Answer:
Electromagnetic Waves
Explanation:
Electromagnetic waves do not need a medium to travel through, so therefore, they are faster.
Elements<span>simplest form of matter that can exist under normal laaboratory conditions</span>
Is there any answers to choose from?
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Answer:
Sound waves and light waves need to change places.
Explanation:
In your choices, the best answer is the mass of the reactants and the mass of the products are no equal. The chemical equilibrium can take place in a close system and can not be affected by catalyst and is a reversible reaction. The best describe should be the concentration of reactants and products are constant.