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laiz [17]
3 years ago
13

Draw the Lewis dot structure of each molecule below.

Chemistry
1 answer:
AleksAgata [21]3 years ago
7 0
B(; hope it helps if does thank me later
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What is the electron configuration for lithium​
Oduvanchick [21]

Answer:

2,1

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2 years ago
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31.5 grams of an unknown substance is heated to 102.4 degrees Celsius and then placed into a calorimeter containing 103.5 grams
Alexxandr [17]
Heat gained in a system can be calculated by multiplying the given mass to the specific heat capacity of the substance and the temperature difference. It is expressed as follows:<span>

Heat = mC(T2-T1) 

When two objects are in contact, it should be that the heat lost is equal to what is gained by the other. From this, we can calculate things. We do as follows:

</span>Heat gained = Heat lost
mC(T2-T1) = - mC(T2-T1) 
31.5C (102.4 - 32.5) = 103.5(4.18)(32.5 - 24.5)
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Hope this helps.
5 0
3 years ago
18. What is the density of a substance with a mass of 0.90 kg and a volume of 1.2 mL?
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fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff

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3 years ago
Coffee is<br><br> homogeneous.<br><br> heterogeneous.
Basile [38]
The answer is homogeneous
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How many atoms of oxygen are represented in 2CaNO3?
MrRissso [65]

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