What rule states that atoms gain, lose. or share electrons in order to get 8 valence electrons?

Which of the following does not occur during the embryonic stage? a. the bones become fully developed. b. the tail begins to recede. c. the heart, brain, and spinal cord develop. d. the eyes and ears begin to form.

How does the length of the small intestine assist digestion? The length ensures that nutrients are absorbed quickly into the bloodstream. The length increases the surface area so that it can better absorb nutrients.

The concentrations of a reaction are measured to determine reaction rates. If the concentration of the reaction's product increases from 0.0250M to 0.484M in 3.00mins, determine the average reaction rate during this time period? 1.

A diagram illustrates that grass is eaten by insects, birds, and mice. The insects are eaten by hawks, snakes, and toads. The birds and mice are eaten by foxes, hawks, and snakes. The toad is also eaten by the snake.

As molecules are formed from metabolism, entropy __ and the universe becomes less disordered. A. is decreased B. is increased C. moves closer to equilibrium D. is unchanged

Which term is part of photosynthesis when energy is used to make sugars glucose

An experimental forest ecosystem is enclosed in a sealed greenhouse. The entire ecosystem, including the air and soil, is treated with an extremely potent fungicide that kills all fungal life stages including spores. What will probably happen next?

How much heat is absorbed by a 48g iron skillet when its temperature rises from 8oC to 111oC? Joules

The half-life of protactinium-226 is 2 minutes if you started with 20 grams of pa-226 how much do you have after 8 minutes

What does it mean to reduce? Give examples.