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RSB [31]
3 years ago
15

Please help!! it’s only question 34 please..

Chemistry
1 answer:
barxatty [35]3 years ago
3 0

Answer:

Lavoisier disproved the phlogiston theory. He demonstrated that there was an element called oxygen that played a major role in combustion. He also showed that the mass of products in a reaction are equal to the mass of the reactants. The phlogiston theory did not account for the weight changes found in fire. Lavoisier hypothesized that it was probably the fixation and release of air, rather than fire, that caused the observed gains and losses in weight.

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How are Newton's three laws of motion related
OLga [1]
In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
6 0
3 years ago
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If 10 moles of H2O are produced how many moles of CO2 are also produced.
Sedbober [7]
You need the equation to solve, like the relation between water and carbon dioxide!
4 0
4 years ago
The Ksp of yttrium iodate, Y(IO3)3 , is 1.12×10−10 . Calculate the molar solubility, s , of this compound.
torisob [31]

Answer:

1.427x10^-3mol per L

Explanation:

Y(IO_{3} )_{3} ---- Y^{3+} +IO_{3} ^{3-}

I could use ⇌ in the math editor so I used ----

from the question each mole of Y(IO3)3 is dissolved  and this is giving us a mole of Y3+ and a mole of IO3^3-

Ksp = [Y^3+][IO3-]^3

So that,

1.12x10^-10 = [S][3S]^3

such that

1.12x10^-10 = 27S^4

the value of s is 0.001427mol per L

= 1.427x10^-3mol per L

so in conclusion

the molar solubility is therefore 1.427x10^-3mol per L

3 0
3 years ago
What is the answer for chemestry when it says 1.204 times 10^24
Sphinxa [80]

Answer: This is called moles

Explanation:  This is described to be the number of molecules, atoms or ions in a substance :)

6 0
4 years ago
What is true of a molecule? A. All molecules of a compound have the same properties. B. Each molecule of a compound has differen
lions [1.4K]

Answer: A. or C. (most likely C.)

Explanation:

All molecules of a compound have the same properties. ... All molecules of a compound have one type of atom.

Jeez, they r both true.....go with A. or C.

Hope this helps!

3 0
4 years ago
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