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Elan Coil [88]
3 years ago
9

Which elements can join with other elements to form covalent bonds? Check all that apply.

Chemistry
2 answers:
siniylev [52]3 years ago
7 0
I think the answer would be carbon
Juliette [100K]3 years ago
6 0
C it comes from the air and mixes
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13. What is the symbol for Enthalpy change?
OverLord2011 [107]

Answer:

Explanation:

13 ) symbol of enthalpy change = Δ H .

14 ) enthalpy change is nothing but heat absorbed or evolved .

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Δ H .= m Lf , m is mass and Ls is latent heat of fusion

During evaporation, enthalpy change

Δ H .= m Lv , m is mass and Lv is latent heat of evaporation

during temperature rise , enthalpy  change

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3 years ago
Balancing chemical equations
kolbaska11 [484]

Answer:

2B2 + 3O2 → 2B2O3

Explanation:

Balance The Equation: B2 + O2 = B2O3

1. Label Each Compound With a Variable

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2. Create a System of Equations, One Per Element

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  O: 0a + 2b = 3c

3. Solve For All Variables (using substitution, gauss elimination, or a calculator)

  a = 2

  b = 3

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4. Substitute Coefficients and Verify Result

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  O: 6 6 ✔️

hope this helps!

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2 years ago
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