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laila [671]
2 years ago
6

Which statement is true for a cooling curve​

Chemistry
1 answer:
rjkz [21]2 years ago
6 0

what are your choices

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Which choice describes a population? A. all the gray squirrels that live in a forest B. a nonliving factor in an organism's envi
goldenfox [79]
I believe D. because all the organisms that live in a lake can be a bunch of living things that would be considered a population and not a species. I canceled out B. from the get go because, I don’t believe non living organisms can be in a population ?

Please get back to me if I’m right or wrong :)
5 0
3 years ago
I WIll upvote for answer<br> Balance the following reaction Fe^2 O ^3 +HCI-&gt;FeCI^3+H^2O
kotykmax [81]
Fe^2 O^3 + 6HCl --> 2FeCl^3 + 3H^2 O
7 0
3 years ago
2. A quantity of 1.922g of methanol (CH3OH) was burned in a constant-volume
Cerrena [4.2K]
Mass of methanol (CH3OH) = 1.922 g
Change in Temperature (t) = 4.20°C
Heat capacity of the bomb plus water = 10.4 KJ/oC
The heat absorbed by the bomb and water is equal to the product of the heat capacity and the temperature change.
Let’s assume that no heat is lost to the surroundings. First, let’s calculate the heat changes in the calorimeter. This is calculated using the formula shown below:
qcal = Ccalt
Where, qcal = heat of reaction
Ccal = heat capacity of calorimeter
t = change in temperature of the sample
Now, let’s calculate qcal:
qcal = (10.4 kJ/°C)(4.20°C)
= 43.68 kJ
Always qsys = qcal + qrxn = 0,
qrxn = -43.68 kJ
The heat change of the reaction is - 43.68 kJ which is the heat released by the combustion of 1.922 g of CH3OH. Therefore, the conversion factor is:
5 0
2 years ago
Which of the following pairs of substances form a buffer system for human blood?
ss7ja [257]

Answer:

d. Because those chemicals are easily made when CO2 reacts with water, forming H2CO3 (via carbonic anhydrase

3 0
2 years ago
Name the following Type 3 compound
Natasha_Volkova [10]

Answer:

32

Explanation:

5 0
2 years ago
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