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sveticcg [70]
3 years ago
12

1) What gives an objedt gravity?

Chemistry
1 answer:
Reptile [31]3 years ago
6 0

1) the mass of an object gives gravity, the more massive an object is the more gravity it has on the things around it

2)the earth's mass is so much greater than our own that we feel it's gravity stronger than say the moon which has a smaller mass than the earth

3) mass and how far away you are from the object

4)as mass increases so does gravity (sorry I do not remeber the equation but there are some specific ones for different situations between two massive objects)

5) when distance increases, gravity decreases (again I do not remeber by how much)

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How many fluorine atoms are present in 5.71 g of C2F4? Please explain in steps!
Leya [2.2K]
Molar mass of C= 12g/mol
2C= 2*12g/mol= 24g/mol
Molar Mass of F=19g/mol
4F= 4*19g/mol= 76g/mol
Total molar mass of C2F4 = (24g/mol+76g/mol)= 100g/mol

Now you need to find the moles of Fluorine
Moles= Mass/molar mass
Moles of Fluorine = 5.71g/100g/mol=0.0571mol of Fluorine

To find the number of atoms you multiply moles by Avogadro's number( 6.022*10 ^{23})

So the number of Fluorine atoms= 0.0571* 6.022x10^23= 3.44x10^22 atoms or 3.44 *10^{22} atoms
7 0
3 years ago
A calcium atom (Ca) will lose or gain electrons
Ad libitum [116K]
To become an ion a calcium atom would have to lose 2 electrons.
6 0
3 years ago
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7 0
4 years ago
Material property of glass
iren2701 [21]
The main characteristics of glass are transparency, heat resistance, pressure, and breakage resistance, and chemical resistance.
5 0
3 years ago
What is the volume of 7.50x10^24 molecules of NH3 at STP
Bas_tet [7]

Answer:

V NH3 = 304.334 L

Explanation:

  • 1 mol ≡ 6.02 E23 molecules

⇒ moles NH3 = (7.50 E24 molecules)×(mol/6.022 E23 molecules)

⇒ mole NH3 = 12.454 mol

assuming ideal gas:

  • PV = RTn

STP:

∴ T = 25°C ≅ 298 K

∴ P = 1 atm

⇒ V NH3 = RTn/P

⇒ V NH3 = ((0.082 atm.L/K.mol)×(298 K)×(12.454 mol))/(1 atm)

⇒ V NH3 = 304.334 L

4 0
4 years ago
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