Answer:
Look below
Explanation:
The formula for density is:
Therefore in order to find the density of a solid, you must find the mass and the volume first.
To find the mass, you can use a scale.
To find the volume, you can use the water displacement method. For example, if you fill the water of a graduated cylinder to 10 mL, and then you put a rock inside, and it rises to 15 mL, then the volume (of the rock) is 15mL-10mL=5mL.
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An ideal gas is cooled at constant pressure, option A. A. ΔH is less than (more negative) Δ E of the system.
∆H is the exchange in enthalpy from reactants to products A ΔHº charge represents an addition of electricity from the reaction and from the surroundings, resulting in an endothermic response. A horrible cost for ΔHº represents the removal of power from the reaction and into the surroundings and so the reaction is exothermic.
The enthalpy of a system can not be measured right away because of the fact the inner energy consists of additives that are unknown, now not effects available, or aren't of interest in thermodynamics.
Hence, the answer is option A.
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Disclaimer:- your question is incomplete, please see below for the complete question.
A solid yields a mixture of gases in an exothermic reaction that takes place in a container of variable volume.
A. ΔH is less than (more negative) Δ E of the system.
B. ΔH is greater than ΔE of the system.
C. ΔH is equal to ΔE of the system.
D. can't be determined without more information
Answer:
Amino Acids Are Linked by Peptide Bonds to Form Polypeptide Chains. Proteins are linear polymers formed by linking the α-carboxyl group of one amino acid to the α-amino group of another amino acid with a peptide bond (also called an amide bond).
To form polypeptides and proteins, amino acids are joined together by peptide bonds, in which the amino or NH2 of one amino acid bonds to the carboxyl (acid) or COOH group of another amino acid.
Answer:
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