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natita [175]
3 years ago
13

Is this equation balanced and in the lowest form? 4NH3 → 2N2 + 6H2 Yes, because there are equal amounts of atoms of each element

on both sides. No, because the coefficients could be reduced to 2,1, and 3. Yes, because the coefficients are in their lowest whole number ratio. No, because the coefficients could be reduced to 2, 2, and 4.
Chemistry
2 answers:
Charra [1.4K]3 years ago
6 0
It is Balanced but not in its lowest form.
This is because the coefficients could have been reduced to 2,1&3.
tankabanditka [31]3 years ago
3 0

Answer: The given equation is not balanced in its lowest form because the coefficients could be reduced to 2, 1 and 3.

Explanation: We are given a equation but it is not balanced in its lowest form, so to reduce it into its lowest form, we divide the whole equation by 2.

The equation becomes:

2NH_3\rightarrow N_2+3H_2

The coefficients for the equation are 2, 1 and 3.

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Gravity is best described as the attractive force___
Delvig [45]

Gravity is nest described as the attractive force that acts between any two objects on earth

Explanation:-

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8 0
3 years ago
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How many formula units are in 239.2g of <br> Br2<br> MgCl2<br> H2O<br> Fe
Oksana_A [137]

The formula units in the substances are as follows:

  • Br2 = 8.99 × 10^23 formula units
  • MgCl2 = 1.51 × 10^24 formula units
  • H2O = 2.57 × 10^24 formula units
  • Fe = 2.57 × 10^24 formula units

<h3>How many moles are in 239.2 g of the given substances?</h3>

The moles of the substances are determined from their molar mass.

Molar mass of the substances is given as follows:

  • Br2 = 160 g/mol
  • MgCl2 = 95 g/mol
  • H2O = 18 g/mol
  • Fe = 56 g/mol

Formula units = mass/molar mass × 6.02 × 10^23

The formula units in the substances are as follows:

  • Br2 = 239.2/160 × 6.02 × 10^23 = 8.99 × 10^23 formula units
  • MgCl2 = 239.2/95 × 6.02 × 10^23 = 1.51 × 10^24 formula units
  • H2O = 239.2/18 × 6.02 × 10^23 = 2.57 × 10^24 formula units
  • Fe = 239.2/56 × 6.02 × 10^23 = 2.57 × 10^24 formula units

In conclusion, the number of formula units is derived from the moles and Avogadro number.

Learn more about formula units at: brainly.com/question/24529075

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6 0
2 years ago
What is the significant digit in 23.45
klio [65]
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7 0
3 years ago
At what height above the earth surface will the gravitational acceleration be 5m
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Answer: -

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r = 8917 Km

Now Radius of earth = 6371 Km

So height = 8917 - 6371 = 2546 Km

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