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lapo4ka [179]
2 years ago
10

What property can be used to tell the difference between two minerals, if they have the same hardness?

Chemistry
1 answer:
kotegsom [21]2 years ago
6 0
Some properties to differentiate between the minerals include:

Ductility
Malleability
Luster
Particle Size
Ability to react with chemicals
etc....
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For the reaction of ammonia (NH3) with oxygen (O2) to produce water and nitric oxide (NO), how many moles of water are produced
asambeis [7]

Answer:

3.3 moles of H₂O.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

4NH₃ + 5O₂ —> 6H₂O + 4NO

From the balanced equation above,

4 moles of NH₃ reacted to produce 6 moles of H₂O.

Finally, we shall determine the number of mole of H₂O produced by the reaction of 2.2 moles of NH₃. This can be obtained as follow :

From the balanced equation above,

4 moles of NH₃ reacted to produce 6 moles of H₂O.

Therefore, 2.2 moles of NH₃ will react to produce = (2.2 × 6)/4 = 3.3 moles of H₂O.

Thus, 3.3 moles of H₂O were obtained from the reaction.

7 0
2 years ago
The pH of normal rainwater is
riadik2000 [5.3K]
The pH of normal rainwater is 5.6. It's slightly acidic
3 0
3 years ago
Read 2 more answers
A student titrates 10.00 milliliters of hydrochloric acid of unknown molarity with 1.000 m naoh. it takes 21.17 milliliters of b
Dima020 [189]
Mole ratio for the reaction is 1:1
no of moles in NaOH that reacted= 1*21.17/1000=0.02117mols
 molarity of HCl=0.02117*10/1000
                         =2.117M
4 0
3 years ago
Compared to a sample of helium at STP, the same sample of helium at a higher temperature and a lower pressure A) condenses to a
zhuklara [117]

Answer:

Option D is correct.

Explanation:

Compared to a sample of helium at STP, the same sample of helium at a higher temperature and a lower pressure because any gas at a higher temperature and a lower pressure will  behaves like  an ideal gas. for eg.

nitrogen at STP show its behavior as an ideal gas.

When pressure of a gas increased & temperature is decreased then the gas does not follow ideal gas law.

Therefore option D is correct.

4 0
3 years ago
Suppose that 26.89 ml of vinegar solution requires 33.23 ml of the 0.09892 m sodium hydroxide solution to reach the endpoint. ca
nata0808 [166]
Number of millimoles of NaOH consumed in present titration =<span>33.23 X 0.09892
                                                                                                 = 3.287

Thus, number of millimoles of vinegar present in sample = 3.287

Now, Molarity of vinegar solution = </span>\frac{\text{number of millimoles of vinegar}}{\text{volume of solution (ml)}}
<span>                                                     = </span>\frac{3.287}{26.89}
<span>                                                     = 0.1222 mol/dm3

Molar concentration of vinegar present in sample solution is 0.1222 M </span>
5 0
3 years ago
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