Answer: balloon contains 2600 × 0.1755 = 456.3 kilogram of helium.
Explanation:
Answer is: 20 ions, left side.
Unbalanced half reaction: C₅O₅²⁻(g) → CO₃²⁻(aq).
1) There are 5 carbon atoms on the left side of half reaction and 1 carbon atom on right, so first add coefficient 5 in fron of carbon dioxide to balance carbon atoms: C₅O₅²⁻(g) → 5CO₃²⁻(aq).
2) Because there are more oxygen atoms on the right, add OH⁻ ions on the left side of half reaction and water on the right: OH⁻(aq) + C₅O₅²⁻(g) → 5CO₃²⁻(aq) + H₂O(l).
3) Balance oxygen (25 atoms on boths side) and hydrogen (20 atoms on both side of half reaction) atoms:
Balanced half reaction: 20OH⁻(aq) + C₅O₅²⁻(g) → 5CO₃²⁻(aq) + 10H₂O(l).
Explanation:
Sand is a common material found on beaches, deserts, stream banks, and other landscapes worldwide. In the mind of most people, sand is a white or tan, fine-grained, granular material. However, sand is much more diverse - even beyond the pink sand beaches of Bermuda or the black sand beaches of Hawaii.
2205J
Explanation:
Given parameters:
Mass of object = 75kg
height = 8m
Unknown:
Potential energy gained = ?
Solution:
Potential energy is the energy due to rest of a body. It derived using the expression below:
P.E = mgh
where m is the mass
g is the acceleration due to gravity()9.8m/s²)
h is the height
P.E = 75 x 9.8 x 3 = 2205J
Learn more:
Potential energy brainly.com/question/10770261
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