Chemistry, 03.12.2021 01:10 malachilaurenc
A scientist studies the growth of plants in a laboratory. Which experimental procedure would provide evidence that
plants need nitrogen to grow? (1 point)
Two plants are grown in pots of soil with different amounts of nitrogen. The plants have sufficient
water and sunlight. The scientist measures plant growth.
Seeds are planted in two identical pots of soil. Both pots are given adequate water and exposure to
sunlight. A plant grows in one pot. The scientist measures the nitrogen content of the soil
Identical plants are placed in two air-tight containers with sufficient exposure to sunlight. One
container has nitrogen gas, and the other has room air. The scientist measures plant growth
Seeds are planted in two terrariums. Both terrariums are given adequate water and exposure to
sunlight. A plant grows in one terrarium. The scientist measures the nitrogen content of the air.
Answers: 2
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How many moles of bromine are needed to produce 3.23 moles of potassium bromide
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Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g. what is the percent by mass of water in the hydrate? %
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How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.
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What is formed when amino acids form long chains or polymerize
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A scientist studies the growth of plants in a laboratory. Which experimental procedure would provide...
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