V=d/t
v=18m/3sec
v=6m/s
or 6 meters per second.
no of moles in 4 grams of H2=4/2=2
2H2+O2............2H2O
the reaction shows that 2 moles of H2 react with 1 mole of O2 to produced 2 moles H2O
now no of moles in 36grams of H2O=36/18=2
therefore he needed 1 mole of O2 to produce 36 grams of H2O and 1 mole of oxygen is equal to 32 grams of O2
The action was him hitting the ball the reaction was the ball moving after being hit
Avogadro's number is 6.022×1023 molecules. Scientists use it to discuss and compare large numbers. It is useful because substances in everyday quantities contain large numbers of atoms and molecules.
Sentence II is not a correctly formatted hypothesis because it is factually inaccurate because plants need light source to grow as they provide food for them by photosynthesis.
<h3>What is photosynthesis?</h3>
The photosynthesis is a process into which plants make their food by absorbing carbon dioxide and releasing oxygen in the environment.
Plants absorb light from sun rays and converts the light source to energy and produce glucose this process or reaction is known as photosynthesis.
Therefore, sentence II is not a correctly formatted hypothesis because it is factually inaccurate because plants need light source to grow as they provide food for them by photosynthesis.
Learn more about photosynthesis, here:
brainly.com/question/13201447
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