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SashulF [63]
3 years ago
5

This is actually science but anyways my teacher didn't explain much can someone help?

Chemistry
1 answer:
zepelin [54]3 years ago
5 0
TT homo
Tt hetero
tt homo
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A 100. mL sample of oxygen is heated from 320 K to 480 K at constant pressure. What is the new volume?
PolarNik [594]

Answer:200ML

Explanation:from quiz ck-12

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3 years ago
Which statements describe the relationship between the area and the biodiversty of the ecosystem check all that apply
wel

Answer:

I don't know what the choices are, but take a picture of the choices

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Calcium Oxide at mass 14.0g react with water. Determine the mass at which the calcium hydroxide formed. [ Ca=40, O=16, H=1]​
ELEN [110]
Calcium oxide CaO = 40+16 = 56
Calcium hydroxide Ca(OH)_2 = 40+16+16+1+1 = 74

The ratio 56:74 is equal to 14:x with x being the unknown mass.
56/14 = 4
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So the answer is 18.5g assuming the water is in excess
8 0
2 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

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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

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3 years ago
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The answer is A) Electrons are exchanged.

All reactions that involve molecular oxygen, such as combustion and corrosion, are electron transfer reactions. This includes the rusting of iron.

4 0
3 years ago
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