Answer: A compound is a substance in which two or more elements are combined together chemically.
Explanation: Elements present in a compound are always in a fixed proportion and can be separated only by a chemical method. For example, water is a compound composed of hydrogen and oxygen atoms in the ratio of 2:1. The chemical formula of water is H2O.
Answer:
One time I was feeling really scared in my room, but I played a calming song called "Soak up the Sun".
Explanation:
It was played on my Echo dot. I felt better and happier from it.
The change in chemical composition of interstitial fluid affects the oxygen and nutrients transportation to the cell, and also removal of waste from the cell.
Interstitial fluid- Extracellular fluid is mostly made up of blood plasma and interstitial fluid. Interstitial fluid is the substance that fills the spaces between cells. Salts, water, cellular waste products, coenzymes, hormones, carbohydrates, fatty acids, and amino acids make up its composition.
Chemical Composition- The chemical composition of a material refers to the configuration, proportion, and kind of atoms in chemical substance molecules. The chemical makeup will alter when substances interact. For instance, when hydrogen and oxygen combine, water is produced.
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Answer:
B and D
Explanation:
Since it says all carbon atoms have six electrons, we know that they only have six protons too. The carbon 13 and 14 means they have extra neutrons that increases their atomic mass.
