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Salsk061 [2.6K]
3 years ago
10

SCIENCE, PLEASE HELP.

Chemistry
2 answers:
sesenic [268]3 years ago
3 0

Answer: B

Explanation:

protons are positive,

electrons are negative,

and neutrons are neutral.

the amount of electrons to protons is always the same in a balanced atom.

electrons can be removed creating "ions" which is simply an unbalanced atom. removing protons would result in a different type of atom or element.

seraphim [82]3 years ago
3 0

Answer:

Neutron - neutral

Explanation:

This was the correct answer for the test I just took.

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I think the answer is B :)
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A flask has a mass of 78.23g when empty and 593.63g when filled with water.When the same flask is filled with concentrateds ulfu
butalik [34]

Answer:

Density of concentrated H2SO4 = 1.99g/cm^3 = 1991.79Kg/m^3

Explanation:

mass of empty flask = 78.23g mass of flask filled when with water = 593.63g.

mass of flask filled when with concentrateds sulfuric acid, H2SO4 = 1026.57g

Mass of water = (mass of flask filled when with water) -

(mass of empty flask) = 593.63g - 78.23g = 515.4g

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The density of concentrated sulfuric acid is given by

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7 0
3 years ago
What is the conservation of mass
adelina 88 [10]

Answer: This is the definition if that's what you want.

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Hello there!

In this case, for the reaction by which water is decomposed to molecular hydrogen and oxygen:

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It is necessary to perform the inspection balance process since there is a dissimilar number of atoms of oxygen on both sides; therefore, by putting a 2 on water we balance oxygen:

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But now, there are four hydrogens on the left; therefore, we put a 2 on hydrogen to finally balance it:

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