7th grade science , help me please :))

Chemistry

1 answer:

konstantin123 [22]3 years ago

7 0

1. Organisms in just large molecules like carbohydrates proteins and fats and convert them into small molecules like carbon dioxide and water.
2. During cellular respiration of glucose molecule is gradually broken down into carbon dioxide and water. Then some ATP is produced directly in the reactance that transformers glucose.
3. Photosynthesis converts carbon dioxide and water into oxygen and glucose. While, cellular respiration converts oxygen and glucose into water and carbon dioxide.

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2. How would type of substance affect the rate of reaction?

nasty-shy [4]

Answer: IN terms of the collision theory, increasing the concentration of a reactant increases in the number of collisions between the reacting species per second and therefore increases the reaction rate.

Explanation: hope u get it right

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3 years ago

A 100 W light bulb is placed in a cylinder equipped with a moveable piston. The light bulb is turned on for 2.0×10−2 hour, and t

drek231 [11]

Answer:

(a) ΔU = 7.2x10²

(b) W = -5.1x10²

(c) q = 5.2x10²

Explanation:

From the definition of power (p), we have:

$p = \frac {\Delta W}{\Delta t} = \frac {\Delta U}{\Delta t}$ (1)