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Tom [10]
2 years ago
10

What is the concentration of K+ ion in solution, in mmol/L?

Chemistry
1 answer:
Serhud [2]2 years ago
6 0

Answer:

okay hmmm hold up my boy I gotta think for a sec

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Identify this reaction
Natasha2012 [34]

Answer:

d a a

Explanation:

brainliest plz

4 0
2 years ago
What is the density at 20 degrees Celsius of 12.0 mL of a liquid that has a mass of 4.05g?​
zmey [24]

Answer:

<h3>The answer is 0.34 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{4.05}{12}  \\  = 0.3375

We have the final answer as

<h3>0.34 g/mL</h3>

Hope this helps you

5 0
3 years ago
Read 2 more answers
What is the VSEPR notation for the molecule
Ilya [14]
VSEPR notation gives a general formula for classifying chemical species based on the number of electron pairs around a central atom. However, not all species have the same molecules.

For example, carbon dioxide and surfer dioxide are both species, but one is linear and another one is bent.
4 0
3 years ago
A drought has affected an ecosystem. Many plants have died due to lack of water. What do you think will happen ti the other orga
IceJOKER [234]
I think eventually other organisms will die out as well because many herbivores feed on plants for survival, and many other animals feed on these herbivores for survival and so on (this causes a chain reaction because there is a lack of available food)<span />
5 0
3 years ago
Given the reaction: cu(s) + 4hno3(aq) → cu(no3)2(aq) + 2no3(g) + 2h2o(l )as the reaction occurs, what happens to copper?
katrin [286]
From the reaction between Cu and HNO₃, the formed gas is NO₂ instead of NO₃. Hence the correct balanced equation would be,
Cu(s) + 4HNO₃(aq) → Cu(NO₃)₂(aq) + 2NO₂(g) + 2H₂O<span>(l)

Here, Cu goes to </span>Cu(NO₃)₂ by changing its oxidation number from 0 to +2 while NO₃⁻ goes to NO₂ by reducing its oxidation state from +5 to +4 . Hence Cu is oxidized by HNO₃ in the reaction.
6 0
3 years ago
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