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BARSIC [14]
3 years ago
9

Which of the following is the unit of surface tension?​

Chemistry
1 answer:
nekit [7.7K]3 years ago
6 0

Answer:

it should be N/m or newton per meter.

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Write the appropriate symbol for each of the following isotopes: (a) Z 11, A 23; (b) Z= 28, A= 64; (c) Z= 50, A =115; (d) Z= 20,
prohojiy [21]

Explanation:  

Z = atomic mass of the element and  , A = atomic mass of the element .

a) Z = 11, A =  23

Element = Sodium

  symbol: ²³₁₁Na  .

b) Z = 28, A =  64

Element = Nickel

  symbol: ⁶⁴₂₈Ni  .

c) Z = 50, A = 115

Element = tin

  symbol: ¹¹⁵₅₀Sn  .

d) Z = 20, A = 42

Element = Calcium

  symbol: ⁴²₂₀Ca .

6 0
3 years ago
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STEM is an acronym meaning

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8 0
3 years ago
A compound has the empirical formula chcl. a 256ml flask, at 373 k and 750. torr, contains 0.800 g of the gaseous compound. give
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How does the potential energy of reactants compare to the potential energy of products in an endothermic reaction?
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Answer:

Potential energy of reactants in an endothermic reaction is lower than the potential energy of products because in endothermic reaction system absorb energy from  environment. We can see that in the lower temperature of environment after completed reaction.

Explanation:

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