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nasty-shy [4]
3 years ago
9

How can we tell when something is polar or non-polar in an Inter-molecular Force?

Chemistry
1 answer:
Montano1993 [528]3 years ago
7 0
If the substance mixes with water it's polar. If it doesn't it ms non polar.
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if 45.0 ml of 1.50 M Ca(OH)2 are needed to neutralize 25.0 ml of HI of unknown concentration, what is the molarity of the HI?
ipn [44]

Answer:

M of HI = 5.4 M.

Explanation:

  • We have the rule: at neutralization, the no. of millimoles of acid is equal to the no. of millimoles of the base.

<em>(XMV) acid = (XMV) base.</em>

where, X is the no. of (H) or (OH) reproducible in acid or base, respectively.

M is the molarity of the acid or base.

V is the volume of the acid or base.

<em>(XMV) HI = (XMV) Ca(OH)₂.</em>

For HI; X = 1, M = ??? M, V = 25.0 mL.

For Ca(OH)₂, X = 2, M = 1.5 M, V = 45.0 mL.

<em>∴ M of HI = (XMV) Ca(OH)₂ / (XV) HI</em> = (2)(1.5 M)(45.0 mL) / (1)(25.0 mL) = <em>5.4 M.</em>

6 0
3 years ago
2. What is the difference between an element and a compound?​
melamori03 [73]

Answer:

element.

.it is pure substance composed of only one type of atoms.

.the number of element is more than 118.

compound.

.a compound is composed of atoms of two or more elements.

.the number of compound is very large in comparison of elements.

hope it help

6 0
2 years ago
"Two-thirty in the afternoon" is a measure of:<br><br> relative time<br> absolute time
ladessa [460]
The answer would be B) Absolute time.
5 0
3 years ago
Read 2 more answers
While out on a hike, you find an unknown mineral. How would you test the mineral to find out what it is?
notsponge [240]
Are there answer choices or is it just right it your self?
6 0
3 years ago
Light travels extremely rapidly (c = 3.00×108 m/s ). Suppose you had to travel 40 miles to work every day. If you traveled at th
Reptile [31]
Given , Speed of light = 3 × 10⁸ m/s 
             Distance = 40 × 1.61× 1000 m 
                           = 264400 m
 We know that, speed = distance/time 
                   so, time = distance/speed
                             t = 264400 / 3 × 10⁸
                             t = 0.00881333 sec  Approx
The answer is 0.00881333 sec  Approx
7 0
3 years ago
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