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aivan3 [116]
3 years ago
5

What is a diatomic molecule​

Chemistry
1 answer:
astra-53 [7]3 years ago
5 0

Answer:

It is a molecule that are only composed of two atoms, but from the same or different chemical element according to wikipedia.

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Examine the chemical equation Al + O2 Al2O3
AURORKA [14]
I think it is aluminum oxide

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Acetone is one of the most important solvents in organic chemistry. It is used to dissolve everything from fats and waxes to air
Phantasy [73]

Answer:

The half-life time, the team equired for a quantity to reduce to half of its initial value, is 79.67 seconds.

Explanation:

The half-life time = the time required for a quantity to reduce to half of its initial value. Half of it's value = 50%.

To calculate the half-life time we use the following equation:

[At]=[Ai]*e^(-kt)

with [At] = Concentration at time t

with [Ai] = initial concentration

with k = rate constant

with t = time

We want to know the half-life  time = the time needed to have 50% of it's initial value

50 = 100 *e^(-8.7 *10^-3 s^- * t)

50/100 = e^(-8.7 *10^-3 s^-1 * t)

ln (0.5) = 8.7 *10^-3 s^-1 *t

t= ln (0.5) / -8.7 *10^-3  = 79.67 seconds

The half-life time, the team equired for a quantity to reduce to half of its initial value, is 79.67 seconds.

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3 years ago
This is the phase of matter with no fixed shape or volume.
madreJ [45]
By circle fraction additional number for the number
7 0
3 years ago
Identify and explain the process shown below. Name any two products obtained during this process and state their uses.
lapo4ka [179]

Answer:

This is heating limestone

Explanation:

Process:

limestone is heated strongly. After a while, the limestone begins to go cloudy. Test tube is heated too much that it is beginning to  soften it. After removing limewater, test tube cools down, the pressure in the test tube drops and air pressure pushes the cold the liquid into the hot test tube with terrible result.

Products:

Limestone is also known as calcium carbonate and Limewater

Click on the link provided to show the video

https://youtu.be/RLL5rT_DeKc

or search heating calcium carbonate

you will find a video

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Suppose that when you wake up in the morning, you are very hungry. You go to the refrigerator and remove an egg. On the way to t
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4- when you cook the egg because when you coook the egg it is no longer raw and you cant re do it so there for it is a chemical chabge
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3 years ago
Read 2 more answers
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