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notka56 [123]
3 years ago
12

Is gravity a contact or noncontact force? Why?

Chemistry
1 answer:
Aneli [31]3 years ago
3 0

Answer:

A non-contact force is a force which acts on an object without coming physically in contact with it. The most familiar example of a non-contact force is gravity, which confers weight. In contrast a contact force is a force applied to a body by another body that is in contact with it.

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How many moles are found in a 350.mL solution of 13.5M HNO3
tiny-mole [99]

Answer: Moles are found in a 350.mL solution of 13.5M HNO_{3} are 4.725 mol.

Explanation:

Given: Volume = 350 mL (1 mL = 0.001 L) = 0.350 L

Molarity = 13.5 M

Molarity is the number of moles of a substance present in a liter of solution.

Therefore, moles of HNO_{3} present in the given solution are calculated as follows.

Molarity = \frac{moles}{Volume (in L)}\\13.5 M = \frac{moles}{0.350 L}\\moles = 4.725 mol

Thus, we can conclude that moles found in a 350.mL solution of 13.5M HNO_{3} are 4.725 mol.

5 0
3 years ago
Does the mass number of an atom change when the atom forms a chemical bond?
cupoosta [38]
No it stays the same the only thing that changes are the number of electrons
6 0
3 years ago
In the axoneme, sidearms
mestny [16]

Answer: A

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6 0
4 years ago
How many outer planets are there?
Ivenika [448]

Answer:

four outer planetsThe Outer Planet the four outer planets and the Sun, with sizes to scale. From left to right, the outer planets are Jupiter, Saturn, Uranus, and Neptune. The gas giants are mostly made of hydrogen and helium. These are the same elements that make up most of the Sun.

Explanation:

I hope this helps you

Ari  

mwah


3 0
3 years ago
PLEASE HELP ASAP I NEED HEP PLEASE ITS DUE TODAY
Andreas93 [3]

(May not be 100% correct as there may be more context, but I hope this helps! Have a nice day!)

     We can tell it won't be Claim 1 as Claim 1 compares a reddish-brown substance to a gray/white substance.

     I am going to go with Claim 3 is most supported by the evidence because of the three descriptions of the different substances, none of them match.

7 0
3 years ago
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