3 years ago

The Lewis dot model of a metal atom has two dots. Which of the following is true about the atom?

Chemistry

2 answers:

a_sh-v [17]3 years ago

7 0

Answer:

It is present in the second group of the periodic table

Explanation:

podryga [215]3 years ago

6 0

Answer: that there are two valence electrons

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What is electrolysis

cestrela7 [59]

Answer:

Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell

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3 years ago

A 25.0 ml solution of .0600 M EDTA was added to a 57.0 ml sample containing an unknown concentration of V3+. All V3+ present for

Rom4ik [11]

Explanation:

Let us assume that the ratio for the given reaction is 1:1.

Therefore, we will calculate the moles of $Ga^{3+}$ as follows.

Moles of $Ga^{3+}$ solution = molarity × volume (L)

= 0.0440 M × 0.014 L

= 0.000616 moles

Moles of excess EDTA = 0.000616 moles

Also, the initial moles of EDTA will be calculated as follows.

Total initial moles of EDTA = 0.0600 M × 0.025 L

= 0.0015

Therefore, moles of EDTA reacted with $V^{3+}$ will be as follows.

= 0.0015 - 0.000616

= 0.00088 moles

Since, we have supposed a 1 : 1 ratio between $V^{3+}$ and EDTA .

So, moles of $V^{3+}$ = 0.00088 moles

Now, we will calculate the molarity of $V^{3+}$ as follows.

Molarity of $V^{3+}$ solution = $\frac{\text{moles}}{\text{volume (L)}}$

= $\frac{0.00088 moles}{0.057 L}$

= 0.015 M

Thus, we can conclude that the original concentration of the $V^{3+}$ solution is 0.015 M.

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3 years ago

Which half-reaction is most easily reduced? A. Al3+ + 3e- Al = -1.66 V B. Cu2+ + 2e- Cu = 0.34 V C. Fe3+ + e- Fe2+ = 0.77 V D. N

mario62 [17]

use the website math papa it works

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3 years ago

What is shown in the diagram?

lukranit [14]

Its a Generator

It generates an electrical current using a battery.

A motor generates a mechanical current that you have to physically generate yourself.

Hope this helps! :)

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3 years ago

Read 2 more answers

Hclo is a weak acid (ka = 4.0 × 10–8) and so the salt naclo acts as a weak base. what is the ph of a solution that is 0.089 m in

Anuta_ua [19.1K]

Answer: 14

Explanation:

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3 years ago