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Inessa05 [86]
2 years ago
12

The state of matter represented on the right (letter D) has the

Chemistry
1 answer:
jek_recluse [69]2 years ago
5 0

Answer:

A is the answer.

Explanation:

gorgeousness

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IF 500 mL of air contains 2.50x10^22 particles (atoms and molecules). how much particles do you inhale in one day if you breath
vaieri [72.5K]

Answer:

I think it is 0.00192

Explanation:

28.795705

15000

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True or false. The center of gravity and center of mass of an object need to be in the same spot?
stellarik [79]

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3 years ago
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When different elements react, their atoms join with other atoms.
FinnZ [79.3K]

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compound is formed .............

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2 years ago
When 16.0 g of an unknown compound (a nonelectrolyte) are dis solved in exactly 800. g of water, the solution has a freezing poi
dexar [7]

Answer:

A. 266g/mol

Explanation:

A colligative property of matter is freezing point depression. The formula is:

ΔT = i×Kf×m <em>(1)</em>

Where:

ΔT is change in temperature (0°C - -0,14°C = 0,14°C)i is Van't Hoff factor (1 for a nonelectrolyte dissolved in water), kf is freezing point molar constant of solvent (1,86°Cm⁻¹) and m is molality of the solution (moles of solute per kg of solution). The mass of the solution is 816,0g

Replacing in (1):

0,14°C = 1×1,86°Cm⁻¹× mol Solute / 0,816kg

<em>0,0614 = mol of solute</em>.

As molar mass is defined as grams per mole of substance and the compound weights 16,0g:

16,0g / 0,0614 mol = 261 g/mol ≈ <em>A. 266g/mol</em>

I hope it helps!

3 0
2 years ago
Does heat only flow upward? Yes or No?
Vlad1618 [11]

Answer:

no

Explanation

heat just flows from hot to cold

7 0
3 years ago
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