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jolli1 [7]
3 years ago
9

A substance did not change it's chemical nature in reaction which mostly likely describe the reaction

Physics
1 answer:
Ad libitum [116K]3 years ago
8 0
If the substance doesn't change chemically, it is a physical reaction.
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one mole of water is equivalent to 18 grams of water. a glass of water has a mass of 200 g. how many moles of water is in this?
ehidna [41]
1 mole = 18 g
200 g = glass of water
200 ÷ 18 = 11.1
11.1 moles of water in 200 g (glass of water)
3 0
2 years ago
Air passing over an airplane's wing travels ____________________, and therefore exerts ____________________ pressure than air tr
Aleksandr [31]
<span>c. faster, less

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6 0
3 years ago
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Need help asap please and thank you​
nordsb [41]
Distance = speed x time

distance = 116 x 10

distance = 1160 m
6 0
3 years ago
What is the Sl unit for speed
Akimi4 [234]

Answer: meter per second

Explanation: meter per second

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3 0
3 years ago
Suppose a star has the same apparent brightness as Alpha Centauri A ( 2.7×10−8watt/m2 ) but is located at a distance of 300 ligh
iragen [17]

For  a star that has the same apparent brightness as Alpha Centauri A ( 2.7×10−8watt/m2 is mathematically given as

L=2.7*10^30w

<h3> What is its luminosity?</h3>

Generally, the equation for the luminosity  is mathematically given as

L=4*\pi^2*b

Therefore

L=4*\pi^2*b

L=4* \pi *(2.83*10^{18})*2.7*10^{-8}

L=2.7*10^30

In conclusion, the luminosity

L=2.7*10^30w

Read more about Light

brainly.com/question/25770676

6 0
1 year ago
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