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Mandarinka [93]
3 years ago
14

Hunter is copying an angle. His work so far follows. Explain the importance of his next step. Which is drawing A-line through A

and Y using a straight edge​
Chemistry
1 answer:
forsale [732]3 years ago
6 0

Answer:

its c ma man .

This is the other ray that will make up the angle ∠AYZ and will complete the constructioExplanation:

if your taking the quick check these were my awnsers

1.c

2.b

3.d

4.c

5 .A

for the copying an angle quick check only

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Suppose that you add 26.7 g of an unknown molecular compound to 0.250 kg of benzene, which has a K f of 5.12 oC/m. With the adde
nadya68 [22]

Answer: The molar mass of the unknown compound is 200 g/mol

Explanation:

Depression in freezing point is given by:

\Delta T_f=i\times K_f\times m

\Delta T_f=2.74^0C = Depression in freezing point

i= vant hoff factor = 1 (for molecular compound)

K_f = freezing point constant = 5.12^0C/m

m= molality

\Delta T_f=i\times K_f\times \frac{\text{mass of solute}}{\text{molar mass of solute}\times \text{weight of solvent in kg}}

Weight of solvent (benzene)= 0.250 kg  

Molar mass of solute = M g/mol

Mass of solute  = 26.7 g

2.74^0C=1\times 5.12\times \frac{26.7g}{Mg/mol\times 0.250kg}

M=200g/mol

Thus the molar mass of the unknown compound is 200 g/mol

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What is a radioactive idotope?
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