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lapo4ka [179]
3 years ago
9

The term element refers to atoms that have the same number of _______.

Chemistry
2 answers:
erica [24]3 years ago
7 0
I guess it’s Electrons
hram777 [196]3 years ago
4 0

A. Protons

Carbon contains all atoms that have 6 protons and 6 electrons.

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1 Calcium carbonate breaks down on heating to produce calcium oxide and carbon dioxide gas.
Alborosie

Answer:  See below

Explanation:

1.  a)  0.15 moles calcium carbonate  (15g/100g/mole)

   b)  0.15 moles CaO  (molar ratio of CaO to CaCO3 is 1:1)

   c)   8.4 grams CaO  (0.15 moles)*(56 grams/mole)

2. a)  0.274 moles Na2O  (17g/62 grams/mole)

   b)  46.6 grams NaNO3  (2 moles NaNO3/1 mole Na2O)*(0.274 moles Na2O)*(85 g/mole NaNO3)

7 0
2 years ago
Carbon 14 decays to Carbon 12 and has a half-life of 5730 years. If a fossil is analysed and it has 5 grams of Carbon 14 and 15
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Answer:

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Explanation:

7 0
2 years ago
"Two-thirty in the afternoon" is a measure of:<br><br> relative time<br> absolute time
ladessa [460]
The answer would be B) Absolute time.
5 0
3 years ago
Read 2 more answers
Which skier will have a greater potential energy? Justify your answer.
pochemuha

Answer: Skier 1 will have more potential energy because he is higher than skier 2

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P.E=m\times g\times h

m= mass of the body

g= acceleration due to gravity

h= height of body

Thus if the masses of two bodies are same, the one with greater height possess greater potential energy.

6 0
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Who made the periodic table?
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3 years ago
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