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2 years ago

When it’s summer in the northern hemisphere what Season is it in the Southern Hemisphere

Chemistry

2 answers:

Greeley [361]2 years ago

4 0

Answer:

Winter

Explanation:

I dont know but whatev

Arlecino [84]2 years ago

4 0

Answer:

Winter

Explanation:

The seasonal cycle in the polar and temperate zones of one hemisphere is opposite to that of the other. Therefore, When it is summer in the Northern Hemisphere, it is winter in the Southern, and vice versa.

hope it helps :)

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Calculate the freezing point of a solution made from 220g of octane (C Hua), molar mass = 114,0 gmol dissolved in 1480 g of benz

stiv31 [10]

Answer: Freezing point of a solution will be $-1.16^0C$

Explanation:

Depression in freezing point is given by:

$\Delta T_f=i\times K_f\times m$

$\Delta T_f=T_f^0-T_f=(5.50-T_f)^0C$ = Depression in freezing point

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

$K_f$ = 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)= 1480 g =1.48 kg

Molar mass of solute (octane) = 114.0 g/mol

Mass of solute (octane) = 220 g

$(5.50-T_f)^0C=1\times 5.12\times \frac{220g}{114.0 g/mol\times 1.48kg}$

$(5.50-T_f)^0C=6.68$

$T_f=-1.16^0C$

Thus the freezing point of a solution will be $-1.16^0C$

3 0

2 years ago

Find the number of moles of argon in 364 grams of argon.

serg [7]

Answer:D. 9.1 mole Ar

Explanation:

364 g Ar x 1 mole Ar / 40 g Ar

= 9.1 moles Ar

3 0

3 years ago

Which property of a substance is not altered by a physical change?

antiseptic1488 [7]

C. Composition

is the answer

3 0

3 years ago

Really need help with this<br> Will give brainliest to whoever has the correct answer

lukranit [14]

Answer:

$a=0.4\ m/s^2$

Explanation:

1. Given that,

Initial speed of a bicycle, u = 4 m/s

The final speed of a bicycle, v = 6 m/s

Time, t = 6 s

We need to find the acceleration of the bicycle. We know that, acceleration is equal to the change in speed divided by time taken. So,

$a=\dfrac{v-u}{t}\\\\a=\dfrac{6-4}{5}\\\\a=0.4\ m/s^2$

So, the acceleration of the bicycle is equal to $0.4\ m/s^2$ .

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3 years ago

Please help me I will give you the brain thing and extra points. image below part

jekas [21]

D is the correct answer... if u need in depth let me know

3 0

2 years ago

Read 2 more answers