he formula for citric acid, found in lemon juice, is CH2COOH

Question

. For each symbol, identify the element and the number of atoms present by dragging the tiles into the appropriate columns of the table.

carbon
hydrogen
oxygen
1
2
3
7

Answer 1

To identify the elements and the number of atoms present in citric acid (CH₂COOH), let's break down its formula:

• C (carbon) appears 3 times in total (there are 3 carbon atoms in the structure).
• H (hydrogen) appears 5 times in total (2 from CH₂ and 1 from COOH).
• O (oxygen) appears 4 times in total (there are 4 oxygen atoms in the structure).

So the counts for each element in citric acid are as follows:

• Carbon (C): 3
• Hydrogen (H): 6
• Oxygen (O): 4

Now, organizing the information:

Elements and Counts

| Element | Number of Atoms | |-----------|-----------------| | Carbon | 3 | | Hydrogen | 6 | | Oxygen | 4 |

You can now drag the corresponding numbers (3 for carbon, 6 for hydrogen, and 4 for oxygen) into the appropriate columns in the table.