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padilas [110]
1 year ago
8

Kevin travels from the United States to Australia for the winter, but when he gets there it feels more like summer. Which statem

ent explains this?
A) The Northern Hemisphere is experiencing an equinox.
B) The Southern Hemisphere is experiencing an equinox.
C) The Southern Hemisphere is tilted toward the sun, so it is summer in Australia.
D) The Southern Hemisphere is tilted away from the sun, so it is summer in Australia.
Chemistry
1 answer:
Karo-lina-s [1.5K]1 year ago
4 0

Answer:

The Northern Hemisphere is tilted away from the sun.

Explanation:

Kevin travels from the United States to Australia for the winter, but when he gets there it feels more like summer. Which statement explains this? The Northern Hemisphere is tilted away from the sun. When it is winter, the United States receives the least direct solar energy, as compared with the rest of the year.

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Express in scientific notation. Make sure your answer has the same number of significant figures as the starting value. (1.8 x 1
slamgirl [31]

Answer : The answer is, 0.2\times 10^{-4}

Explanation :

Scientific notation : It is defined as the way or representation of expressing the number that are too big or too small that is written in the decimal form. That means always written in the power of 10 form.

For example : 8000 is written as, 8.0\times 10^3  in this notation, the significant figure is, 1 but 0.8\times 10^4  in this notation, the significant figures are, 2

The given problem are :

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6 0
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a chemistry teacher adds 50.0 ml of 1.50 m h2so4 solution to 200 ml of water. What is the concentration of the final solution?
nevsk [136]

Answer:0.300M

Explanation:1) Data:

a) Initial solution

M = 1.50M

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b) Solvent added = 200 ml = 0.200 l

2) Formula:

Molarity: M = moles of solute / volume of solution is liters

3) Solution:

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