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Burning wood is a chemical reaction that requires oxygen. Sometimes people start a fire by lighting paper with a match and then blowing gently on the lit paper, Blowing on
the lit paper helps the reaction rate, or fire, go faster. Blowing on the lit paper moves more ait, which contains oxygen, over the reaction site
Which statement is true about why this works?
Blowing on fire reduces the temperature and increases reaction rate
Blowing on fire increases the concentration of oxygen and increases the reaction rate
Blowing on fire increases the temperature and increases reaction rate
Blowing on fire decreases the concentration of oxygen and increases the reaction rate
Answers: 1
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Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?
Answers: 2
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The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of
Answers: 2
Chemistry, 22.06.2019 23:00
How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.
Answers: 1
PLZZ HELP ITS TIMED
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