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kolezko [41]
3 years ago
8

Potassium nitrate, KNO3, decomposes to form potassium nitrite, KNO2, and oxygen gas, O2. Write the balanced equation for this de

composition reaction.
Chemistry
2 answers:
Trava [24]3 years ago
8 0

Answer:

2KNO₃ ⇒Δ 2KNO₂ +O₂

horsena [70]3 years ago
3 0
2KNO3 yields 2KNO2 + O2
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A family of four lives in a three-bedroom house and uses an average of 900 kWh of electricity per month. The family cools their
agasfer [191]
<h2>Answer:</h2><h2>The percentage of the family’s total annual electricity that is used to run the two air conditioners for the three summer months = 19.4 %</h2>

Explanation:

Average electricity consumed per month = 900 kWh

The family cools their house for three months during the summer with two window-unit air conditioners

The power consumed by one window-unit air conditioners = 350 kWh

The power consumed by two window-unit air conditioners = 350(2) = 700 kWh

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The percentage of the family’s total annual electricity that is used to run the two air conditioners for the three summer months = \frac{2100}{10800}100 = 19.4 %

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3 years ago
Given the formula representing a molecule:
Aleksandr [31]

Answer:

B) Symmetrical and nonpolar  

Step-by-step explanation:

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Each C atom has <em>two</em> electron regions, so VSEPR theory predicts a <em>linear molecular geometry</em> (see image below).

The molecule is symmetrical, because the green line divides the molecule into two halves that are mirror images of each other.

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The C atoms are partially negative (red), while the H atoms are partially positive (blue).

However, the two C-H bond dipoles point in <em>opposite directions</em>, so they cancel each other. The molecule has <em>no net dipole moment.</em>

Acetylene is nonpolar.

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3 years ago
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The answer is D. groups and families
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Why is it important to conserve or save our energy resources?
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explanation:

  • credits: online research
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2 years ago
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