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Ket [755]
4 years ago
8

Kinetic molecular theory is often used to describe conductors because as the_____ increases the thermal conductivity of the mate

rial increases.
A. atoms
B. collisions
c. weight
Chemistry
1 answer:
Lilit [14]4 years ago
3 0

The answer is actually B. Collisions

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Answer:

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7 0
3 years ago
Compare and contrast chemical change and physical change
ki77a [65]
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3 0
4 years ago
A nitric acid solution (HNO3) has a molar concentration of 0.00044 M. Calculate the [H3O+],[OH-] and the pH of the solution. Rem
valentinak56 [21]

[H₃O⁺]=4.4 x 10⁻⁴

pH=3.357

[OH⁻] = 2.28 x 10⁻¹¹

<h3>Further explanation</h3>

Given

HNO3 concentration = 0.00044 M

Required

[H3O+],[OH-] and the pH

Solution

HNO₃ = strong acid

HNO₃ ⇒ H₃O⁺ + NO₃⁻

[H₃O⁺]=[HNO₃]=4.4 x 10⁻⁴

For strong acid pH=-log[H₃O⁺]

pH=-log 4.4 x 10⁻⁴ = 4-log 4.4 =3.357

pOH+pH=pKw

pOH+3.357=14

pOH=14-3.357=10.643

pOH=-log[OH⁻]

\tt [OH^-]=10^{-10.643}=2.28\times 10^{-11}

8 0
3 years ago
Please help with 2,3,4 will give brainlist asap
MrRa [10]

Answer:

#2

C2H4 + 3O2 ----> 2CO2 + 2H2O

#3

2FeBr3 + 3H2SO4 ----> Fe2(SO4)3 + 6HBr

#4

2Al + 3F2 -----> 2AlF3

Explanation:

6 0
3 years ago
12.) Which type of force is stronger?<br> A)intermolecular forces<br> B)intramolecular forces
Sedaia [141]

Answer:

Intramolecular forces

Explanation:

Intramolecular forces  are stronger than intermolecular forces, because the attractions that hold compounds together are stronger than the attractions between molecules.

7 0
4 years ago
Read 2 more answers
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