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Citrus2011 [14]
3 years ago
10

What is the definition of heat energy?

Chemistry
1 answer:
masya89 [10]3 years ago
7 0

Answer:

Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat

Explanation:

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Air pollution that forms from the interaction between chemicals in the air and sunlight
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Answer:

This process is called Photochemical smog

Explanation:

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3 years ago
A 1.25 × 10-4 m solution of the anti-inflammatory drug naproxen has a ph = 4.2. the ka and pka of naproxen are ________ and ____
Mandarinka [93]

Naproxen is known to be a weak acid. In order to calculate its ka and pka, use the equation of getting the ph of weak acid which is ph= -1/2 log [(Ka)(Mwa)]. The Ka value is 3.18x10^-5. The pKa can be obtained through pKa = - log Ka. The pKa is 4.5. 

6 0
3 years ago
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Which observations is the best evidence that unknown liquid X is a composed of only pure substance
Angelina_Jolie [31]

Answer:

A substance that is composed only of atoms having the same atomic number is ...  36 grams of an unknown liquid at its boiling point,.

4 0
3 years ago
Look at the following enthalpy diagram. Select all that apply.
Drupady [299]

Answer:

Option 2 and 4 are correct

Explanation:

The reactants in the attached image have more enthalpy and hence less stability as they are more reactive. Thus, Product is more stable than the reactants.

This is an addition reaction in which two reactants add up to form the product.

Very less activation energy is required as the reactants themselves are unstable, possess high energy and hence are very reactive.

Reactants have more energy than the products.  

5 0
3 years ago
Fill in the following information for the element
e-lub [12.9K]

Answer:

Period: 6 block

Group: f block

Family: Lanthanides

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