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stealth61 [152]
3 years ago
13

Tyrone mixes some chemicals together. He notices that the mixture gives off heat and is hot to touch. What type of reaction is t

his?
A. Physical
B. Chemical
C. Polar Bear
D. Solution
Chemistry
1 answer:
Brrunno [24]3 years ago
6 0
Chemical, if it gives off a reaction like that its chemical
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The double covalent bond within unsaturated hydrocarbons_____. are very strong are easily broken are saturated contain oxygen
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Answer:

are easily broken

Explanation:

The double covalent bond within unsaturated hydrocarbons are easily broken.

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Hydrofluoric acid is what type of acid?
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When did oxygen first appear in earth's atmosphere??
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7 0
3 years ago
Consider 0.01 m aqueous solutions of each of the following. a) NaI; b) CaCl2; c) K3PO4; and d) C6H12O6 (glucose) Arrange the sol
stealth61 [152]

Answer:

The solutions are ordered by this way (from lowest to highest freezing point):  K₃PO₄ < CaCl₂ < NaI < glucose

Option d, b, a and c

Explanation:

Colligative property: Freezing point depression

The formula is: ΔT = Kf . m . i

ΔT = Freezing T° of pure solvent - Freezing T° of solution

We need to determine the i, which is the numbers of ions dissolved. It is also called the Van't Hoff factor.

Option d, which is glucose is non electrolyte so the i = 1

a. NaI →  Na⁺  +  I⁻        i =2

b. CaCl₂ →  Ca²⁺  +  2Cl⁻      i =3

c. K₃PO₄ → 3K⁺ + PO₄⁻³     i=4

Potassium phosphate will have the lowest freezing point, then we have the calcium chloride, the sodium iodide and at the end, glucose.

7 0
3 years ago
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