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sleet_krkn [62]
2 years ago
13

What type of chemical reaction is C3H8 + O2 ---> CO2 + H2O ?

Chemistry
1 answer:
yuradex [85]2 years ago
7 0
E - Combustion
You can tell because the products are CO2 and H2O :)
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Which term is defined as the region in an atom where an electron is most likely to be located
GREYUIT [131]
The region where an electron is most likely to be located is known as the electron cloud.
8 0
3 years ago
Read 2 more answers
15. If you dilute a 6 M solution of HCl from 5 mL to 50mL, what is the concentration of this new solution? (M1V1 = M2V2)
Andreyy89

Answer:

B) 0.6M

Explanation:

               I apologize in advance if it is not correct :l

The (M1V1= M2V2) is given for you to plug in the correct numbers so let's jot this down.

                    (M1*V1= M2*V2)

so they give us 6M which would be our (M1), from this we can also conclude that 5mL is also V1; ( if you notice the M1's and V1's are always found next to eachother). This leads us to our 50mL, this would be our V2 because the volume went from 5mL to 50mL. Now lets put this in order based on what we know.

M1= 6M                                (M1*V1= M2*V2)

V1= 5mL

M2= ?

V2= 50mL

now we plug in what we know into the equation to find the unknown (M2)

                   (6M*5mL= M2*50mL)

now we could do the long math, but I don't think your on brainly to do the hard way. so lets keep it simple!

                   We are going to put the 50mL under the (6M*5mL) for division.

                             \frac{(6M*5mL)}{(50mL)} This is honestly MUCH easier, than manually answering. you just put that in the calculator and it'll give you B) 0.6M

                 

   honestly though I might not know what I'm doing cuz im currently doing my test and decided to answer this question ;)

        Good Luck!

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3 years ago
Which particle often described as having very little or no mass since the mass number does not change when you add more and more
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Answer:

I wrote this answer to get points lol

Explanation:

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I need help! how many moles are in 3.4*10^-7 grams of silicon dioxide, SiO2. I got 2.0^17 but I think it's wrong :(
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Molar mass SiO2 = 28 + 32 = 60 

<span>so moles sand = 3.4 x 10-7 / 60</span>
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Atoms of elements that are in group 15 with what charge
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Answer:

The elements in group 13 and group 15 form a cation with a -3 charge each.

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