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klasskru [66]
3 years ago
6

During the phase change from solid ice to liquid water, which bonds/forces are being weakened?

Chemistry
2 answers:
vampirchik [111]3 years ago
5 0
I think Intramolecular forces are being weakened
Monica [59]3 years ago
5 0
Intermolecular forces/ hydrogen bonds are weakened during the phase change from ice to water
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What is the period tables purpose?
alexgriva [62]
The purpose is that it shows you all the elements we know and it arranges them in groups that are also the same kind like Chemistry.
4 0
3 years ago
What happens to the particles in matter when hear energy is added to them
Ipatiy [6.2K]
There are two possible situations.
1) If a phase change is not occurring, then the heat added contributes to increased translational energy of the particles. What that means is the particles move/vibrate faster.
2) If a phase change is occurring, then the heat added contributes to the breaking of bonds or intermolecular forces (depending on the chemical nature of the matter you're dealing with).
4 0
3 years ago
Note the mass of copper(1) oxide formula unit 143.091 what is the mass of 8.250 moles of Cu2O
baherus [9]

Answer:

The mass of 8.250 moles of Cu2O is 1180.5g

Explanation:

HOW TO CALCULATE MASS OF A SUBSTANCE:

  • The mass of a substance can be calculated by multiplying the number of moles in the substance by its molar mass as follows:

Mass (g) = no. of moles (mol) × molar mass (g/mol)

  • Molar mass of copper (I) oxide (Cu2O) = 63.5(2) + 16 = 143.09 g/mol

Mass of Cu2O = 8.250 mol × 143.09 g/mol

Mass of Cu2O = 1180.5 g

Therefore, the mass of 8.250 moles of Cu2O is 1180.5 g.

6 0
3 years ago
Which group of coefficients balances the following chemical equation? 2KCIO3 → _KCI + _O2 a 1, 3 b 2,2 C 2,3 d 2.1 e 1, 1​
Mars2501 [29]

Answer:

2KClO3 = 2KCl + 3O2

I hope it's helps you

7 0
3 years ago
What coefficients must be added to balance the following equation?_____NaOH + _____H2 SO4 _____ Na2SO4 + _____ H2O 2, 1, 1, 13,
alexgriva [62]

_____NaOH + _____H2 SO4 _____ Na2SO4 + _____ H2O ,

To balance this equation,

Step 1:

Balance the number of sodium on both side:

by multiplying the NaOH by 2 that is:

2NaOH+H2SO4-------->Na2SO4+H2O

Step2:

As NOW the number of oxygen atom and hydrogen atom are not equal on both sides. So we multiply this H2O by 2 that is:

2NaOH+H2SO4-------->Na2SO4+2H2O

Now the no of all atoms on product side is equal to no of all atoms in the reactant side.

so the coefficient is 2 NaOH+1 H2SO4-------->1 Na2SO4+2 H2O.

7 0
3 years ago
Read 2 more answers
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