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kakasveta [241]

2 years ago

14

In a particular redox reaction, Cr is oxidized to CrO42– and Cu2 is reduced to Cu . Complete and balance the equation for this r

eaction in acidic solution. Phases are optional.

1 answer:

Alisiya [41]2 years ago

8 0

<span> Cr + Cu2+ = CrO42- + Cu+

</span>

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Because the phosphate group and its attachments are either charged or polar, the phospholipid head is blank, which means it has

schepotkina [342]

The phospholipid head is hydrophilic which means it has an affinity for water. And it is true.

<h3>What is phospholipid , its component and how come it is hydrophilic?</h3>

Phospholipid contains of a head and a tail , the head part of phospholipid consist of phosphate group and for further clarification the tail part of phospholipid consist of fatty acids.
As we know already phosphate group that is OH- is negatively charged which clearly which its head is going to be polar .
Since its polar , its hydrophilic. There is a specific function performed by phosphate group that cannot be filled by other compound present simultaneously.
Phosphate group grabs a role to provide space to other compounds too.

To know more about phospholipid visit:

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10 months ago

What happens to the potential energy of water in a stream as gravity pulls it downhill

love history [14]

I believe it becomes kinetic energy, however I’m not entirely sure. I hope it helped though.

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2 years ago

What is a chemical substance that cannot be broken down into another chemical substance?

Dimas [21]

Molecule is a chemical substance that cannot be broken down into another chemical substance.

4 0

3 years ago

Help me out please!!

malfutka [58]

Answer: $6.48*10^{-2}$

Explanation:

alright, dawg, lets get this bread. CHEMISTRY? OH YEAH I LOVE CHEMISTRY.

what is a mol? do you know who avogadro is? sounds like avocado. free shavocado. ok so you MUST REMEMBER THIS NUMBER PLEASE.

please remember this number and commit it to your memory: avogadros number

$6.02 * 10^{23}$

this is how much a mole is. you know how a pair is 2 and a dozen is 12? ok so a mole is $6.02 * 10^{23}$ it is confusing at first but hopefully this helps you to understand.

now that we understand this..... lets perform this calculation with a calculator

$(3.90 * 10^{22}) / (6.02 * 10^{23})$

notice i divide the question by the avogadros number to find out how many moles are in the number. ok but listen... it gets into a tough area here... because HOW ARE WE TO DIVIDE SUCH A HUMONGOUS NUMBER BY ANOTHER HUMONGOUS NUMBER?!?!?

its easy, its cake, just listen this is how you do it. only focus on the numbers NOT the 10 exponential ones. so just 3.90 and 6.02 ok? lets divide these two numbers 3.90 / 6.02 and we get 0.6478... how interesting... ok now lets deal with the exponents of 10. notice that we are DIVIDING these numbers so think of it as subtracting the exponents of ten..... 22 minus 23 equals -1

so we have $0.6478 * 10^{-1}$

now this negative 1 thing is annoying so lets just make it to the power of 0

$0.06478 * 10^{0}$

and anything to the power of 0 just becomes 1.

0.06478

so this is our answer but keep in mind we need 3 sig figs. if we round then we get 0.0648

put this into scientific notation we get $6.48*10^{-2}$

5 0

2 years ago

Which of these characteristics best describes a basic solution?

mario62 [17]

I believe the correct answer would be that it feels slippery. Being slippery or soapy is one characteristic of a base. This due to the fact that it dissolves the oils and fatty acids from the skin. Other characteristics would be that it turns litmus paper blue and has a bitter taste.

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2 years ago