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Fiesta28 [93]
4 years ago
10

Why is a match being struck a physical change

Chemistry
1 answer:
JulsSmile [24]4 years ago
3 0
Cuz the match can burn and turn in to ash so when it burn and turn in to ash you can't do nothing with the ash hop that make since
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Choose the products that complete the reaction NaHCO3+HC2H3O2
Novosadov [1.4K]

Answer:

The products will be;

CO₂ + H₂O + NaC₂H₃O₂

Explanation:

We are given;

Two reactants NaHCO₃ and HC₂H₃O₂

We are supposed to determine the products;

  • We need to know that hydrogen carbonates reacts with acids to give water, carbon dioxide and a salt as the products.

Therefore;

  • In this case, sodium hydrogen carbonates (baking soda) reacts with acetic acid to form water, carbon dioxide and sodium acetate.
  • The equation for the reaction is;

      NaHCO₃ + HC₂H₃O₂ → CO₂ + H₂O + NaC₂H₃O₂

  • Therefore, the products of the complete reaction between sodium hydrogen carbonate and acetic acid are CO₂ + H₂O + NaC₂H₃O₂
3 0
3 years ago
Sodiun atom, potassium atom, and cesium atoms have the same ?
Tpy6a [65]
Sodium atom , potassium atom and cesium atom have the same group number which is group 1
3 0
3 years ago
Read 2 more answers
There's a atom with atomic number of 9. it has 8 neutrons.what is the number of protons
Sidana [21]

Explanation:

proton normally = atomic number

protons = 9

3 0
3 years ago
Need help with this problem asap ​
ehidna [41]

Answer:

Is that all of the problem??

Explanation:

8 0
3 years ago
PLEASE HELP I NEED THIS ANSWERED IN 10 MINS PLEASE
elena-14-01-66 [18.8K]
We are given the equation to use which is:
ΔG = ΔH - TΔS

We are also given that:
ΔG = 173.3 kJ
T = 303 degrees kelvin
ΔH = 180.7 kJ

Substitute with these givens in the above equation to get ΔS as follows:
ΔG = ΔH - TΔS
173.3 = 180.7 - 303ΔS
303ΔS = 180.7 - 173.3 
303ΔS = 7.4
ΔS = 7.4 / 303 = 0.02442 kJ/K which is equivalent to 24.42 J/k

Based on the above calculations, the correct choice is:
D. 24.42 J/K
4 0
3 years ago
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