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yanalaym [24]
3 years ago
7

Cdvshduejsnxhhwjxhxh ydujdbxg

Chemistry
2 answers:
serious [3.7K]3 years ago
6 0

Answer:

byguygyguygbybybyb\:

Explanation:

(:

fiasKO [112]3 years ago
5 0

Answer:

This is not a question

Explanation:

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Calculate Delta n (change in moles of gaseous substances) for each of the following balanced chemical equations...
Lerok [7]
<span>2<span>C6</span><span>H6</span>O(l)+17<span>O2</span>−−>12C<span>O2</span>(g)+12<span>H2</span>O(l)</span>
<span>2S<span>O2</span>(g)+<span>O2</span>(g)−−>2S<span>O3</span>(g)</span>
<span><span>N2</span>(g)+<span>O2</span>(g)−−>2NO(g)</span>
<span>2Na(s)+B<span>r2</span>(l)−−>2NaBr(s)</span><span>
On the 1st 3 I have
12 -17 = -5
2 - 3 = -1
2 - 2 = 0
For the last one:
</span><span>Delta n=0</span><span>
</span>
3 0
3 years ago
What are the assumptions we make when using the gas collection apparatus in this lab? (Select all that apply)
stich3 [128]

We collect gas using special apparatus because most gasses cannot be seen, hence we may find it difficult to tell if our test tube is filled, and the best method to collect gas is through water.

One of the apparatus we use in collecting gas is pneumatic trough. A pneumatic trough is a piece of laboratory apparatus used for collecting gases, such as hydrogen, oxygen and nitrogen.

<em>Assumptions we make when using the gas collection apparatus</em>

The assumption we make is on the basis of the ideal gas assumption which are:

  • The gas consists of a large number of molecules, which are in random motion and obey Newton's laws of motion;
  • The volume of the molecules is negligibly small compared to the volume occupied by the gas; and
  • No forces act on the molecules except during elastic collisions of negligible duration.

For more information on the ideal gas assumption kindly visit

brainly.com/question/16829906

7 0
3 years ago
If you have 2.86 gallons of pure water, how many molecules of water are ionized at any given time ?
AleksandrR [38]

Answer:

The molar mass of water is 18 grams per mole. So in 18 grams of water, there are 6.02 x 1023 molecules.

One gallon of water is equal to 3.7854118 liters. If we assume that the water is at 4 °C (to keep things simple), the density of water is exactly 1 gram per milliliter, or 1 kilogram per liter. So 1 gallon of water at 4 °C weighs exactly 3.7854118 kilograms, or 3785.41118 grams.

If one mole of water weighs 18 grams, then there are 210.30 moles of water in a gallon. Since one mole of water is made up of 6.02 x 1023 molecules, in one gallon of water there are 1.266 x 1026 molecules.

That is: 126600000000000000000000000 molecules!

If we multiply that by the number of atoms in a single water molecule -- 3 atoms -- then we get:

379800000000000000000000000 atoms!

6 0
2 years ago
Name the following compound: <br> HC2H3O2
just olya [345]

Answer:

El ácido acético , denominado sistemáticamente ácido etanoico, es un compuesto orgánico líquido incoloro con la fórmula química CH3COOH (también escrito como CH3CO2H o C2H4O2

Explanation:

Cuando no se diluye, a veces se le llama ácido acético glacial . El vinagre es aproximadamente del 3 al 9% de ácido acético en volumen, lo que hace que el ácido acético sea el componente principal del vinagre, aparte del agua.

3 0
3 years ago
Read 2 more answers
How do you determine the group and period of an element based on its electron configuration?
il63 [147K]

Answer:

If you are given with the atomic number of an element you can find it's period number and group number. The period number is related to the number of electron occupied shells in the element and the period number is linked to its valence electrons.

Explanation:

hope it helps luv <3

4 0
2 years ago
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