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-BARSIC- [3]
3 years ago
12

What do the broken lines mean connected to the hydrogen atoms

Chemistry
1 answer:
dmitriy555 [2]3 years ago
6 0
This most likely means that the bonds have been broken.
You might be interested in
What two pieces of evidence did van Helmont use to reach his conclusion
Sav [38]

Explanation:

He weighed silver, dissolved it in acid, and then recovered all the original silver by reacting the solution with copper. He also showed, by using iron to recover the copper, that this displacement of one metal from its salt by using a second metal was not because of transmutation, as many had held.

6 0
2 years ago
Please please please please help
Pavel [41]

Answer:

Atomic #: 82

Mass #: 206

Charge: 4+

# of protons: 82

# of electrons: 78

# of neutrons: 124

Explanation:

Atomic #: look at the bottom left #, it's always the atomic #.

Mass #: look at the top left # it's always the mass #.

Charge: they give you the charge which is shown on the upper right of the element.

# of protons: is the atomic #

# of electrons: also the atomic # minus 4 bc the charge is a positive 4, indicating that some electrons 'left'.

# of neutrons: 206 (mass # is protons + neutrons) minus 82 (atomic#) which is 124.

6 0
3 years ago
A mixture of He, Ne and Ar has a pressure of 7.85 atm. If the Ne has a mole fraction of 0.47 and Ar has a mole fraction of 0.23,
Lena [83]

Answer:

2.355atm

Explanation:

To get the pressure of helium, we need to get the mole fraction of helium.

The total mole fraction for any mixture of gases equals 1. Hence to get the mole fraction of the helium, we simply subtract the addition of the mole fractions of neon and argon from 1.

This means - 1 - 0.47 - 0.23 = 0.3

Now, to get the pressure of the helium gas, we simply multiply the total pressure by 0.3. This is 0.3 * 7.85 = 2.355 atm

5 0
3 years ago
In the simulation, open the Micro mode, then select solutions indicated below from the dropdown above the beaker in the simulati
Levart [38]

Explanation:

It is known that when pH of a substance is more than 7 then the substance is considered basic in nature. When pH of a substance is less than 7 then the substance is considered acidic in nature.

And, when the pH of a substance is equal to 7 then it is considered neutral in nature.

The pH of given substances are as follows.

Coffee = 5.0

Orange Juice = 3.5

Milk = 6.5

Soda pop = 2.5

Battery acid = 1.0

As battery acid as very low pH therefore, it is highly acidic in nature.

Thus, we can conclude that given acids are arranged in increasing order of acidity as follows.

          Milk < Coffee < Orange juice < Soda pop < Battery acid

8 0
3 years ago
A piece of wood displaces 12.5 mL of water and has a density of 0.97 g/ml. what is the mass of the piece of wood? what will happ
mr Goodwill [35]

Density=0.97g/mL

Volume=12.5mL

\\ \sf \longmapsto Density=\dfrac{Mass}{Volume}

\\ \rm\longmapsto Mass=Density(Volume)

\\ \sf \longmapsto Mass=0.97(12.5)

\\ \sf \longmapsto Mass=12.125g

7 0
3 years ago
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