Answer:
olivine im pretty sure
Explanation:
calcite has a hardness number of 3 and calcite has a hardness number of 6.5-7
The law that states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constant is Avogadro’s law. That is option D.
<h3>What is Avogadro’s law?</h3>
Avogadro’s law states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constant.
Mathematically the Avogadro’s law can be represented by the following:
V1/n1= V2/n1
Where,
V1 = first volume
n1 = first amount of gas
V2 = second volume
n2 = second amount of gas
Learn more about gas laws here:
brainly.com/question/25587265
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Answer:Top Right and Bottom Right.
Explanation:
Proton's define an elements Identity
I believe the answer would be compound.
Hope this helps :-)
First we have to write balanced chemical equation:
CuSO₄.5H₂O + 4 NH₃ → [Cu(NH₃)₄]SO₄.H₂O + 4 H₂O
then calculate the molar mass of both CuSO₄.5H₂O and [Cu(NH₃)₄]SO₄.H₂O
MM CuSO₄.5H₂O = 249.612 g/mole
MM [Cu(NH₃)₄]SO₄.H₂O = 245.612 g/mole
from equation we see that:
1 mole CuSO₄.5H₂O ---gives ---> 1 mole [Cu(NH₃)₄]SO₄.H₂O
249.612 g ---gives ---> 245.612 g
? grams ---gives ---> 6 g complex
By cross multiplication we get that:
mass of CuSO₄.5H₂O required = 6.1 g
