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Eva8 [605]
2 years ago
15

Write a net ionic equation for the following:

Chemistry
1 answer:
Ann [662]2 years ago
6 0

Explanation:

Al(OH)4-(aq) plus 4H plus (aq) and Al3 plus (aq) plus 4H20(I)

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Name the two types of sub-atomic particle in the nucleus of an atom.
Talja [164]
The name of the sub-atomic particles in the nucleus of atom are protons and neutrons


Hope it helps you!!!!
5 0
3 years ago
How much energy in joules is released when 18.5 grams of copper cools from 285 °C<br> down to 45 °C
nadya68 [22]

Answer: 1709.4 Joules

Explanation:

The quantity of Heat Energy (Q) released on cooling a heated substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since Q = ?

M = 18.5 grams

Recall that the specific heat capacity of copper C = 0.385 J/g.C

Φ = 285°C - 45°C = 240°C

Then, Q = MCΦ

Q = 18.5grams x 0.385 J/g.C x 240°C

Q = 1709.4 Joules

Thus, 1709.4 Joules is released when copper is cooled.

5 0
3 years ago
What do a mole of magnesium and a mole of iron have in common
lukranit [14]
What they have in common is that they both have the same number of atoms. Hope this helps. :)
7 0
3 years ago
Vegetarian diets can provide high levels of antioxidants and a lipid profile that can help prevent coronary disease. However, th
Sati [7]

Answer: the best statement is 1 (Vitamin B12 (cobolamin) is missing from the vegan diet and very low in the lactovegetarian diet.)

Explanation:

Vitamin B12( cobalamin) is a water soluble vitamin that is essential in the formation of red blood cells. It also serves as a coenzyme in the metabolic reaction of the body. Such reaction includes:

- the remethylation of methionine from homocysteine which is catalyzed by methionine synthase and requires methylcobalamin.

The deficiency of vitamin B12 can lead to the following:

- elevated homocysteine ,

- an increase in methylmalonate

This is due to deficiencies in methionine synthase and methylmalonic acid mutase, respectively in individuals on vegan diet for several years.

Vegans are vegetarians that don't include diary or animal products in their meals. This predisposes them to lack of Vitamin B12. Dairy products provide some vitamin B12 in the lactovegetarian diet. Therefore statement 1 is the correct answer, thanks.

7 0
3 years ago
PLEASE HELP NO LINKS OR FILES
podryga [215]

Answer:

Rise surface fall surface rise

Explanation:

Hope this helps!

5 0
3 years ago
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