Chemistry, 17.10.2019 00:30 fahad7007

Which of the following statements about the carbon cycle is not true?

carbon dioxide used by plants comes from the atmosphere.
plants need carbon to grow.
plants consume carbon through transpiration.
carbon from decomposed plants is a source of fossil fuel.

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 00:30

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

Answers: 1

Answer

Chemistry, 22.06.2019 01:20

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

Answers: 2

Answer

Chemistry, 22.06.2019 02:00

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Answers: 2

Answer

Chemistry, 22.06.2019 14:30

Chemistry worksheet - i am not sure what they are asking for exactly?

Answers: 1

Answer

You know the right answer?

Which of the following statements about the carbon cycle is not true?

carbon dioxide us...

Questions