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melomori [17]
3 years ago
10

What is chemical formula for: Iron (III) fluoride

Chemistry
1 answer:
True [87]3 years ago
6 0

Answer:

FeF3

Explanation:

You have to break this problems down and know the naming rules.

- symbol for iron - Fe

- symbol for fluoride - F

- Add together - FeF

- Now, add the 3

- FeF3

- Hope that helps! Please let me know if you need further explanation.

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Answer:

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3 years ago
A student was asked to find the density of an unknown object. The student found that the mass of the object was 35.49 g. The stu
marusya05 [52]

Answer:

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8 0
3 years ago
The following thermochemical equation is for the reaction of sodium(s) with water(l) to form sodium hydroxide(aq) and hydrogen(g
ra1l [238]

Answer:

1) When 6.97 grams of sodium(s) react with excess water(l), 56.0 kJ of energy are evolved.

2) When 10.4 grams of carbon monoxide(g) react with excess water(l), 1.04 kJ of energy are absorbed.

Explanation:

1) The following thermochemical equation is for the reaction of sodium(s) with water(l) to form sodium hydroxide(aq) and hydrogen(g).

2 Na(s) + 2H₂O(l) ⇒ 2NaOH(aq) + H₂(g) ΔH = -369 kJ

The enthalpy of the reaction is negative, which means that 369 kJ of energy are evolved per 2 moles of sodium. The energy evolved for 6.97 g of Na (molar mass 22.98 g/mol) is:

6.97g.\frac{1mol}{22.98g} .\frac{-369kJ}{2mol} =-56.0kJ

2) The following thermochemical equation is for the reaction of carbon monoxide(g) with water(l) to form carbon dioxide(g) and hydrogen(g).

CO(g) + H₂O(l) ⇒ CO₂(g) + H₂(g)  ΔH = 2.80 kJ

The enthalpy of the reaction is positive, which means that 2.80 kJ of energy are absorbed per mole of carbon monoxide. The energy evolved for 10.4 g of CO (molar mass 28.01 g/mol) is:

10.4g.\frac{1mol}{28.01g} .\frac{2.80kJ}{mol} =1.04kJ

3 0
4 years ago
.ASAPPP
kati45 [8]

Answer:

b

Explanation:

5 0
3 years ago
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alexandr402 [8]
No. You shouldn't place materials that have toxic fumes because it can get in people's lunges through breathing.
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