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tatuchka [14]
1 year ago
9

B. Describe hydrogen bonding. (1 point)

Chemistry
1 answer:
marishachu [46]1 year ago
6 0
Hydrogen bonding is an attractive force between a hydrogen atom attached to a electronegative element
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Find [cu2+] in a solution saturated with cu4(oh)6(so4) if [oh − ] is fixed at 2.3 ✕ 10−6 m. note that cu4(oh)6(so4) gives 1 mol
ki77a [65]
<span>

</span>Cu_4(OH)_6(SO_4)
<span>
You have OH-  conc = </span>2.3 ✕ 10−6 m
From the formula, you can observe the ratio of Cu2+ to OH- is  4 : 6 = 2:3

So, for 2.3 ✕ 10−6 m OH-
[Cu2+] = \frac{2}{3} \times 2.3 \times 10^{-6}

= 1.53  \times 10^{-6} &#10;

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3 years ago
Why do covalent compounds tend to be squishy?
Sav [38]

Answer:

Since they're easy to separate, covalent compounds have low melting and boiling points. 2) Covalent compounds are soft and squishy (compared to ionic compounds, anyway). The reason for this is similar to the reason that covalent compounds have low melting and boiling points. When you hit an ionic compound with something, it feels very hard

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2 years ago
What is the mass percentage for copper ?
RideAnS [48]

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To find the mass percent composition of an element, divide the mass contribution of the element by the total molecular mass. This number must then be multiplied by 100% to be expressed as a percent.

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2 years ago
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Vinegar is an heterogeneous mixture

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2 years ago
Calculate the mass (in g) of 2.1 x 1024 atoms of W.
Monica [59]
Atomic mass W = 183.84 u.m.a

183.84 g ----------- 6.02x10²⁴ atoms
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2.1x10²⁴ x 183.84 / 6.02x10²⁴ =

3.860x10²⁶ / 6.02x10²⁴ = 641.30 g

hope this helps!
4 0
2 years ago
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