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FromTheMoon [43]
3 years ago
14

All are true EXCEPT -- A. skin is an organ B. organs are made up of tissues C. each organ is made up of its own kind of tissue D

. tissues are made up of cells
Chemistry
1 answer:
AveGali [126]3 years ago
6 0

The Answer is C. glad I could help

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mixas84 [53]

Answer:

Both are pure substances and a compound

8 0
3 years ago
Why do objects cool down​
zhannawk [14.2K]

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wla dyan ang sagut ehh baka mali yan

7 0
3 years ago
What mass of ice can be melted with the same quantity of heat as required to raise the temperature of 3.00 mol H2O(l) by 50.0°C?
lions [1.4K]

Answer:

m=33.9g

Explanation:

Hello,

In this case, we can first compute the heat required for such temperature increase, considering the molar heat capacity of water (75.38 J/mol°C):

Q=nCp \Delta T=3.00mol*75.38\frac{J}{mol\°C} *50.0\°C\\\\Q=11307J

Afterwards, the mass of ice that can be melted is computed by:

Q=n \Delta _{fus}H

So we solve for moles with the proper units handling:

n=\frac{Q}{\Delta _{fus}H} =\frac{11307J}{6010\frac{J}{mol} } =1.88mol

Finally, with the molar mass of water we compute the mass:

m=1.88mol*\frac{18g}{1mol}\\ \\m=33.9g

Best regards.

7 0
3 years ago
Which pair has the stronger ionic bond:<br><br> - MgCl2 vs. NaCl2<br> - NaCl vs. LiCl
Rudiy27
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- NaCl vs. LiCl
5 0
3 years ago
. percent iron in a mixture that is 52.2% Fe2O3​
AVprozaik [17]

Answer:

36.51%.

Explanation:

First find the percentage of iron in pure Fe2O3 using the  atomic masses of the elements:

=  (2 * 55.845) * 100 /  (2*55.845+ 3*15.999)

=  69.94 %.

So the percentage of iron in the mixture

=  52.2 * 0.6994

= 36.51 (answer).

8 0
3 years ago
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