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yuradex [85]
2 years ago
12

What can change depending on the number of protons in an atom?​

Chemistry
2 answers:
Rudiy272 years ago
7 0

Answer:

The element of the atom.

Explanation:

The number of protons confirms what element is the atom.

zvonat [6]2 years ago
6 0

Answer:

The type of atom

Explanation:

If you add a proton to a hydrogen atom, then it is no longer hydrogen, it is lithium

Hope this helps

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A certain substance X has a normal freezing point of -6.4 C and a molal freezing point depression constant Kf= 3.96 degrees C.kg
Brut [27]

Answer:  1.0\times 10^2g

Explanation:

Depression in freezing point is given by:

\Delta T_f=i\times K_f\times m

\Delta T_f=T_f^0-T_f=(-6.4-(13.6))^0C=7.2^0C = Depression in freezing point

i= vant hoff factor = 1 (for non electrolyte like urea)

K_f = freezing point constant = 3.96^0C/m

m= molality

\Delta T_f=i\times K_f\times \frac{\text{mass of solute}}{\text{molar mass of solute}}\times \text{weight of solvent in kg}}

Weight of solvent (X)= 950 g = 0.95 kg  

Molar mass of non electrolyte (urea) = 60.06 g/mol

Mass of non electrolyte (urea) added = ?

7.2=1\times 3.96\times \frac{xg}{60.06 g/mol\times 0.95kg}

x=1.0\times 10^2g

Thus 1.0\times 10^2g urea was dissolved.

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3 years ago
Which term correctly describes all of the following materials ? Salt water,vinegar , bronze,air,beach sand?
maksim [4K]

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Explanation:

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what method can be used to separate parts of liquid mixture wwhen the entire mixture can pass through a filter
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The method that can be used to separate the mixture is DISTILLATION.
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