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Nitella [24]
3 years ago
8

Is it true or false that Science is a collection of facts that does not evolve. We have gained all the knowledge we can from sci

ence.
Chemistry
1 answer:
Masja [62]3 years ago
7 0
false

because science is an ever-growing subject we can never stop learning from it and expanding our knowledge.

(sorry that's the best that I can do)
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<em>The increase in kinetic energy leads to leakage of water from the syringe. When the outside temperature is more than the liquid temperature, say the syringe is out in sunshine, then the liquid becomes slightly warmer.</em>

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3 years ago
2. What mass of sodium chloride is produced when chlorine gas reacts with 2.29 grams of sodium iodide? The unbalanced equation i
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Answer:

0.88g

Explanation:

The reaction equation:

         2NaI  + Cl₂   →    2NaCl  + I₂

Given parameters:

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Unknown:

Mass of NaCl = ?

Solution:

To solve this problem, we work from the known to the unknown.

First find the number of NaI from the mass given;

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 Now insert the parameters and solve;

     Number of moles  = \frac{2.29}{149.9}   = 0.015mol

So;

 From the balanced reaction equation;

            2 moles of NaI produced 2 moles of NaCl

          0.015mole of NaI will produce 0.015mole of NaCl

Therefore;

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8 0
2 years ago
Periodic table puzzles
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I can explain if you ask

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2 years ago
2. Calculate the joules of energy required to heat 454.3g of water<br> frum 5.4°C to 98.6°C.
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Answer:

176984.38J

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It is known that it will take 4.184J of energy to change the temperature of water by one degree Celsius.

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= 93.2°c

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176984.38J

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3 years ago
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