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saul85 [17]
3 years ago
12

Item 4

Chemistry
1 answer:
STALIN [3.7K]3 years ago
5 0
Cells make up tissues. Tissues make up organs, organs make up systems, systems make up organism
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Write a net ionic equation to show how codeine, c18h21o3n, behaves as a base in water.
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Actually, the ionic equation for this is a reversible equation since codeine is a weak base. Any weak base or weak acids do not completely dissociate which makes them a reversible process. The ionic equation for this case is:

<span>C18H21O3N  +  H3O+  </span><=> C18H21O3NH+ +  H2O 

7 0
3 years ago
A beaker cannot be used for measuring the volume of a liquid because _____.
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Answer:

Data obtained can't be accurate.

Explanation:

A beaker can't be used for measuring the volume of a liquid because they did not calculate volume of a liquid accurately and precisely. The marks present on the beaker are not accurate, it is just an estimate so by measuring the volume of any liquid using beaker give us a false data so that's why beaker are not used for the measurement of a volume.

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what is the predicted order of fist ionization energies from highest to lowest for beryllium, calcium, magnesium, and stronium?
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Lowest to highest:
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2 years ago
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Which example is an exothermic reaction?
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C. Condensation

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When molecules release heat energy, it is called exothermic. In this case, condensation would be an example of this.

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What volume of 2.50 M Na2SO4 solution contains 71.0 grams of Na2SO4?
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0.02

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