Chose the molecular formula that represents an organic molecule. H 2O
Cu 2O
NH 2
C 6H 12O 6

.

Explanation:

To answer this question you will need to learn about the molecular formula and organic elements.  

So, Molecular Formulas tell you how many atoms of each element are in a compound or the actual whole number ratio; Multiple of Empirical*

Organic Elements - The Organic elements are Protein, Carbohydrates, Lipids, and Nucleic Acids. Lets break down each element. Proteins are made of amino acids. Carbohydrates are made of Carbon, oxygen and hydrogen. Lipids include fats and waxes and Nucleic acids are a long chain of components such as RNA and DNA. Also the other elements are nitrogen, oxygen.

*The Empirical Formula - Tells you the simplest of elements in a                     compound or the simplest whole number; ratio of the elements.

Next, Lets look at some examples of Molecular Formulas v.s The Empirical formula. To solve any problem with these 2, you simply simplify the Molecular formula.

Example 1 -

Empirical:                 Molecular:

See how you can do that? Simplify the molecular and it turns into an empirical.

Now lets dig in to the possible answers -

- Glucose. Glucose is a carbohydrate or sugar. It is one type of sugar. It is important to us and all living beings because cells in a organism uses it as energy. Remember, Glucose is a Carb and a Carb is one of The Organic Elements! so we can put this on the list of possible answers

- Amino radical. Amino radical (aka the aminyl radical), is the neutral form of the amide ion. This means in terms of Positive and Negative, Amino radical is the neutral version of amide ion. Amide Ion is not a Organic Molecule, so it is not a possible answer.

- Copper(I) oxide. (aka cuprous oxide) is a chemical compound. It has copper in its +1 oxidation state and contains oxide ions. Copper(1) oxide is a chemical compound so it is not a possible answer.

- Water. is the symbol for water. Each molecule of water has 2 atoms of hydrogen and a single atom of oxygen. While this may seem a possible answer because water is a natural resource, it isn't a organic molecule.

So, the only possible answer is .

Hope this helped you! I took a really, really long time on this question, i had the same one in school. Please mark me brainliest and Have a great day!

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.