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mario62 [17]
4 years ago
6

TIMED ASSIGNMENT

Chemistry
1 answer:
galina1969 [7]4 years ago
3 0

Answer:

27 grams

Explanation:

mass = density × volume

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write a chemical equation for the ionization of water. how do you indicate that this is a reversible action?
LiRa [457]

H₂O + H₂O ⇌ H₃O⁺ + OH⁻

You use two single-barbed arrows pointing in opposite directions (technically rightwards harpoon over leftwards harpoon) <em>to indicate a reversible reactio</em>n.


8 0
4 years ago
a 0.1 kg slinky sits at the top of a staircase with 14 J of potential energy. How high is the staircase?
Bezzdna [24]

Answer: The staircase is 14.28 m high.

Explanation:

Given : Mass = 0.1 kg

Potential energy = 14 J

Potential energy is the energy occupied by the position of a substance. Therefore, formula for potential energy is as follows.

P.E = mgh

where,

m = mass

g = gravitational energy = 9.8 m/s^{2}

h = height of object

Substitute the values into above formula as follows.

P.E = m \times g \times h\\14 J = 0.1 kg \times 9.8 m/s^{2} \times h\\h = \frac{14 J}{0.1 kg \times 9.8 m/s^{2}}\\= \frac{14 J}{0.98 m kg/s^{2}}\\= 14.28 Js^{2}/ mkg          (1 J s^{2}/m kg = 1 m)\\= 14.28 m

Thus, we can conclude that the staircase is 14.28 m high.

5 0
3 years ago
If you add salt continuously to a glass of water, eventually some salt will remain at the bottom. why?
GREYUIT [131]
Http://www.lcmrschooldistrict.com/demers/cbphysicalscience/Chp%208-3%20Solubility%20and%20Concentrat...

This website helped me understand the concept.
3 0
3 years ago
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igomit [66]

well for a start you need to learn how to type correctly then you have to plan out your schedule to what you can handle. :)  

3 0
3 years ago
Causes warm air to rise in the atmosphere. is what type of heat transfer?
shepuryov [24]

Answer:

osmosis is the answer

Explanation:

cause air rises from lower concentration to lower concentration

3 0
4 years ago
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