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creativ13 [48]
3 years ago
11

A plane mirror is useful for seeing:

Chemistry
1 answer:
AURORKA [14]3 years ago
6 0
C. A nearly identical image.
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Which of the following is a unit of volume of solids?
Anika [276]

Answer:

<h3>,,,,,,Cubic meters ,,,</h3><h3 />
7 0
3 years ago
Select all that apply. choose the two correct statements below. the elements of the halogen family are very reactive because: th
Harman [31]
Halogens are a group of elements consisting of Fluorine, Chlorine, Bromine, Iodine and Astatine. In their ionic form, they have a superscript of -1, for example, chloride ion is Cl-1. These means that they readily accept one electron in order to achieve the Octet rule. The Octet rule states that each atom must contain 8 electrons in their valence shell for it to be stable. The most stable set of elements are the noble gases. Because they already fulfill the Octet rule, they no longer take part in reactions. Halogens are also very electronegative, meaning, they attract more electrons toward them. This is also a consequence of the Octet rule.

From the choices, the answers would be:
<span>they require only one electron to complete their outer shell
they have a high electronegativity</span>
6 0
3 years ago
An atom of oxygen (atomic number 8) has a mass number of 17. How many neutrons are<br> in that atom?
ludmilkaskok [199]
<h2>Answer:  # of neutrons = 9</h2>

<h3>Explanation:</h3>

# of neutrons = mass number - atomic number

                      = 17 - 8

                      = 9

<h3>∴ number of neutrons in an atom of oxygen of mass number 17, is 9.</h3>
3 0
2 years ago
A student wants to remove the salt from a mixture of sand and salt in order to get only pure sand. He adds water to the mixture.
raketka [301]

Answer:

Here is one way: Add water to the mixture. Only the sugar dissolves. This is a physical change.

Explanation:

The sugar would dissolve in water. You could then pour off the solution and wash the remaining sand with a bit more water. Heat the water to evaporate it from the sugar, and the two are separated.

5 0
3 years ago
Read 2 more answers
Answer choices are A. Constant speed<br> B. Stopped<br> C.Moving sideways<br> D.Accelerating
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B.stopped
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