shekinahconnoll3904

06.10.2019 • 

Biology

What are the products in this chemical reaction?

2h3po4+3ca(oh)2→ca3(po4)2+6h2o

group of answer choices

2h3po4 and 3ca(oh)2

ca3(po4)2 and 6h2o

2h3po4 and 6h2o

ca3(po4)2 and 3ca(oh)2

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question 94.5 pts
mrs. smith wrote down a chemical equation on the board and stated that mass is conserved in the reaction. what did she mean?
group of answer choices

there are more atoms on the product side.

there are equal numbers of atoms on both sides.

there are more atoms on the reaction side.

the number of atoms on each side changes.

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question 104.5 pts
using the law of conservation of matter, determine the number of grams of iron sulfide (fes) that will be produced in this reaction.

112g fe + 64g s → g fes
group of answer choices

64 grams

112 grams

176 grams

48 grams

Ответ:

barbiegirllover

01.05.2020

Biology

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The eggs and larvae of marine animals tend to require water with more dissolved oxygen in it than the adults do. if water flows from a freshwater source into a salt water bay, what effect would this have on the population of marine animals? a. the freshwater would increase the populations of marine animals because it holds more oxygen than the salt water. b. the nutrient-rich freshwater would encourage algal blooms, thereby increasing the levels of oxygen and marine animals. c. the freshwater would decrease the populations of marine animals because it would deplete the salt water of oxygen.

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