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3 years ago

E.) MO(NO2)3 What’s the name

Chemistry

1 answer:

astraxan [27]3 years ago

4 0

Answer:

Molybdenum Nitrite

Explanation:

Mo => Molybdenum

NO2 => Nitrite

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What is the ph of 0.001 m NaOH

julsineya [31]

Answer:

11.

Explanation:

For 0.001 M NaOH:

[OH⁻] = 0.001 M.

∵ pOH = - log[OH⁻]

∴ pOH = - log(0.001 M) = 3.

∴ pH = 14 - pOH = 14 - 3 = 11.

8 0

3 years ago

Converting the following mm Hg (torr) to standard

11Alexandr11 [23.1K]

Explanation:

Given:

20.5 torr

78.6 torr

225 torr

Change into atm

Computation:

We know that;

1 torr = 0.00131579 atm

So,

1. 20.5 torr

= 20.5 x 0.00131579 atm

= 0.02697

= 0.027 atm (Approx)

2. 78.6 torr

= 78.6 x 0.00131579 atm

= 0.103090

= 0.103 atm (Approx)

3. 225 torr

= 225 x 0.00131579 atm

= 0.2960

= 0.296 atm (Approx)

5 0

3 years ago

In which of the following is the number of neutrons correctly represented? A. fluorine: atomic number 9, mass 19, neutrons 0 B.

Digiron [165]

D. uranium: atomic number 92, mass 238, neutrons 146

238-92=146

4 0

3 years ago

Read 2 more answers

NEED HELP with 7. 8. 9. 10. 11. 12. And 14 !!

aleksley [76]

Answer:

1. 0.00040 calories

2. 8.57 calories

3. 0.196 calories

4. 68 calories

5. 243 calories

6. 83680 joules

7. 1,054,368 joules

8. 2.45 calories

9. 556 (it says calories to calories so it wouldn't change)

10. 28367.52 joules

11. 59.6 calories

12. 449.6 joules

13. 0.00234 calories

14. 23292.328 joules

15. 22877693.6 joules

Hope this helps!

Explanation:

6 0

3 years ago

If an element is a reactant or product in a chemical reaction, the reaction must be an oxidaton-reduction reaction. Why is this

Bezzdna [24]

Explanation:

Oxidation reduction reactions are the reactions in which one specie oxidizes and other reduces.

For example,

$2Na+2HCl\rightarrow H_2+2NaCl$

This is a oxidation reduction reaction because sodium in elemental state ( 0 oxidation state) oxidizes to Na⁺ in NaCl. Also H⁺ in HCl reduces to H° in H₂.

Elements are present in 0 oxidation state and either it is formed or consumed, its oxidation state has to be changed for a chemical reaction to occur. Hence, it is true.

8 0

4 years ago