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const2013 [10]
3 years ago
14

Write a balanced formation equation at standard conditions for the compound HI.

Chemistry
2 answers:
allsm [11]3 years ago
8 0
H₂(g) + I₂(s) = 2HI(g)
Montano1993 [528]3 years ago
6 0
<span>H2 + I2 --> 2HI
hope it helps
</span>
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slava [35]
1,2 I think it’s two tho I’m not sure
8 0
2 years ago
238 U 92 is an isotope notation. what is the atomic number, mass number, number of protons, and number of neutrons?
sergejj [24]

Atomic Number: 92

Mass Number: 238

Number of Protons: 92

Number of Neutrons: 146 (you calculate this by subtracting 238 from 92)

             

5 0
3 years ago
The mass of an iron(II) sulfate crystal is 8.36 g.How many moles of FeSO4 are in the crystal?
Yuki888 [10]

The number of moles present in the FeSO4 are 0.055 mol.

<u>Explanation:</u>

  • The mass of a substance containing the same number  atoms in 12.0 g of 12C is known as mole. One mole of any substance is equal to  6.023 x 10^23. The moles of a substance can be determined by using the formula,

                 Number of moles = mass in grams / molecular mass

Given,

    mass = 8.36 g,

    molecular mass of FeSO4 = 151.908 g / mol

         number of moles = 8.36 / 151.908

                                       = 0.055 mol.

5 0
3 years ago
How many watts of power (W) do you expend when you exert a force of 10 N that moves a
mihalych1998 [28]

Answer:

Power = 7.5 watt

Explanation:

Given data:

Power expend = ?

Force applied = 10 N

Distance cover = 1.5 m

Time = 2 s

Solution:

Power = work/ time

First of all we will calculate work.

Work = Force × distance

Work = 10 N × 1.5 m

Work = 15 N.m

Now we will calculate the power.

Power = 15 N.m / 2s

N.m/s = 1 watt

Power = 7.5 watt

7 0
3 years ago
PLEASE HELP CHEMITRY!
Delicious77 [7]

Answer:

.

Explanation:

5 0
2 years ago
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