Assume that the test tube shown in the transparency
started out having 15.00 g of
mercury(II) oxide. After heating
the test tube, you find no
mercury(II) oxide left and 1.11 g
of oxygen gas.
What mass of liquid mercury
was produced by the
chemical reaction? Show your
work.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

b is the correct answer

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shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.