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ycow [4]
4 years ago
8

Why is Mars visible from earth in the night sky

Chemistry
1 answer:
Studentka2010 [4]4 years ago
7 0
<span>You can see mars in the night sky because it is a very bright planet. Mars is as bright, or brighter than the stars. Yes, all planets are pretty bright, but mars in beyond bright along with jupiter, mercury, etc. Hope this helped! :)</span>
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What tool is also known as a "turner"
stepladder [879]
Another tool known as a turner is a Spatula.
6 0
3 years ago
Which value would be required to estimate the lattice energy for the hypothetical ionic compound MgH2?
Sonja [21]
D, the energy of formation is equal to the dissociation. so from magnesium ions and Hydrogen ions, when they form the lattice energy is equal to formation-dissociation, as they aren't going to dissociate (fixed in lattice) the formation should be the same as the the overall lattice energy. 
8 0
3 years ago
7. Indicate if the following are correct or incorrect.
solong [7]

Answer:

1s2: correct.

6s3: incorrect because the subshell s can hold up to 2 electrons.

5f10: correct.

4d3: correct.

2d4: incorrect because the second energy level just has the s and p subshells.

3p10: incorrect because the p subshell can hold up to 6 electrons.

Explanation:

Hello there!

In this case, according to the attached file, which shows the correct orbitals and electrons, we can proceed as follows:

1s2: correct.

6s3: incorrect because the subshell s can hold up to 2 electrons.

5f10: correct.

4d3: correct.

2d4: incorrect because the second energy level just has the s and p subshells.

3p10: incorrect because the p subshell can hold up to 6 electrons.

Best regards!

5 0
3 years ago
3 mL is equal to:<br> a.3 cm 2<br> b.3L<br> c.3 cm 3
NeTakaya

Answer:

C

Explanation:

1mL = 1cm

3 * 1 = 3cm³

We use "³" because we are working with units that represent volume.

Best of Luck!

8 0
3 years ago
Describe one way the respiratory and nervous system work together​
DiKsa [7]
<h2>♨ANSWER♥</h2>

The respiratory system supplies oxygen to the blood and removes carbon dioxide. The brain monitors respiratory volume and blood gas levels. The brain regulates respiratory rate.

<u>☆</u><u>.</u><u>.</u><u>.</u><u>hope this helps</u><u>.</u><u>.</u><u>.</u><u>☆</u>

_♡_<em>mashi</em>_♡_

7 0
2 years ago
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