=E^0_{cathode}- E^0_{anode}$

Where both $E^0$ are standard reduction potentials.

$Al^{3+}+3e^-\rightarrow Al$ $E^0_{[Al^{3+}/Al]}=-1.66V$

$Cu^{2+}+2e^-\rightarrow Cu$ $E^0_{[Cu^{2+}/Cu]}=0.340V$

$E^0=E^0_{[Cu^{2+}/Cu]}- E^0_{[Al^{3+}/Al]}$

$E^0=+0.34- (-1.66V)=2.00V$

Thus the standard cell potential is 2.00 V

6 0

2 years ago