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8_murik_8 [283]
3 years ago
10

Give three different between temporary and permanent change​

Chemistry
1 answer:
Morgarella [4.7K]3 years ago
4 0

Answer:

temporary is only for specific amount of time and permanent is suppost to mean forever

Explanation:

all i can say is not much can be permanent

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Atomic fission requires temperatures of one million degrees or hotter.<br><br> True <br> False
pickupchik [31]

<u>Answer:</u> The correct answer is false.

<u>Explanation:</u>

Atomic fission reactions are defined as reactions in which nucleus of an atom splits into two or more smaller nuclei. These reactions are carried out in nuclear reactors. The temperature range for the reactors are around 300°C.

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What is the value for the rate of constant, k(with units)?
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3 0
3 years ago
In the reaction Na2CO3 + 2HCl → 2NaCl + CO2 + H2O, how many grams of CO2 are produced when 7.5 moles of HCl is fully reacted?
Sidana [21]

Answer:

165 of CO₂.

Explanation:

In the reaction:

Na2CO3 + 2HCl → 2NaCl + CO2 + H2O

2 moles of HCl reacts producing 1 mole o CO₂

If 7.5 moles of HCl reacts, moles of CO₂ produced are:

7.5 moles of HCl ₓ ( 1 mol CO₂ / 2 mol HCl) = 3.75 mol CO₂. As molar mass of CO₂ is 44g/mol, mass of CO₂ is:

3.75 mol CO₂ ₓ (44g / 1mol) = <em>165 of CO₂ </em>

8 0
3 years ago
Read 2 more answers
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