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Luda [366]
3 years ago
12

Darwin proposed the “theory of evolution by natural selection” in which he stated that certain members of species have adaptatio

ns to help them _____ while other members who don’t have the helpful adaptation die out.
PLS HELP ME! WHAT DOES IN THE MISSING BOX??!
ILL GIVE U 5 STARS JUST HELPPP
Chemistry
1 answer:
AnnyKZ [126]3 years ago
8 0

Answer:

survive

.............

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Volume would be 3.4 L
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3 years ago
Consider the reaction 2Al + 6HBr → 2AlBr3 + 3H2. If 8 moles of Al react with 8 moles of HBr, what is the limiting reactant?
TiliK225 [7]

Answer:- HBr is limiting reactant.

Solution:- The given balanced equation is:

2Al+6HBr\rightarrow 2AlBr_3+3H_2

From this equation, There is 2:6 mol or 1:3 mol ratio between Al and HBr. Since we have 8 moles of each, HBr is the limiting reactant as we need 3 moles of HBr for each mol of Al.

The calculations could be shown as:

8molAl(\frac{6molHBr}{2molAl})

= 24 mol HBr

From calculations, 24 moles of HBr are required to react completely with 8 moles of Al but only 8 moles of it are available. It clearly indicates, HBr is limiting reactant.

7 0
3 years ago
Which is a possible result of rising ocean temperatures caused by global warming?
goldfiish [28.3K]
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Use your calculator to determine the answer to the following calculation:<br> 1.0×10^−15/4.2×10^−7
lianna [129]
1.0×10^−15/4.2×10^−7=<span>2.3809524e-23 Hoped I helped!</span>
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Ground water has some minerals dissolved in it. If you heat this water, collect the vapor in another container, and then cool it
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The answer would be the last one- it separates dissolved substances.

Have a great rest of your day!
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