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Bingel [31]
4 years ago
6

. The compound Fe(NO3)3(s) is classified as a(n):?. a. polyatomic compound. b. molecular compound. c. ionic compound. d. multi-a

tomic compound
Chemistry
1 answer:
patriot [66]4 years ago
5 0
<span>the best answer is C i.e is ionoic compound. but all other option sare quite close enough but option  B is sure wrong. because A molecular compound does not separate in a solvent.</span>
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A sample of hydrogen gas has a pressure of 1.50 atm with a volume of 5.00 L, what is the pressure if the volume is expanded to 7
miss Akunina [59]

Answer:

The pressure is 0,97 atm

Explanation:

We apply Boyle Mariotte's Law, where for a certain mass of gas, at constant temperature, the pressure and volume vary inversely proportionally:            P1x V1 = P2 x V2 P2= (P1 x V1)/V2

P2 = 1, 50 atm x 5, 00 L /7,74 L

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6 0
3 years ago
Why do grazing animals still need to migrate?
Umnica [9.8K]

1. because eventually the grass/food they are eating will loose its nutrients from eating it all the time and they need to migrate to find better food

2. the weather

3. their predators may migrate to the place they are and they need to migrate in order to have a better chance of survival

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8 0
3 years ago
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8 0
3 years ago
The molecular weight of a gas that has a density of 5.75 g/l at stp is __________ g/mol.
Ira Lisetskai [31]

Answer : The molecular weight of a gas is, 128.9 g/mole

Explanation : Given,

Density of a gas = 5.75 g/L

First we have to calculate the moles of gas.

At STP,

As, 22.4 liter volume of gas present in 1 mole of gas

So, 1 liter volume of gas present in \frac{1}{22.4}=0.0446 mole of gas

Now we have to calculate the molecular weight of a gas.

Formula used :

\text{Moles of gas}=\frac{\text{Mass of a gas}}{\text{Molecular weight of a gas}}

Now put all the given values in this formula, we get the molecular weight of a gas.

0.0446mole=\frac{5.75g}{\text{Molecular weight of a gas}}

\text{Molecular weight of a gas}=128.9g/mole

Therefore, the molecular weight of a gas is, 128.9 g/mole

8 0
3 years ago
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If A and B are directly proportional and the value of A becomes 3 times as much, what happens to B
dolphi86 [110]
B gets multiplied 3 times as much aswell. (brainly pls) :D
3 0
3 years ago
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