Alpha helix and beta sheets are the secondary structure of protein
Answer:
CHEBI:3312 - calcium dichloride
Explanation:
Calcium chloride is an inorganic compound, a salt with the chemical formula CaCl2.
B. Energy transfer would occur between the copper bars and the surroundings.
Explanation:
In an open system, energy transfer would occur between the copper bars and the surroundings.
There are three types of systems:
- Isolated system in which matter and energy is not exchange with the surrounding.
- Closed system there is no exchange of matter but energy is exchanged with the surrounding.
- Open system: there is exchange of both matter and energy.
If the copper bars were placed in an open system matter and energy will be exchanged with the surrounding.
Learn more:
Isolated system brainly.com/question/7973509
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Molar mass :
H₂O = 18.0 g/mol
O₂ = 32.0 g/mol
<span>2 C</span>₄<span>H</span>₁₀<span> + 13 O</span>₂<span> = 8 CO + 10 H</span>₂<span>O
</span>
13 x 32.0 g O₂ ------------- 10 x 18.0 g H₂O
? g O₂ ------------- 2.46 g H₂O
Mass O₂ = 2.46 x 13 x 32.0 / 10 x 18.0
Mass O₂ =1023.36 / 180
=> 5.68 g of O₂
hope this helps!
Answer:
Explanation:
Because if the equation is truly balanced, the elements on one side equal the element numbers on the other. Take a simple example.
Ba(OH)2 + 2HCl ==> BaCl2 + 2HOH
Now consider what is true.
Element Number of the left Number on the right.
Ba 1 1
O 2 2
H 4 4
Cl 2 2
Nothing has changed going from the left to the right. You may wonder how you get 4 for the hydrogens.
Ba(OH)2 has 2 hydrogens. You multiply the 2 by the hydrogens in the brackets.
2HCl = The 2 in front affects both the hydrogens and the chlorines. There are 2 hydrogens from the HCl
Total: 2 + 2 = 4 hydrogens. The right side is done the same way.
You are not getting different results on the right side than those that you had on the left. Mass is preserved. 1 Ba + 2 Os + 4Hs and 2 Cls on the left, gives the same numbers on the right. There is no loss of mass.
