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2 years ago

When Earth’s axis points away from the sun, the _________ Hemisphere has the longer days of summer.

Chemistry

1 answer:

Llana [10]2 years ago

3 0

Answer: northern hemisphere

Explanation: I looked it up. Plus I took a test with this question and when the teacher went over the answer i got it right.

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Which lists the substances from least to most acidic?

Rus_ich [418]

Answer:

A. Have an amazing day!!

Explanation:

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2 years ago

Why it is so hard to find life on other planets.

STatiana [176]

Answer:

Because people on earth may not have the correct technology.

Explanation:

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3 years ago

A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode c

Andre45 [30]

Answer: The standard potential of the cell is 0.77 V

Explanation:

We know that:

$E^o_{Ni^{2+}/Ni}=-0.25V\\E^o_{Cu^{+}/Cu}=0.52V$

The substance having highest positive $E^o$ reduction potential will always get reduced and will undergo reduction reaction.

The half reaction follows:

Oxidation half reaction: $Ni(s)\rightarrow Ni^{2+}(aq)+2e^-$

Reduction half reaction: $Cu^{+}(aq)+e^-\rightarrow Cu(s)$ ( × 2)

To calculate the $E^o_{cell}$ of the reaction, we use the equation:

$E^o_{cell}=E^o_{cathode}-E^o_{anode}$

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

Putting values in above equation follows:

$E^o_{cell}=0.52-(-0.25)=0.77V$

Hence, the standard potential of the cell is 0.77 V

5 0

2 years ago

Describe in your own words the purpose of the balance scales and bar charts in the simulation.

Alex

Answer:

I hope this helps!!

Explanation:

The purpose is to physically show the process of the chemical reaction's balance.

4 0

3 years ago

Write a short definition of hydrochloric acid

Stella [2.4K]

Answer:

Explanation:

a strongly acidic solution of the gas hydrogen chloride in water

3 0

2 years ago