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LUCKY_DIMON [66]
1 year ago
13

The ammonium ion has one nitrogen atom and four hydrogen atoms.

Chemistry
1 answer:
Rainbow [258]1 year ago
5 0

Answer:

1.) NH₄

Explanation:

Atoms are depicted by letters in chemical formulas. Nitrogen atoms are represented by the letter "N" and hydrogen atoms are represented by the letter "H". One letter indicates one atom.

As such, if there is 1 nitrogen atom and 4 hydrogen atoms in ammonium, the chemical formula is NH₄.

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Karolina [17]

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anzhelika [568]
Cocaine selectively blocks sodium channels which is the mechanism that leads to local anesthetic effects. 
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4 years ago
The following reaction is at equilibrium in a sealed container.
ale4655 [162]

Answer:

D.Lowering the temperature is the best option.

Explanation:

The value of equilibrium constants aren't changed with change in the pressure or concentrations of reactants and products in equilibrium. The only thing that changes the value of equilibrium constant is a change of temperature.

In the reaction below for example;

A + B <==>C+D

If you have moved the position of the equilibrium to the right (and so increased the amount of C and D), why hasn't the equilibrium constant increased?

Let's assume that the equilibrium constant mustn't change if you decrease the concentration of C - because equilibrium constants are constant at constant temperature. Why does the position of equilibrium move as it does?

If you decrease the concentration or pressure of C, the top of the Kc expression gets smaller. That would change the value of Kc. In order for that not to happen, the concentrations of C and D will have to increase again, and those of A and B must decrease. That happens until a new balance is reached when the value of the equilibrium constant expression reverts to what it was before.

3 0
3 years ago
A student rides a bicycle 240 meters in 4 minutes to get to school what is the student's speed?
pantera1 [17]

Answer:

The student's speed is 60 mph.

Explanation:

All you have to do is divide: 260/4 = 60 mph.

6 0
3 years ago
The number of molecules in one mole of a substance The number of molecules in one mole of a substance depends on the molecular w
vovikov84 [41]

Answer: is the same for all substances.

Explanation:

The number of molecules in one mole of a substance is the same for all substances because

A mole (which is  the quantity of a substance that has the same number (Avogadro's number, is 6.022 * 10^23) of particles as are found in 12.000 grams of carbon-12 of the substance)  for any substance has  the same number of atoms, molecules, or ions contained in any other substance.

1 mole = 6.022 x 10^23 atoms, molecules, or ions

4 0
3 years ago
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