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3 years ago

Which sample of water contains particles having the highest kinetic energy

Chemistry

2 answers:

rjkz [21]3 years ago

4 0

Answer:a

Explanation:

Ilya [14]3 years ago

3 0

Answer:It got to be C

Explanation: 75ml of water is

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Which TWO are most likely to form a compound? C Mg S Ar

lbvjy [14]

Answer is Mr and S as MgS ..

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3 years ago

Which of the following chemical equations is balanced?

muminat

Answer:

A, 4Fe 3O2 → 2Fe2O3

5 0

3 years ago

The ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. in t

Debora [2.8K]

The complete balanced chemical equation is:
4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g)

In statement form: 4mol NH3 reacts with 5 mol O2 to produce 6 mol H2O

First let us find for the limiting reactant:
>molar mass NH3 = 17 g/mol
moles NH3 = 54/17 = 3.18 mol NH3
This will react with 3.18*5/4 = 3.97 mol O2

>molar mass O2 = 32g/mol
moles O2 = 54/32 = 1.69 mol O2
We have insufficient O2 therefore this is the limiting reactant

From the balanced equation:
For every 5.0 mol O2, we get 6.0 mol H2O, therefore

moles H2O formed = 1.69 mol O2 * 6/5 = 2.025 mol
Molar mass H2O = 18g/mol
mass H2O formed = 2.025*18 = 36.45 grams H2O produced

8 0

3 years ago

Read 2 more answers

The most important commercial ore of chromium is chromite (FeCr2O4). One of the steps in the process used to extract chromium fr

Mars2501 [29]

Answer:

1 mole FeCr2/ 1 mole FeCr2O4

Explanation:

We have to write down the equation of the reaction before we can answer the question;

2C(s) + FeCr2O4(s) -------> FeCr2(s) + 2CO2(g)

By inspection of this reaction equation, we can clearly see that the mole ratio of the reactants and products is 2:1:1:2.

Specifically, the ratio of chromites to ferrochrome is 1:1

Hence;

The mole ration required to convert chromites to ferrochrome is;

1 mole FeCr2/ 1 mole FeCr2O4

4 0

3 years ago

What mass of agno3 can be dissolved in 250g of water at 20°c?

Mice21 [21]

Hello there,

You should know the solubility of AgNO3 in water at 20°C equals to 2220 g/L.

So we can say that in 1 L of water, 2220 g of AgNO3 can be dissolve.

Now you should know 1L = 1000g.

Which means 1000 g of water can dissolve 2220 g of AgNO3.

Therefore :

250 g --> x
1000 g --> 2220 g

So : $x = \frac{250*2220}{1000} = \frac{555000}{1000}= 555g$ .

In short, 555g of AgNO3 can be dissolved in 250g of water at 20°C.

Hope this helps !

Photon

4 0

3 years ago