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Alona [7]
3 years ago
12

Which one is the best explanation of energy

Chemistry
2 answers:
Rudik [331]3 years ago
8 0
Hello! :)

Energy, definition; Power derived from the utilization of physical or chemical resources, especially to provide light and heat to work machines.

Hope this helps >.<
Dmitriy789 [7]3 years ago
3 0

Answer:

Explanation:

Energy is defined as the capacity or ability to do work such as moving an object against a force, like frictional force. There are two main type of energy that are:

  1. Potential energy , it is denoted with symbol U. It is a stored energy or energy which is due to it's position. For example, energy stored in a ball when it is taken to the building top.
  2. Kinetic energy, it is denoted as K.E. . It is the energy that an object posses due to it's motion. For example, collision of pool balls.  
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Which of the following is a mixture?
KATRIN_1 [288]
C is a mixture!!!!!!!!!!!!!

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In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodiu
storchak [24]
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6 0
3 years ago
The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. In t
Sloan [31]

Answer:

Mass =  42.8g

Explanation:

4 NH 3 ( g ) + 5 O 2 ( g ) ⟶ 4 NO ( g ) + 6 H 2 O ( g )

Observe that every 4 mole of ammonia requires 5 moles of oxygen to obtain 4 moles of Nitrogen oxide and 6 moles of water.

Step 1: Determine the balanced chemical equation for the chemical reaction.

The balanced chemical equation is already given.

Step 2: Convert all given information into moles (through the use of molar mass as a conversion factor).

Ammonia = 63.4g × 1mol / 17.031 g = 3.7226mol

Oxygen = 63.4g × 1mol / 32g = 1.9813mol

Step 3: Calculate the mole ratio from the given information. Compare the calculated ratio to the actual ratio.

If all of the 1.9831 moles of oxygen were to be used up, there would need to be 1.9831 × 4 / 5 or 1.5865 moles of Ammonia. We have 3.72226 moles of ammonia - Far excess. Because there is an excess of Ammonia, the Oxygen amount is used to calculate the amount of the products in the reaction.

Step 4: Use the amount of limiting reactant to calculate the amount of H2O produced.

5 moles of O2  = 6 moles of H2O

1.9831 moles = x

x = (1.9831 * 6 ) / 5

x = 2.37972 moles

Mass of H2O = Molar mass * Molar mass

Mass = 2.7972 * 18

Mass =  42.8g

6 0
3 years ago
A. What does the identity of an element depend on the number of? B. electrons in the atom C. neutrons in the atom D. protons and
antiseptic1488 [7]

Answer:

B

Explanation:

i hope this help but if it didn't tell me.

6 0
3 years ago
Read 2 more answers
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