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posledela
3 years ago
9

Which of the following reactions involves two or more substances combining to form a new compound?

Chemistry
1 answer:
lozanna [386]3 years ago
5 0
What are the choices?
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Help please ASAP I’ll mark you as brainlister
noname [10]

Answer: FeO is called ferrous oxide while Fe2O3 is ferric oxide

Explanation:

Ferrous oxide, commonly known as iron(II) oxide contains iron that lost 2 elections in the oxidation process. So it is able to bond with other atoms that have an extra 2 electrons to share. Ferric oxide, is commonly known as iron(III) oxide

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3 years ago
Calculate the mass of 12.044*10^23atom of carbon
Keith_Richards [23]

Answer: 24 gram is a final Answer.

Explanation:1 mol of carbon weight is 12 gram then

12.044×1023 contain 2 mole carbon so

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Match each of the substances with the expected pH of the resulting solution when they are added to neutral water. Determine if a
Tamiku [17]
To determine the expected pH of the resulting solution of the following substances, create a balanced chemical equation of their ionization in water:

HI

HI + H2O ---> H+ + I-

It completely dissociates into H+ and I-. Due to the presence of the Hydronium Ion, the solution is acidic. 

KBr

KBr + H2O ----> HBr + KOH

The salt KBr is formed by a strong base and a weak acid, therefore, the solution it forms with water is basic. 

LiOH

LiOH + H2O ----> Li+ + OH-

It dissociates completely in water, turns into Li+ and OH-. Due to the presence of Hydroxide Ion, the solution becomes basic. 
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