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OleMash [197]
3 years ago
15

Suppose you need to build a raft to cross a fast moving river. Describe the physical and chemical properties of the raft that wo

uld be important.
Chemistry
1 answer:
hichkok12 [17]3 years ago
7 0
For starters, your raft would have to be waterproof. It would have to be sturdy enough not to flip and big enough to hold you and anything else you might have with you. A chemical property might be that the tar you cover your raft with will prevent the water from getting in your raft. Hope I helped!
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Assuming the metals lose all their valence electrons and the nonmetals gain electrons to complete the s-p subshells, which listi
Nataly [62]

Answer: Option (c) is the correct answer.

Explanation:

Atomic number of sodium is 11 and its electronic configuration is 1s^{2}2s^{2}2p^{6}3s^{1}. When sodium loses one electron then it will attain +1 charge and its electronic configuration will be as follows.

Na^{+} : 1s^{2}2s^{2}2p^{6}

Atomic number of fluorine is 9 and its electronic configuration is 1s^{2}2s^{2}2p^{5}. When fluorine gains an electron then it acquires -1 charge and its electronic configuration is as follows.

F^{-} : 1s^{2}2s^{2}2p^{6}

Atomic number of aluminium is 13 and its electronic configuration is 1s^{2}2s^{2}2p^{6}3s^{2}3p^{1}. When aluminium loses its valence electrons then it acquires +3 charge and its electronic configuration is as follows.

Al^{3+} : 1s^{2}2s^{2}2p^{6}

Thus, we can conclude that the listing for aluminum is correct.

8 0
3 years ago
Many trials are not needed before a hypothesis can be accepted
aalyn [17]
Your hypothesis is at the biggenning or the end of you summary
6 0
4 years ago
How does vibrational energy contribute to a reaction?
Viefleur [7K]

Answer:

A lot of thing tbh

Explanation:

6 0
3 years ago
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Aleksandr-060686 [28]

Answer:

Hello There!!

Explanation:

I believe the answer is how fast the molecules are vibrating.

hope this helps,have a great day!!

~Pinky~

8 0
3 years ago
Recording station x has determined that the epicenter of a recent earthquake was 250 km away. no information is available yet fr
KatRina [158]
The epicenter was located somewhere on a circle centered at Recording station X, with a radius of 250 km.<span>
</span>
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3 years ago
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