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Tasya [4]
2 years ago
13

What would be the right answer?

Chemistry
2 answers:
KengaRu [80]2 years ago
4 0

Answer:

5 is the answer since they are asking for pair. And 3 pairs in the triple bond

padilas [110]2 years ago
3 0

Answer:hydrogen=1

carbon=3

total=2h+c=2×1+3=5

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When a volcano erupt,what suggestion can you give to those people living near in the area.
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Explanation:

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Which is an example of an organism? A. an octopus B. sand granules C. water D. the colors of a feather
denpristay [2]
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5 0
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Help please!! I need to turn this in by midnight! EST
nignag [31]

Answer:

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3 years ago
Formulate the sequence of steps needed to prepare 250.0 mL of a 0.005 M aqueous solution from solid KMnO4 and pure water.
S_A_V [24]

Answer:

Molarity is a unit that measures how much moles of solute dissolved in a liter of solvent. Molarity expressed using capital M while molarity, a different unit, expressed using lower case m.  

We want to make 0.005 M solution which means we need 0.005 moles of KmnO4 per liter of water. First, we have to calculate how many grams of KMnO4 we need for the solution.

We want to make 250ml solution, so the number of moles of KMnO4 we need will be:  0.005 mol/liter *(250 ml * 1liter/1000ml)= 0.005 mol/liter  * 1/4 liter = 0.00125 moles

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Then we add water to the container slowly until its volume reaches the 250ml mark.

3 0
3 years ago
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