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GarryVolchara [31]
3 years ago
15

Which represents the greatest mass of fluorine?

Chemistry
1 answer:
Shkiper50 [21]3 years ago
4 0

there is no image so there's no way for me to know an answer

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How many sulfur atoms are there in 3.90 mol of sulfur?
Ilya [14]
 <span>In a mole of anything, there are 6.023 x 10^23 units. So, in 3.9 moles of sulfur, there are 3.9 * 6.023 x 10^23 = 23 x 10^23 = 2.3 x 10^24 atoms (keeping only 2 sig figs).  Hope I help!!
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3 years ago
An element has an atomic number of 80. How many protons and electrons are in an atom of the element?
Nadya [2.5K]
80 protons,121 Neutrons, and 80 electrons the element is Mercury
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3 years ago
A 2.5 g sample of french fries is placed in a calorimeter with 500.0 g of water at an initial temperature of 21 °C. After combus
SIZIF [17.4K]
Q=m°C<span>ΔT
=(500g) x (1 cal/g.</span>°C) x (48°C-21°C) = 13500 cal
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<span>"What is the caloric value (kcal/g) of the french fries?"
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8 0
3 years ago
If one thing has a positive charge, and the other has a negative charge, will they attract?
Aleks04 [339]

Answer:

yes

Explanation:

opposites attract!

7 0
3 years ago
Read 2 more answers
When the fuel mixture contained in a 1.49 l tank, stored at 750 mmhg and 298 k, undergoes complete combustion, how much heat is
Ket [755]
Get to know first how many moles in the gas:n = pV/RT= (1.013*10^5*750/760) Pa *1.49*10^-3 m^3/(8.314 J/(molK)*298) n = 0.0601 moles. 
The combustion energies  are  889 kJ/mol (methane) and 2 220 kJ (propane) x = moles methane, y = moles propane 
x*889 + y*2220 = 778 x + y = 0.0601----------- x = 0.267784 moles = 0.267784*100/0.0601 = 44.6 % y = 0.243216 moles = 0.243216*100/0.0601 = 55.4 %
4 0
3 years ago
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