lorraneb31
08.12.2020 •
Chemistry
A group of students wants to know what amount of a particular fertilizer will produce larger watermelons. Which of the following is the best choice to answer their question?
Students should make observations of various fertilizers.
Students should conduct an investigation about various types of fertilizers.
Students should conduct a controlled experiment where they change the amount of fertilizer for watermelon plants and measure the difference in size of the watermelons.
Students should conduct both an investigation of various fertilizers and a controlled experiment where they change the amount of the particular fertilizer for watermelon plants and measure the differences.
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Ответ:
the students should make thier own fertilizer :D
It is quite simple,
1. collect student's feces (80% female 20%male)
2. stir student feces and incorparate orange juice
3. add male worms
4. dilute with student urine (gender matter)
5. remove male worms and add female worms
6. remove female worms
7. drink
Explanation:
Ответ:
Mass = 1946 g
Explanation:
Given data:
Number of moles of GaI₃ = 4.32 mol
Mass of GaI₃ = ?
Solution:
Formula:
Mass = number of moles × molar mass
Molar mass of GaI₃ = 450.44 g/mol
by putting values,
Mass = 4.32 mol × 450.44 g/mol
Mass = 1946 g