In plants, potassium is needed for metabolic. processes including the regulation of plant growth. Potassium (K) is required by plants for protein synthesis, photosynthesis, enzymes, and ionic balance. Potassium-deficient potato plants may show purple or brown spots and plant, root, and seed growth is reduced. John has noticed that the leaves of his recent crop of potatoes had brown spots, the potatoes were undersized, and the crop yield was low. Part E If John's potato farm has an area of 30 5 hectares, how many pounds of fertilizer does John need to use Express your answer to two significant figures and include the appropriate units. Tests on soil samples indicated thaf the potassium levels were below 100 ppm, which indicated that supplemental potassium was needed. John applied a fertilizer containing potassium chloride (KCl). To apply the correct amount of potassium, John needs to apply 170 kg of fertilizer per hectare. HA Value Units Submit Request Answer

Please answer numbers 1, 2, and 3 correctly.

fill in the blank. first box is completed for you.

Chemistry part c is incorrect the answer is not 0.

Deuterium (chemical symbol - D) is a heavy isotope of hydrogen, H. Despite having an extra neutron in its nucleus, deuterium reacts very similarly to hydrogen. What deuterated compounds would be formed in the shown reaction ? D2 Pd/C D O1. C C D O 2.0 B 3. O 4, a 1:1 mixture of B and C O 5. A

The reactions that you used to identify ions in solutions require certain properties to be useful. Name three properties that allowed you to make an identification.

Please answer question 19 part A and B

Morphine sulfate used for severe pain relief is an opiate alkaloid isolated from the plant Papaver somniferum. In the central nervous and gastrointestinal systems, this agent has widespread effects including analgesia, anxiolysis, euphoria, sedation, respiratory depression, and gastrointestinal system smooth muscle contraction. Morphine sulfate has 34 Carbon atoms, 40 atoms of Hydrogen, 2 Nitrogen atoms, 10 Oxygen atoms, and 1 atom of Sulfur. What is the Chemical formula of this compound:

Nickel metal reacts with cadmium(II) nitrate reacts to produce cadmium metal and nickel(II) nitrate. Write the reaction equation on your scratch paper before answering this question. For this reaction Group of answer choices Ni is the reducing agent and it gains electrons. Cd2+ is the reducing agent and it loses electrons. Cd2+ is the oxidizing agent and it loses electrons. Cd2+ is the oxidizing agent and it gains electrons. Ni is the oxidizing agent and it loses electrons.

For the following reaction, select all the statements that are correct. Br Br Brz Br Br Br 2 A. 1 is the product of this reaction. B. 2 is the product of this reaction. C. 3 is the product of this reaction. D. 4 is the product of this reaction. E. There will be no reaction between these two chemicals. 3 Br Br 4