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Savatey [412]
4 years ago
10

explain the difference between temperature and heat also state what determines the direction of heat transfer

Chemistry
1 answer:
BartSMP [9]4 years ago
4 0

Heat flow is directed from the area of highest heat to the coolest region. The difference between temperature and heat is that Heat is the total energy of molecular motion in a substance while temperature is the average energy of the m.m. in a substance

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7 0
4 years ago
Read 2 more answers
How many valence electrons would an element with atomic number 113 have?
marshall27 [118]

How does the law of conservation of mass apply  to this reaction: C2H4 + O2 → H2O + CO2?

4 0
3 years ago
Plz answer this fast... will mark ur answer as brainliest
Xelga [282]

Answer:

When fuels are incompletely burnt, they release carbon monoxide gas into the atmosphere. This gas is very dangerous as it is poisonous in nature

Explanation:

7 0
3 years ago
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Write a balanced half-reaction for the reduction of dichromate ion to chromium ion in acidic aqueous solution. Be sure to add ph
Serhud [2]

Answer:

The balanced half-reaction for the reduction of dichromate ion to chromium ion in acidic aqueous solution:

Cr_2O_7^{2-}(aq)+14H^+(aq)+6e^-\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

Explanation:

The reaction :

Cr_2O_7^{2-}\rightarrow Cr^{3+}

Balancing of reaction in an acidic medium:

Step 1: Balance the atoms in the reaction:

Cr_2O_7^{2-}(aq)\rightarrow 2Cr^{3+}(aq)

Step 2: Balance oxygen atom by adding water on the side where no oxygen or less oxygen atom is present;

Cr_2O_7^{2-}(aq)\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

Step 3: Balance the hydrogen atom by adding  hydrogen ions on the side where water is absent:

Cr_2O_7^{2-}(aq)+14H^+(aq)\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

Step 4: Now balance charge by adding electrons on the side where more positive charge is present

Cr_2O_7^{2-}(aq)+14H^+(aq)+6e^-\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

The balanced half-reaction for the reduction of dichromate ion to chromium ion in acidic aqueous solution:

Cr_2O_7^{2-}(aq)+14H^+(aq)+6e^-\rightarrow 2Cr^{3+}(aq)+7H_2O(l)

6 0
3 years ago
I need help on the question about chemistry
lapo4ka [179]

Answer:

14.125

Explanation:

If my calculations are right.

  • there are 44.0 moles in co2
  • +20.0
  • which equals 64
  • there are 78.125 moles in O2 so just subtract it by 64 which gives you
  • 14.125

MOLE CALCULATION

divide the mass of the material by its molar mass. The molar mass of a substance is the mass in grams of one mole of that substance.

8 0
3 years ago
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