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jolli1 [7]
2 years ago
10

So I asked this question before but I messed it up so basically my best friend has a bf and her bf keeps messing with other girl

s and he even made one hand shake with the other girl no he is not cheating but he is friends with other girls and she thinks that he is because he made a handshake with one of them and how they're always so close because the other girls is right next to him and they always play a lot so. what should I do? how can I help it? should I talk to him?
Chemistry
1 answer:
OleMash [197]2 years ago
4 0

yeah, let her b0yfriend know what she told you and you are telling him that simply because you want to avoid problems between them.

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What is the difference between heterozygous and homozygous?
Yuri [45]

we can differentiate a heterozygous individual from a homozygote by analyzing their alleles. If the alleles in the homologous chromosomes are the same, we say that it is a homozygote. If the alleles are different, the individual is heterozygous.

5 0
3 years ago
A certain substance X has a normal freezing point of -6.4 C and a molal freezing point depression constant Kf= 3.96 degrees C.kg
Brut [27]

Answer:  1.0\times 10^2g

Explanation:

Depression in freezing point is given by:

\Delta T_f=i\times K_f\times m

\Delta T_f=T_f^0-T_f=(-6.4-(13.6))^0C=7.2^0C = Depression in freezing point

i= vant hoff factor = 1 (for non electrolyte like urea)

K_f = freezing point constant = 3.96^0C/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 (X)= 950 g = 0.95 kg  

Molar mass of non electrolyte (urea) = 60.06 g/mol

Mass of non electrolyte (urea) added = ?

7.2=1\times 3.96\times \frac{xg}{60.06 g/mol\times 0.95kg}

x=1.0\times 10^2g

Thus 1.0\times 10^2g urea was dissolved.

8 0
3 years ago
The tools shown in the diagram are used for gardening Each tool is made up
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Answer:

D

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7 0
3 years ago
PLS heLPPP. IM DYINGG
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Answer:

exothermic

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This chemical reaction is an exothermic reaction because heat is liberated into the environment.

In organic chemistry, the reaction is termed a combustion reaction. In such a reaction, a fuel combines with oxygen to produce carbon dioxide and water.

It is an energy transformation from chemical energy to heat energy.

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In the reaction depicted, heat is liberated.

4 0
3 years ago
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