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sineoko [7]
3 years ago
7

When matter heats up, dose the molecules close together?

Chemistry
2 answers:
zheka24 [161]3 years ago
8 0
Yes because when they heat up you sweat, and when they cool down they would probably separated because you are at your normal temperate
Dennis_Churaev [7]3 years ago
6 0
Ok don't look at the bottom answer, that's incorrect. When matter heats up, molecules start to separate. That's why gas has no physical form, unlike solids. Ice, for example, is solid, but when it heats up, the molecules strat to move apart and become a liquid and then a gas. Hope I helped!
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7 0
3 years ago
Read 2 more answers
How many equivalents are present in 10 g of Ca2+? <br> 1 <br> 0.5 <br> 1.5 <br> 2
Lynna [10]

0.5

Explanation:

Given parameters:

Mass of Ca²⁺ = 10g

unknown:

Equivalent weight = ?

Solution:

Equivalent weight that is the amount of electrons which a substance gains or loses per mole.

Ca²⁺ has +3 charge

It lost 2e⁻;

therefore;

  In 1 mole of  Ca²⁺, we have 2 equivalent weight

1 mol  Ca²⁺ = 2eq. wts. 

1 mol Ca x (40 g / 1 mol ) x (1 mol / 2 eq.wts.) = 20.0 g = 1 eq.wt. 

Therefore;

10.0 g  Ca²⁺ x (1 eq.wt. / 20.0 g) = 0.5 eq.wts.

learn more:

Molar mass brainly.com/question/2861244

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8 0
3 years ago
Calculated from measurements of distance and time defined
prisoha [69]

Answer:

Any of the six chemical elements that markup group1

of the periodic table.

Explanation:

8 0
3 years ago
Which of the following examples is a molecule with a covalent bond?
serious [3.7K]

Answer:

B. CO

Explanation:

4 0
2 years ago
Let’s say that you have a solvatochromic compound that appears red in a solvent. You dissolve the compound in another solvent an
EastWind [94]

Answer:

Hypsochromic compound, More polar solvent

Explanation:

Hypsochromic shift refers to the shift of solution colour to blue side of the visible spectrum (blueshift) with increasing polarity of the solvent. In our case, the solution changes to orange colour from red when solvent is changed. This means that the emission spectrum of the solution underwent blueshift. (As orange colour is on the 'blue' side for red colour.) So this is a hypsochromic shift, and the new solvent is more polar that the previous one, as it caused hypsochromic shift.

7 0
3 years ago
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