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VARVARA [1.3K]
2 years ago
15

2 Points Which of the following is a thermal conductor?

Chemistry
2 answers:
yaroslaw [1]2 years ago
8 0

Answer:

Metals are thermal conductor.

erik [133]2 years ago
6 0
The answer is metals
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Using the brønsted theory, classify the compounds as either an acid or a base
Natali5045456 [20]

Answer:

all the below are ACIDS

Explanation:

1.HCOO- Formate

  HCOO- is a conjugate base.

2.HNO3- Nitric Acid

  Acid

3.CH3COOCH3: Methyl acetate

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4. HCOOH: Formic Acid

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3 years ago
What is a ecosystems​
Maslowich

Answer:

a community or group of living organisms that live in and interact with each other in a specific environment.

Explanation:

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3 years ago
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2. Which two particles are found in an atom's nucleus?
lawyer [7]

Answer:The nucleus contains two types of subatomic particles,  

       protons and neutrons.

Explanation:The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus.

3 0
2 years ago
a substance is analyzed to have a percent composition of 74.186% sodium and 25.814% fluorine. calculate the empirical formula
Novosadov [1.4K]

Answer:

Na₂₆F₁₁

Explanation:

We find the moles of the substance assuming 100 g of the substance is present. Why do we take 100 g? Because then the percent of sodium/fluorine, would be the g of sodium/fluorine respectively:

74.186 g Sodium | 1 mol Sodium/23 g              =>       3.2255 mol Na    

25.814 g Fluorine | 1 mol Fluorine/19 g             =>       1.3586 mol F

Divide each by smallest number of moles:

3.2255/1.3586 = 2.37

1.3586/1.3586 = 1

Multiply by common number to get a smallest whole number:

2.37*11 = 26,

1*11 = 11

The empirical formula is Na₂₆F₁₁

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2 years ago
Select the correct answer. Which is true according to the law of conservation of energy? A. In a closed system, the total amount
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