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2 years ago

Why is frying an egg an example of a chemical change

2 answers:

8 0

A Chemical change is any form of chemical reaction changing the state of the matter involved. When you fry an egg, you are making a reaction between the heat and the chemicals that make up the egg. Therefore once you have fried that egg, you have completed a chemical reaction. This is why it's a chemical change when you fry an egg.

Yanka [14]2 years ago

3 0

A chemical change changes the substance itself. That means that you cannot go back to the original substance that you had before. A chemical change breaks or forms new bonds.

When you fry an egg, you cant change it back to its liquid form. Now the egg looks different than it was before you fried it. And also, you cannot change it back to how it looked. <span />

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A(n) 816 ml sample of hydrogen was collected over water at 21.0◦c on a day when the barometric pressure was 755 torr. what volum

hammer [34]

The correct answer is A

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3 years ago

Consider the following first-order reaction: A → B. The concentration of A at the start of the reaction is 4.17 M and after 4.84

valina [46]

Answer : The value of rate constant is, $0.0327s^{-1}$

Explanation :

First we have to calculate the rate constant, we use the formula :

Expression for rate law for first order kinetics is given by:

$k=\frac{2.303}{t}\log\frac{a}{a-x}$

where,

k = rate constant = ?

t = time passed by the sample = 4.84 s

a = initial concentration = 4.17 M

a - x = concentration after time 4.84 s = 3.56 M

Now put all the given values in above equation, we get

$k=\frac{2.303}{4.84}\log\frac{4.17}{3.56}$

$k=0.0327s^{-1}$

Therefore, the value of rate constant is, $0.0327s^{-1}$

4 0

2 years ago

Which of the following reactions below could be properly categorized as a synthesis reaction?

kari74 [83]

Answer:

A synthesis reaction is a type of reaction in which multiple reactants combine to form a single product. Synthesis reactions release energy in the form of heat and light, so they are exothermic. An example of a synthesis reaction is the formation of water from hydrogen and oxygen.

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2 years ago

How do you write the balanced equation

katrin [286]

Answer:

See BELOW!

Explanation:

Your question is confusing, you are not mentioning specifically what you are trying to balance the equation of. If you require more assistance, write in the comments and I'll be glad to assist. you!

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2 years ago

Why is the atomic mass of most elements not a whole number?

Crank

The atomic mass is the average of the isotopes of the element meaning most averages of isotopes will not be whole numbers

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3 years ago