state whether the following changes are physical or chemical for rancidipication fixation of water 2 tearing of paper 3 rusting
of iron 4 electrolysis of water
1 answer:
1. rancidification fixation of water is CHEMICAL CHANGE
2. Tearing of paper is PHYSICAL CHANGE
3. Rusting if iron is CHEMICAL CHANGE
4. Electrolysis of water is CHEMICAL CHANGE
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18 moles of water are produced in the above reaction.
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between two oppositely charged ions
Answer:
D: dark cloud
E: elliptical galaxy
F: flare star
Answer:
2.04 mol
Explanation:
At STP, 1 mole = 22.4 L
45.6 L of H2 * (1 mole of H2 / 22.4 L ) = 2.04 mol
Total in pot=28 L
400 mL in each bowl
16 bowls filled
1000mL=1L
16 bowls(400mL/1 bowl)=6400mL
6400mL(1L/1000mL)=6.4L
28L-6.4L=21.6 L
