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tia_tia [17]
3 years ago
5

=

Chemistry
2 answers:
harkovskaia [24]3 years ago
5 0
The answer is C.) Grinding Chalk into a fine powder because as you can see from the others, the words REACTING, MIXING, and anything dealing with rust, is a result of a chemical change happening. Grinding chalk is not changing the fact that it is chalk, all it is doing is changing its physical shape. I hope you found this helpful have a good night!
Alex787 [66]3 years ago
4 0

Answer:

Grinidng chalk into a fine powder

Explanation:

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Hey sample of helium occupies 235 mL at 788 tour and 25°C. If the sample is condensed into a 0.115 L flask what will be the new
7nadin3 [17]

the system is in constant temperature

so it follows Boyle's law

i.e.P1V1=P2P2

where P1=initial pressure=788 tour

P2=final pressure= ?

V1=initial volume=235 ml

V2=final volume=0.115 ml

3 0
4 years ago
How is aluminum an example of extensive<br> property?
Marrrta [24]

Answer:

If the property depends on the amount of matter present, it is an extensive property. The mass and volume of a substance are examples of extensive properties; for instance, a gallon of milk has a larger mass and volume than a cup of milk.

Explanation:

3 0
3 years ago
Why do you think the Sun is not at the center of Mercury’s orbit?
Paul [167]

Answer:

Like Venus, Mercury orbits the Sun within Earth's orbit as an inferior planet, and its apparent distance from the Sun as viewed from Earth never exceeds 28°. This proximity to the Sun means the planet can only be seen near the western horizon after sunset or the eastern horizon before sunrise, usually in twilight.

Explanation:

3 0
3 years ago
Given 1kg= 2.20 lbs, how many kilograms are in 338 kg
faltersainse [42]

Answer:

154

Explanation:

8 0
4 years ago
Muszę napisać wzór sumatryczny wysyłam załącznik
ioda

Cześć, nie mówię po polsku, więc zrobiłem to w Tłumaczu Google, więc przepraszam, jeśli coś brzmi śmiesznie.

chlor (VII) i tlen - ten wzór to CI_{2} O_{7}, a tlenek chloru jest bezwodnikiem kwasu nadchlorowego.

węgiel i wodór - wzór na węgiel i wodór to CnH2n + 2), jest to związek organiczny, a niższa klasyfikacja jest taka, że jest to również węglowodór aromatyczny.

Mam nadzieję, że to pomoże, błogosławionego i cudownego dnia! :-)

-Cutiepatutie

7 0
4 years ago
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