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77julia77 [94]
3 years ago
7

The Modern Cell Theory also states that all cells come from -

Chemistry
1 answer:
Kaylis [27]3 years ago
8 0
The answer is A.

The 3 rules of Cell Theory is:

1) Cells are the basic unit of life

2) Cells come from preexisting cells

3) All living things are made up from cells
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Given the balanced equation: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O , what is the total number of moles of O₂ required for the complete combus
timama [110]

Answer: 7.5 Mol O2

Explanation:

1.5 mol C3H8 × 5 mol O2 ÷ 1 mol C3H8 = 7.5 mol O2

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4 years ago
What is the best way to transfer solid chemicals into a beaker?
gulaghasi [49]
Use a scoop or spatula to transfer the chemical
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Who ever does this, get brainiest.
melomori [17]

Answer:

C.

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7 0
3 years ago
What is the third most common gas found in the air we breathe?
erastovalidia [21]
Argon is the third most common gas found in the air we breathe. The air we breathe has approximately 78% nitrogen and 21 % oxygen. The third more abundant gas in the air we breathe is Argon. It is available in a very small quantity in the air that we breathe. The percentage of the gas argon is about 0.9% in the air that we breathe. There are several other gases also present in the air that we breathe, but they are found mostly in negligible amounts.



7 0
3 years ago
Read 2 more answers
Sarah is writing a paper explaining protein formation. Choose the correct way to complete each sentence.
Amanda [17]

Answer :

Amino acids join by forming (1) peptide bonds.  Water is released.

The chains of amino acids vary according to their (2) side chains, which each have differing makeup.  

These chains determine the protein’s structure and they fold to create a unique (3) third-dimensional shape.

Explanation :

Amino acid : The amino acids are the building blocks of protein. Amino acids are the compound which consist both amine (-NH_2) and carboxylic (-COOH) groups along with the side chains. In the protein, many amino acids are linked by the peptide bonds.

Th peptide bonds are formed by the combining of amino group of one amino acid to the carboxylic group of another amino acid by releasing of water.

Some examples of amino acids are glycine, lysine, alanine, etc.

Peptide bond formation image is shown below.

In the image 'R' can be contained by different groups like hydrogen, methyl, phenyl, etc

8 0
3 years ago
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