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UkoKoshka [18]
3 years ago
11

How is electrovalent bond form​

Chemistry
1 answer:
Ahat [919]3 years ago
5 0

formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

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Express the following number in scientific notation: 0.000000675.
tekilochka [14]
There are 7 digits from decimal to 1st digit, and it's coming from right, so exponent will be in negative 7

In short, Your Answer would be: Option C) <span>6.75 × 10-7
</span>
Hope this helps!
6 0
4 years ago
What volume of a 0.2089 M KI solution contains enough KI to react exactly with the Cu(NO3)2 in 40.88 mL of a 0.3842 M solution o
tatyana61 [14]

Explanation:

As molarity is the number of moles placed in a liter of solution. Therefore, no. of mole = Molarity × volume of solution in liter

Hence, moles of Cu(NO_{3})_{2} will be calculated as follows.

No. of mole of Cu(NO_{3})_{2} = 0.3842 M \times 0.04388 L = 0.0168 mole

According to the given reaction, 2 mole of Cu(NO_{3})_{2} react with 4 mole of KI.

Therefore, for 0.0168 mole amount of Cu(NO_{3})_{2} required will be as follows.

Cu(NO_{3})_{2} = 0.0168 \times \frac{4}{2}

                       = 0.0337 mole of KI

Hence, volume of KI required will be calculated as follows.

               Volume = \frac{\text{no. of moles}}{Molarity}

    Volume of KI = \frac{0.0337}{0.2089}

                           = 0.1614 liter

                            = 161.4 ml            (as 1 L = 1000 mL)

Thus, we can conclude that 161.4 ml  volume of a 0.2089 M KI is required for the given situation.

5 0
4 years ago
Two substances that a green plant must obtain from its environment to carry on photosynthesis
mafiozo [28]

Answer:

Carbon Dioxide and Water

4 0
3 years ago
List the substances ar, cl2, ch4, and ch3cooh, in order of increasing strength of intermolecular attractions.
Lady_Fox [76]
I believe it is:
CH4
Ar
Cl2
CH2COOH

I hope this helps :)
3 0
3 years ago
Read 2 more answers
5) Solid lithium metal is added to an aqueous solution of magnesium chloride forming lithium chloride solution and
Tresset [83]

Answer:

b

Explanation:

What does lithium and chlorine make?

While not a normal route of preparation because of the expense, lithium metal reacts vigorously with all the halogens to form sodium halides. So, it burns with chlorine, Cl2, to form lithium(I) chloride, LiCl. 2Li(s) + Cl2(g) → 2LiCl(s)

3 0
3 years ago
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