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rosijanka [135]
3 years ago
13

Which of the following is not a trend that varies systematically in the periodic table

Chemistry
2 answers:
UNO [17]3 years ago
5 0

Answer:

B: Symbols of Elements

Explanation:

juin [17]3 years ago
3 0

Answer: B: Symbols of Elements

Explanation:

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If I have one mole of sulfur, how many atoms would that be?
krok68 [10]

Answer:

Atoms of sulfur = 9.60⋅g32.06⋅g⋅mol−1×6.022×1023⋅mol−1

Explanation:

because the units all cancel out, the answer is clearly a number, ≅2×1023 as required.

7 0
3 years ago
What is the temperature of 4.5 moles of a gas that occupies 50. mL at 1.35 atm?
devlian [24]

Answer:

T = 0.182 Kelvin

Explanation:

As we know that

PV = nRT\\

Where P is the pressure in atmospheric pressure

T is the temperature in Kelvin  

R is the gas constant  

V is the volume in liters

R = 0.08206

Substituting the given values in above equation, we get -

1.35 * \frac{50}{1000}= 4.5 * 0.08206* T\\

On rearranging, we get

T = \frac{1.35*50}{1000*0.08206*4.5} \\

T = 0.182 Kelvin

7 0
3 years ago
What is an ionic compound
Gwar [14]
Ionic compound is formed by negative and positive ions, these ions form ionic bond
6 0
4 years ago
On which of the following factors does the amount of energy absorbed by an endothermic reaction depend?
jolli1 [7]

Answer: D!! ( difference in the potential energy of the reactants and products )

Explanation:

i have the same test

4 0
3 years ago
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lesya692 [45]

I believe the answer is D

8 0
3 years ago
Read 2 more answers
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