2 years ago

Pls help i need this ASAP

1 answer:

marin [14]2 years ago

4 0

Answer:

a. 54 calories burnt

b. multiplied by 9

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Aliun [14]

Answer:

Explanation:

A chemical bond is a lasting attraction between atoms, ions molecules that enables the formation of chemical compound.

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3 years ago

insens350 [35]

Chemical change cannot be seen where as physical change can be seen.
Chemical change eg sugar in a coffee & Physical change eg wood into a furniture

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3 years ago

neonofarm [45]

C. They’re safe to use without the regulation of a physician, according to a regulatory agency

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2 years ago

KIM [24]

Answer: Noble-gas notation of Sn contains Kr.

Explanation: Tin ( Sn) is an element having atomic number 50.

Nearest noble gas to this element is Krypton which has an atomic number 36.

Electronic configuration or noble-gas notation for Sn is written as :

$Sn=[Kr]4d^{10}5s^25p^2$

As seen from above, Noble gas Krypton having symbol 'Kr' is coming in the electronic configuration for Tin.

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4 years ago

Elena-2011 [213]

Water is always the solvent

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4 years ago

Pls help i need this ASAP​