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Art [367]
2 years ago
6

Wich stament describes to organ systems working together to get rid of waste played by cells

Chemistry
2 answers:
Mnenie [13.5K]2 years ago
6 0
The digestive and excretory systems work together to get the nutrients needed from food and then release waste products.
IceJOKER [234]2 years ago
5 0

Answer:

C. Kidneys filter wastes from the bloodstream and produce urine

Explanation:

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Heat flows naturally from objects that have higher energy to those with?
Vlad [161]

Answer:

heat flow

Explanation:

heat flow moves to a higher temperature to a lower temperature

8 0
2 years ago
In which of the following compounds does the carbonyl stretch in the IR spectrum occur at the lowest wavenumber?
klio [65]

Answer:

a. Cyclohexanone

Explanation:

The principle of IR technique is based on the <u>vibration of the bonds</u> by using the energy that is in this region of the electromagnetic spectrum. For each bond, there is <em>a specific energy that generates a specific vibration</em>. In this case, you want to study the vibration that is given in the carbonyl group C=O. Which is located around 1700 cm-1.

Now, we must remember that the <u>lower the wavenumber we will have less energy</u>. So, what we should look for in these molecules, is a carbonyl group in which less energy is needed to vibrate since we look for the molecule with a smaller wavenumber.

If we look at the structure of all the molecules we will find that in the last three we have <u>heteroatoms</u> (atoms different to carbon I hydrogen) on the right side of the carbonyl group. These atoms allow the production of <u>resonance structures</u> which makes the molecule more stable. If the molecule is more stable we will need more energy to make it vibrate and therefore greater wavenumbers.

The molecule that fulfills this condition is the <u>cyclohexanone.</u>

See figure 1

I hope it helps!

4 0
3 years ago
Help! Is there a way to email outlook support for help? If so please comment their email address, as I can't call them on their
CaHeK987 [17]

Answer:

Explanation:

Even if you have a Hotmail email address, you now use the Outlook.com interface to ... I searched and found a Hotmail support number, but is it legit? ... one from Leo's e-mail, I receive a message from windows stating it can't find the site.

7 0
3 years ago
Read 2 more answers
HELP ASAP PLZ
Luba_88 [7]

D. The total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced. The conservation of the mass is a fundamental law of chemistry and physics. It indicates not only that during any experiment, including if it involves a chemical transformation, the mass is conserved, but also that the number of elements of each chemical species is conserved. Like any law of conservation it is expressed by a conservation equation.

4 0
3 years ago
Read 2 more answers
How many moles 1 gram H2SO4
Alexandra [31]

Answer:

0.0102 mole

Explanation:

Use and solve proportions for these with x as the unknown value.

4 0
3 years ago
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