Answer:
Dalton's atomic theory consisted of several postulates.
Explanation:
<span><span>
All matter consists of indivisible particles called atoms.
</span><span>
Atoms of the same element are similar in shape and mass, but differ from the atoms of other elements.
</span><span>
Atoms cannot be created or destroyed.
</span><span>
Atoms of different elements may combine with each other in a fixed, simple, whole number ratio to form compound atoms.
</span><span>
Atoms of same element can combine in more than one ratio to form two or more compounds.
</span><span>
Atoms are the smallest unit of matter that can take part in a chemical reaction.
</span></span>
Answer:
The answer to your question is MgSO₄ 5H₂O
Explanation:
Data
mass of MgSO₄ = 2.86 g
mass of H₂O = 2.14 g (5 - 2.86)
Process
1.- Calculate the molecular mass of the compounds
MgSO₄ = 24 + 32 + (16 x 4) = 120
H₂O = 16 + 2 = 18
2.- Convert the grams obtain to moles
120 g of MgSO₄ --------------- 1 mol
2.8 g ---------------- x
x = (2.8 x 1)/120
x = 0.024 moles
18 g of H₂O --------------------- 1 mol
2.14 g -------------------- x
x = (2.14 x 1)/18
x = 0.119
3.- Divide by the lowest number of moles
MgSO₄ = 0.024/0.024 = 1
H₂O = 0.119/ 0.024 = 5
4.- Write the molecular formula
MgSO₄5H₂O
The answer is; C
In folding, when segments of Earth's crust are bent and doubled over, the sediments in between are form folds, since they are forced into a smaller space. This also occurs in converging plates boundaries.
Block Mountains occur when stress due to compression in the crust causes the hanging wall between a fault to move up relative to the footwall.
30 because it is the highest number of marriage
(does this belong in chemistry?)
anyways, the parent was most likely a kid who wanted privacy. they wanted something so they are giving it to their kids.
