Answer:
C.22 grams because mass cannot be created or destroyed
Explanation:
Reaction equation:
2H₂ + O₂ → 2 H₂O
Mass of oxygen = 18g
Mass of hydrogen = 4g
The mass of water produced is 22g according to law of conservation of mass.
The law states that " in a chemical reaction, mass is always conserved"
The sum of the mass of product and reactants must always be the same.
A.vibrates with the frequency of the received sound
Its social behavior I do believe
Answer:
The cone releases the seeds, and they float in the wind until they reach the ground where they can germinate and grow. Some do not produce seeds, instead they use spores to reproduce.
Ex. of Spore producing plants include: mosses and ferns
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