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Arte-miy333 [17]
3 years ago
8

PLEASE ANSWER

Chemistry
1 answer:
Vikki [24]3 years ago
4 0
D) refracted
because , the light changes direction.. causing the penny to look bigger than it is.
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Noble gas notation for molybdenum?
GuDViN [60]
Noble gas notation for molybdenum:
[Kr] 4d^5 5s^1
4 0
2 years ago
If 200.4g of water is mixed with 101.42g of salt the mass of the final solution would be reported as
d1i1m1o1n [39]

Answer:

301.8 g

Explanation:

We prepare a solution with 200.4 g of water (solvent) and 101.42 g of salt (solute). The mass of the solution is equal to the sum of the mass of the solvent and the mass of the solute.

m(solution) = m(solute) + m(solvent)

m(solution) = 200.4 g + 101.42 g

m(solution) = 301.8 g (we round-off to one decimal according to the significant figures rules)

8 0
3 years ago
40 g of calcium reacts with 71 g of chlorine to produce _____ g of calcium chloride
grin007 [14]
The answer is 111g of calcium chloride
8 0
3 years ago
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A sample of gas has a volume of 4.4 liters when the pressure is 3.3 atm. What is the volume when the pressure is reduced to 2.2
murzikaleks [220]
6.6 liters would be your answer. 
5 0
3 years ago
Read 2 more answers
How many grams are in 2.45E24 formula units of Fp3BZ2? The molar mass of Fp3Bz2. is 97.05<br> g/mol.
dlinn [17]

Answer:

394.99g

Explanation:

The number of moles of a substance can be calculated by dividing the number of atoms of such substance by Avagadro's number (6.02 × 10^23)

n = nA ÷ 6.02 × 10^23

The number of atoms of Fp3BZ2 in this question is 2.45E24 formula units i.e. 2.45 × 10^24

n = 2.45 × 10^24 ÷ 6.02 × 10^23

n = 2.45/6.02 × 10^(24-23)

n = 0.407 × 10¹

n = 4.07moles

Using mole = mass/molar mass

Where; molar mass of Fp3Bz2. is 97.05

g/mol.

mass = molar mass × mole

mass = 97.05 × 4.07

mass = 394.99g

4 0
3 years ago
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