Ask question

Ask question

All categories

3 years ago

14

Which of these is true for natural selection but not artificial selection?

1 answer:

ElenaW [278]3 years ago

8 0

Can you show a picture so I can help??? :)

You might be interested in

What is the chemical formula of sulfur dioxide? A. SO B. SO2 C. SO3 D. S2O

irga5000 [103]

B. SO2 (Sulfur Dioxide)

7 0

4 years ago

Read 2 more answers

Please help i will mark you

Bad White [126]

Answer:

an oven cooking food

Explanation:

when it's off it has mechanical energy, when on it has electrical energy transformed to heat energy.

7 0

3 years ago

Read 2 more answers

What do all prokaryotes and eukaryotes have in common? A. They are unicellular organisms. B. They are multicellular organisms. C

Sauron [17]

They are multicellular

5 0

3 years ago

In general, ionic compounds have

Solnce55 [7]

HELLO have a nice day

7 0

3 years ago

A solid piece of aluminum (51.0 g) was added to a solution of sodium hydroxide (84.1 g) in water, A balanced equation for this r

EastWind [94]

$M_{Al}=26,98\frac{g}{mol}\\
m=51g\\\\
n=\frac{m}{M_{Al}}=\frac{51g}{26,97\frac{g}{mol}}\approx1,89mol\\\\\\
M_{NaOH}=39,4\frac{g}{mol}\\
m=84,1g\\\\
n=\frac{m}{M_{NaOH}}=\frac{84,1g}{39,4\frac{g}{mol}}\approx2,14mol$

<span>2 NaOH(aq)+ 2 Al(s)+ 2 H</span>₂<span>O → 2 NaAlO</span>₂<span>(aq)+ 3 H</span>₂<span>(g)
</span> 2mol : 2mol : 3mol
2,14mol : 1,89mol : 2,835mol
remains completely consumed
2,14-1,89=0,25mol

A) Al

B)

$M_{NaOH}=39,4\frac{g}{mol}\\
n=0,25mol \Rightarrow \ \ \ m=n*M_{NaOH}=0,25mol*39,4\frac{g}{mol}=9,85g$

C)
$n=2,835mol\\
M_{H_{2}}=2,02\frac{g}{mol} \Rightarrow \ \ \ m=n*M_{H_{2}}=2,835mol*2,02\frac{g}{mol} \approx 5,73g$

7 0

3 years ago