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galben [10]
3 years ago
8

How many atoms of nitrogen on the reactant side

Chemistry
2 answers:
Taya2010 [7]3 years ago
6 0

Answer:

2 nitrogen atoms

Explanation:

nordsb [41]3 years ago
6 0
The answer is 2 nitrogen atoms
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How many grams are in 1.6 moles of potassium bromide?​
slava [35]

Answer:

190.4g

Explanation:

1.6mol of KBr (119.002g KBr/1 mol) = 190.4g

since you want to find grams, take the molar mass of KBr (119.002) per 1 mol and use it as your conversion factor (119.002g KBr/1 mol) which will then cancel out mols and leave you with grams.

6 0
3 years ago
Write the Ka expression for an aqueous solution of hydrofluoric acid: (Note that either the numerator or denominator may contain
damaskus [11]

Answer:

Ka = ( [H₃O⁺] . [F⁻] ) / [HF]

Explanation:

HF is a weak acid which in water, keeps this equilibrium

HF (aq)  +  H₂O (l)  ⇄  H₃O⁺ (aq)  +  F⁻ (aq)      Ka

2H₂O (l)  ⇄  H₃O⁺ (l)  +  OH⁻ (aq)   Kw

HF is the weak acid

F⁻ is the conjugate stron base

Let's make the expression for K

K = ( [H₃O⁺] . [F⁻] ) / [HF] . [H₂O]

K . [H₂O] = ( [H₃O⁺] . [F⁻] ) / [HF]

K . [H₂O] = Ka

Ka, the acid dissociation constant, includes Kwater.

4 0
2 years ago
A female rabbit had 4 babies. For phenotypes: two of the babies were black and two of the babies were white. In rabbits, the all
nasty-shy [4]

Answer:put the rabbits mixed

Explanation:

7 0
2 years ago
What information does the atomic number provide about an atom?
rjkz [21]

Identifies the number of protons a single atom of the element contains.

The atomic number helps people identify elements according to the number of protons one atom of the element has. It essentially defines the element
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2 years ago
1. Al Einstein drives north 3 blocks, then turns east and drives 3
Dovator [93]
He could have simply went East 3 blocks
3 0
3 years ago
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