Explanation:
It's a distance-time graph showing the speed of an object
Answer:
323.22 ml
Explanation:
Given that :
Diameter, d = 6.8cm
Height, h = 8.9cm
V = arh
Recall :
Volume, V = πr²h
Radius, r = diameter / 2 = 6.8 / 2 = 3.4cm
V = π * 3.4^2 * 8.9
V = 323.21961 cm³
Recall:
1ml = 1cm³
Hence,
323.21961 cm³ = 323.21961 ml
Volume = 323.22 ml
First you find the RFM (Relative Formula Mass) of Fe2O3
Fe2 = 56 x 2
= 112
O3 = 16 x 3
= 48
112 + 48 = 160
Moles = mass/RFM
= 79.2/160
=0.495
Then you rearrange the formula
Mass= moles x RFM
= 0.495 x 112
= 55.44 g
(To find mass of Iron have to use RFM of total iron in the substance example Fe2 ^^)
Answer:
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Explanation:
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Atoms “stick” to each other because they all try to get into a noble gas configuration. Which simply means that they try to reach a amount of electrons equal to noble gasses, this property makes simple atoms like water stable. I hope this helps! Have a great day and stay safe!
