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Alex777 [14]
3 years ago
8

In which group of the Periodic Table do most of the elements exhibit both positive and negative oxidation states?

Chemistry
1 answer:
Shtirlitz [24]3 years ago
4 0
C i think but you should pick it anyway
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Use the dichotomous key below to identify the cell type.
xenn [34]

The dichotomous key is not given here, however, the correct dichotomous key is as follows:

step- 1a cell has a nucleus and organelles - go to step 2

        1b cell has no nucleus or organelles - bacterial cell

step- 2a cell has a cell wall - go to step 3

         2b cell has no cell wall - animal cell

step-  3a cell has chloroplasts - plant cell

3b cell has no chloroplasts - fungal cell

Using this dichotomous key the cell can be identified as - Fungal cell.

A dichotomous key is an essential scientific tool that is used to find out the various kinds of organisms on their observable traits. Dichotomous keys have a series of statements with two different choices in each step that will take the student or user to the correct identification.

Identification of the given cell:

1. Follow step 1.

  • If cells have a nucleus and organelles - yes then go to step 2

2. follow step 2.

  • 2a. if cell has a cell wall - yes go to step 3

3. follow step 3.

  • 3a. if cell has chloroplasts - no then fungal cell

Fungal cells have a nucleus and cell organelles enclosed with a cell wall around the plasma membrane but do not have chloroplast.

Thus, Using this dichotomous key the cell can be identified as - Fungal cell.

Learn more about fungal cells:

brainly.com/question/14470940

6 0
3 years ago
How many moles does 205g of helium, He contains ?
Ne4ueva [31]
<span>Moles = weight in g / atomic weight So, moles in 40 g of He = 40 / 4 = 10 moles.</span>
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3 years ago
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Choose the correct setup for calculating the mass
expeople1 [14]

Answer : A

Explanation:

Answer A is correct I just did the assignment.

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How many moles of Li would react with 4 moles of MgBr₂ in the reaction
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Answer:

two may be the answer (2)

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Isolate the lab immediately  mercury can be easily tracked throughout a lab by people walking on spill. laboratory staff can safely clean up small spill  . don't stamp on small pieces . carefully inspect the bench tops and floors before sitting. to  avoid hurting .

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