Answer:
The answer to your question is: 1.205 x 10²³ atoms of Carbon
Explanation:
Data
Carbons atoms contained in 2.8 g C₂ H₄
MW C₂ H₄ = (12 x 2) + (4 x 1) = 24 + 4 = 28 g
28 g of C₂ H₄ ---------------- 24 g of carbon
2.8 g C₂ H₄ ----------------- x
x = (2.8)(24) / (28)
= 2.4 grams of C
1 mol ------------------- 12 g of Carbon
x ------------------- 2.4 g
x = (2.4x 1) / 12 = 0.2 mol
1 mol ----------------- 6.023 x 10 ²³ atoms
0.2 mol -------------- x
x = (0.2 x 6.023 x 10 ²³) / 1
= 1.205 x 10²³ atoms
Answer:
i
b because it says it in the question
Answer:
A) Devices that transfer kinetic energy have a source of power that is in motion
Kinetic energy is the energy in motion, as such, a device that transfers kinetic energy transfers the energy the power source has into other energy forms
B) Kerosene does not easily cold start like diesel which can burn after compression
C) The first law of thermodynamics states that energy is conserved and it can neither be created nor destroyed, but can be changed from one form to another.
Therefore, when energy is not available in a given location or body, it cannot be obtained from that body or location
Explanation:
