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damaskus [11]
3 years ago
9

Is exploding dynamite a chemical change or a physical change

Chemistry
2 answers:
Nookie1986 [14]3 years ago
6 0

Answer: Yes it is a chemical reaction.

Explanation: Although this is a chemical reaction that is very exothermic it can cause other chemical reactions or physical changes around its environment. When a chemical Reaction Takes place the atoms rearrange to for a new compound. On the other hand, when a physical reaction takes place... how should i put this... example- I broke my pencil in half, its still a pencil now its just in two pieces.

nexus9112 [7]3 years ago
5 0
Exploding dynamite would be a chemical change because you cannot revert it back to the original dynamite once it exploded. 
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Which of the following is an example of a physical change?(1 point)
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Calculate the amount of ATP in kg that is turned over by a resting human every 24 hours. Assume that a typical human contains ~5
valentinak56 [21]

Answer:

The correct answer is 66.35 kilograms.

Explanation:

Based on the data given in the question, the energy consumed by the body of a human being is 50%. Based on the given data, the energy consumed in a day is 8000 kJ, 50 percent is the energy transfer efficiency. Thus, the consumption of total energy is 4000 kJ, and for the transformation of ADP to ATP, the energy involved is 30.6 kJ per mole.  

Hence, the total ATP produced in the process is,  

ATP = 4000 kJ / 30.6 kJ/mol

= 130.7189 mol.  

Thus, with the energy transfer efficiency of 50 percent, the total moles of ATP produced is 130.7 mol.  

The mass of ATP can be calculated by using the formula,  

moles = mass/molecular mass

The molecular mass of ATP is 507.18 g per mol

Now by putting the values we get,  

mass of ATP = 130.7189 mol * 507.18 g/mol

= 66298.011 g or 66.298 kg

It is mentioned that human comprise 50 g of ATP or 0.05 kg of ATP. Therefore, the sum of the available ATP will be.  

= Total production of ATP + Total ATP available

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= 66.348 kg

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5 0
3 years ago
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