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pentagon [3]
3 years ago
11

Use the drop-down menus to complete each statement about eubacteria and archaebacteria.

Chemistry
1 answer:
miskamm [114]3 years ago
5 0

Answer:

the first one is eubacteria the second one is both the third one is both and the fourth one is archaebacteria

Explanation:

i just did it sorry im late

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If you need to extract a 50 ml aqueous solution with 50 ml of dichloromethane, what is the minimum size of a separatory funnel y
tatuchka [14]

The dichloromethane (DCM) has less density than water and also the polarity of water is much more than DCM. So the mixture of water and dichloromethane will always be a heterogeneous mixture. In the mixture dichloromethane will be always up of the water layer. The volume of the separatory funnel which contains the mixture of DCM and water must have to be more than the total volume of the liquids thus the volume of the funnel will be more than (50+50) = 100mL.

The caution have to consider during the separation are-

1. The separatory funnel have to shake well with lid and have to settle down for some times until the two liquid separated.

2. The lid should be open very slowly as the vapor pressure of DCM is more and it will float on the water.

3. After this the stopcock should be opened and slowly the water will come out first followed by DCM.      

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3 years ago
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Answer:

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A liquid medicine is labeled as having 5% active ingredient, by volume. If
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Answer:

2.5 mL

Explanation:

Step 1: Given data

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Step 2: Calculate the amount of the active ingredient in the medicine

The concentration of the active ingredient is 5% v/v, that is, there are 5 mL of the active ingredient per 100 mL of the medicine. The volume of the active ingredient is 50 mL of the medicine is:

50 mL Med × 5 mL AI/100 mL Med = 2.5 mL AI

4 0
3 years ago
Which of the following elements could replace copper in a single replacement reaction?
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I’m thinking it’s gold because lead isn’t with cooper meaning that if u switch lead with cooper it won’t work at all .
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Which products are formed when aluminum is added to a silver chloride solution? Use the activity series below if needed. Al>
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Answer:

AlCl3 and Ag

Explanation:

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3 years ago
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