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gtnhenbr [62]
3 years ago
12

What objects are attrackted too eachother by force of what

Chemistry
1 answer:
adoni [48]3 years ago
5 0
Magnets are attracted to each other
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according to the collision theory, for a reaction to be successful, it must have correct orientation of the atoms of the reactan
DerKrebs [107]
The collision must have sufficient energy as well.  If sufficient energy is not present the activation energy will not be over come and the bonds in the reactants will not be broken.

I hope this helps.  Let me know if anything is unclear.
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What might cause your stomach pH to become more acidic than normal
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It might be that its difficult to digest food.
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A solid mixture consists of 47.6g of KNO3 (potassium nitrate) and 8.4g of K2SO4 (potassium sulfate). The mixture is added to 130
IgorLugansk [536]

<u>Answer:</u> No crystals of potassium sulfate will be seen at 0°C for the given amount.

<u>Explanation:</u>

We are given:

Mass of potassium nitrate = 47.6 g

Mass of potassium sulfate = 8.4 g

Mass of water = 130. g

Solubility of potassium sulfate in water at 0°C = 7.4 g/100 g

This means that 7.4 grams of potassium sulfate is soluble in 100 grams of water

Applying unitary method:

In 100 grams of water, the amount of potassium sulfate dissolved is 7.4 grams

So, in 130 grams of water, the amount of potassium sulfate dissolved will be \frac{7.4}{100}\times 130=9.62g

As, the soluble amount is greater than the given amount of potassium sulfate

This means that, all of potassium sulfate will be dissolved.

Hence, no crystals of potassium sulfate will be seen at 0°C for the given amount.

7 0
3 years ago
If 200 g of water is heated from 20 C to 40 C, then what is the heat added in kilocalories (same as food calories)?
Maslowich

Answer: 4Kcal

Explanation:

H= mcø

M=200g

C= 1 cal/g/°c

Ø= 40-20=20°c

H= 200*1*20= 4000calories= 4Kcal

8 0
2 years ago
In 450 BCE, Greek philosopher Democritus first thought of the existence
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Answer:

A. Invisible

Explanation:

3 0
3 years ago
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