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Yanka [14]
3 years ago
14

What are the first and last terms of the following series ?

Chemistry
1 answer:
TEA [102]3 years ago
8 0

Answer:

B

Explanation:

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Please help. thanks :)
sleet_krkn [62]

The correct answer would be equation 4, because there are 4 Hydrogens and 2 Oxygens on each side of the equation making it balanced.

6 0
3 years ago
Read 2 more answers
Some thermodynamic properties of ethanol are listed in the table. Thermodynamic Properties Property Value c (solid) 0.5 J/g °C c
alexira [117]
<h2>Answer </h2>

Option C - 320J

<u>Explanation </u>

Since ethanol solid at −120 °C and is only cooling down (it won’t change states) . The amount of Thermodynamic properties values c is given in form of solid, liquid and gas. Amount of energy released is calculated below.  

Formula,

= change in temperature  x specific heat capacity for solid ethanol x 40

=> 0.5 x 16x 40 = 320J

Therefore, the 320J of heat is released when 40.0g of ethanol cools.

4 0
3 years ago
Which level of protein structure do beta-pleated sheets and alpha helices represent?
pychu [463]
The primary structure is the amino acids' unique sequence. The polypeptide's local folding to form structures such as the α-helix and β-pleated sheet constitutes the secondary structure. The overall three-dimensional structure is the tertiary structure
3 0
3 years ago
A solution of sodium iodide is added to a solution of potassium nitrate to make a potassium iodide precipitate and a sodium nitr
stich3 [128]

Answer:

NaNO3

Explanation:

Sorry If its incorrect

4 0
3 years ago
9. Matter is anything that
balu736 [363]
A.has mass and takes up space
5 0
3 years ago
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