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3 years ago

Hydrogen and nitrogen react to form ammonia. Which statement best

1 answer:

3 0

<h2>Hydrogen and nitrogen react to form ammonia. The statement that best </h2><h2>describes the reactants and product at equilibrium: (A)The concentration of hydrogen and nitrogen equals the ammonia </h2><h2>concentration</h2>

Explanation:

Reversible reaction

The reaction that can occur in either way that is the reactants can also form products and the same time products can combine to form reactants back.

That is :

A +B--> C+D

At the same time this reaction also occurs :

C+D-->A +B

In reversible reactions the stage is reached , where concentration of reactants become equal to concentration of products .That stage is called "Equilibrium state ".

In the above asked question : Formation of ammonia is a reversible reaction and in this also equilibrium is achieved where concentration of reactants and products become equal but reaction doesn't stop .

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Which describes how technology has changed society?

Anton [14]

Answer:

B. People live longer than they used to

Explanation:

None of the other answers are correct.

7 0

3 years ago

A chemist prepares a solution of copper(II) sulfate CuSO4 by measuring out 31.μmol of copper(II) sulfate into a 150.mL volumetri

baherus [9]

Answer:

The concentration of the copper (II) sulfate solution is 2.06 * 10^2 μmol/L or 2.06 * 10^2 μM

Explanation:

The concentration of a solution is the amount of solute dissolved in a given volume of solution. In this case, the concentration of the copper(II) sulfate solution in micromoles per liter (symbol ) is the number of micromoles of copper(II) sulfate dissolved in each liter of solution. To calculate the micromoles of copper(II) sulfate dissolved in each liter of solution you must divide the total micromoles of solute by the number of liters of solution.

Here's that idea written as a formula: c= n/V

where c stands for concentration, n stands for the total micromoles of copper (II) sulfate and V stands for the total volume of the solution.

You're not given the volume of the solution in liters, but rather in milliliters. You can convert milliliters to liters with a unit ratio: V= 150. mL * 10^-3 L/ 1 mL = 0.150 L

Next, plug in μmol and liters into the formula to divide the total micromoles of solute by the number of liters of solution: c= 31 μmol/0.150 L = 206.66 μmol/L

Convert this number into scientific notation: 2.06 * 10^2 μmol/L or 2.06 * 10^2 μM

3 0

2 years ago

The refrigerator has no room to cool the meat you've just cooked you should

stealth61 [152]

If the refrigerator has no room to cool the meat that you've just cooked, then you should clear it with other stuff or food that has not been consumed for days. There might be some goods that are not good for consumption anymore even though it has been placed in the ref for a couple of days. Hope this answers your question.

7 0

3 years ago

Hydrogen iodide is not produced by the same method is for hydrogen chloride why with reaction

Masja [62]

Using Phosphoric acid will work perfectly for producing Hydrogen halides because its not an Oxidizing agent. ...

Using an ionic chloride and Phosphoric acid

H3PO4 + NaCl ==> HCl + NaH2PO4

H3PO4 + NaI ==> HI + NaH2PO4

H2SO4 + NaCl ==> HCl + NaHSO4

This method(Using H2So4) will work for all hydrogen hydrogen halide except Hydrogen Iodide and Hydrogen Bromide.

The Sulphuric acid won't be useful for producing Hydrogen Iodide because its an OXIDIZING AGENT. Whist producing the Hydrogen Iodide... Some of the Iodide ions are oxidized to Iodine.

2I-² === I2 + 2e-

5 0

3 years ago

How many neutrons are present in a nucleus whose atomic number is one and whose mass number is one?

nekit [7.7K]

Because the proton has a mass of 1 and a neutron has a mass of 1, we know that there is exactly one proton in the nucleus (because of the atomic number) which therefore tells us there are no neutrons as adding one would make the mass more than one.

8 0

3 years ago