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kiruha [24]
2 years ago
7

What isotope has 45 protons and 57 neutrons

Chemistry
1 answer:
anastassius [24]2 years ago
5 0

…Answer:

Explanation:

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Is Coca Cola a homogeneous mixture
alexdok [17]

Answer:

Yes

Explanation:

Coca Cola is a homogenous mixture, just like sugar, salt, and more. Hope this helps!

3 0
4 years ago
Read 2 more answers
A 0.72-mol sample of PCl5 is put into a 1.00-L vessel and heated. At equilibrium, the vessel contains 0.40 mol of PCl3 (g) and 0
astra-53 [7]

Answer:

Equilibrium constant is 0.4

Explanation:

We propose the equilibrium:

                 PCl₅(g)    ⇄    PCl₃(g)   +    Cl₂(g)

Initially    0.72 mol

We have the 0.72 moles of the PCl₅.

React           x                      x                  x

X amount has reacted, so in the equilibrium we have:

               0.72 - x              0.4               0.4

If we initially have 0.72 moles and we have 0.4 moles at the equilibrium, it means that 0.3 moles has been reacted.

Let's make the expression for Kc:

Kc = [PCl₃] . [Cl₂] /  [PCl₅]

Kc =  0.4 . 0.4 / 0.4

Kc = 0.4

4 0
3 years ago
Crossing a Dd parent with another Dd parent results in
MrRissso [65]
C).dd offspring have a nice day
3 0
3 years ago
HOW DOES ENERGY FROM THE<br> SUN ULTIMATELY CAUSE THE<br> BLADES ON THESE WIND<br> TURBINES TO MOVE?
Anarel [89]
Energy in wind comes from the sun. for example, when the Earth’s surface absorbs the suns energy, it turns to heat. wind is produced by uneven heating from the earths surface by the sun. Since the earth's surface is made of various land and water formations, it absorbs the sun's radiation unevenly. The blades on the wind turbine move from the wind. i hope that made sense, if it didn’t i’m sorry, i hoped that hep though!
6 0
3 years ago
If D+2 would react with E-1, what do you predict the formula to be. A) DE B)D2E C)DE2 D) D2E2
allochka39001 [22]
All you need to do the cross the charges and put it as suffixes. 

D+2 + E-1 ----> DE2

answer is C
5 0
3 years ago
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