1) In chemistry and physics, an element is a substance that cannot be broken down into simpler components by any non-nuclear chemical reaction. An element is uniquely determined by the number of protons in the nuclei of its atoms.- from google
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Atoms form chemical bonds to make their outer electron shells more stable
Answer:
The answer is the angle made by a refracted ray with a perpendicular to the refracting surface.
Explanation:
- <u><em>A prism uses refraction to form a spectrum of colors from an incident beam of light.</em></u>
Answer:
Ecology is the study of how organisms interact with one another and with their physical environment.
Explanation:
Answer:
1.17 grams
Explanation:
Let's consider the balanced equation for the combustion of ethylene.
C₂H₄(g) + 3 O₂(g) → 2 CO₂(g) + 2 H₂O(l)
We can establish the following relations:
- 1411 kJ are released (-1411 kJ) when 1 mole of C₂H₄ burns.
- The molar mass of C₂H₄ is 28.05 g/mol.
The grams of C₂H₄ burned to give 59.0 kJ of heat (q = -59.0 kJ) is:
