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prisoha [69]
4 years ago
10

Which property describes observable characteristics of matter like color?

Chemistry
2 answers:
son4ous [18]4 years ago
7 0

Answer:

a, chemical property

Oliga [24]4 years ago
5 0

Which property describes observable characteristics of matter like color? chemical property

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2C2H2 + 5O2 → 4CO2 + 2H2O
umka21 [38]
The answer is -2512.4 kJ
8 0
3 years ago
How do i pee correctly?
Volgvan

Answer:

The perfect pee is by adopting a posture where you sit on the toilet, with you feet flat on the ground, elbows on your knees and you lean forward. This is especially important in children because one in nine children develop bowel and bladder dysfunction purely due to inappropriate posture on the toilet.

Explanation:

6 0
2 years ago
Read 2 more answers
The vapour pressure of pure benzene at 20 °C is 75 Torr and that of pure methylbenzene is 25 Torr at the same tempera-ture. In a
ss7ja [257]

Answer:

Benzene: 37.5 Torr

Methylbenzene: 12.5 Torr

Explanation:

By Raoult's Law, each substance in a gas mixture contributes to the total pressure of the mixture proportionally to their respective mole fraction. So,

Ppartial = x*P°

Where x is the mole fraction (0.5 for each one because it's equimolar), and P° is the vapor pressure.

Benzene: Ppartial = 0.5 * 75 = 37.5 Torr

Methylbenzene: Ppartial = 0.5 * 25 = 12.5 Torr

3 0
3 years ago
How does the angle at which the sun's rays strike earth affect the number and types of organisms found in different areas of the
zlopas [31]
There's no math to this,
So I don't see why angle is in the question anyways...
The sun provides energy for animals and plants. A cave is a type of ecosystem that almost never sees the sunlight, and a forest is a type of ecosystem that sees the sunlight regularly. The difference between these two is- the caves have animals that have adapted to their environment, I think there's a species called ghost crabs that are blind and are white. This is because sunlight provides the vitamins to pigment skin. I could go on and on
5 0
3 years ago
The Himalaya mountain range stretches about 2,400 km from Tibet into Pakistan. It began forming when the Indian plate collided w
Tanya [424]
This immense mountain range began to form between 40 and 50 million years ago, when two large landmasses, India and Eurasia, driven by plate movement, collided. Because both these continental landmasses have about the same rock density, one plate could not be subducted under the other.Mar. 9, 2015
5 0
3 years ago
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