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joja [24]
2 years ago
12

(True or false) The blood carries hormones to target tissues around the body so the hormones can control the activity of those c

ells
Chemistry
2 answers:
AlladinOne [14]2 years ago
8 0

Answer:

True

Explanation:

wel2 years ago
3 0

Answer:

True

Explanation:

Hormones  are chemical messengers secreted into blood or extracellular fluid by one cell that affect the functioning of other cells. Most hormones circulate in blood, coming into contact with essentially all cells. However, a given hormone usually affects only a limited number of cells, which are called target cells.

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What do the coefficients in the following balanced chemical equation mean?
mafiozo [28]
It's either B or D because there would be 2 coefficients of hydrogen and one of oxygen
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3 years ago
How many molecules are in 2.64 moles of Na2O?
Alex_Xolod [135]
bwhriwnwanhshsiwkwq
7 0
2 years ago
Remember to balance the equations first
Semenov [28]

mol CO₂ = 9.6

mol N₂ = 4.8

mol O₂ = 0.8

mol H₂O = 8

<h3>Further explanation</h3>

Reaction

4C₃H₅O₉N₃ → 12CO₂ + 6N₂ + O₂ + 10H₂O

mol CO₂

\tt \dfrac{12}{4}\times 3.2=9.6

mol N₂

\tt \dfrac{6}{4}\times 3.2=4.8

mol O₂

\tt \dfrac{1}{4}\times 3.2=0.8

mol H₂O

\tt \dfrac{10}{4}\times 3.2=8

8 0
3 years ago
Which statements about peptide bonds are true? The formation of a peptide bond involves a dehydration reaction. Peptides are pol
miv72 [106K]

Answer:

- The formation of a peptide bond involves a dehydration reaction.

- A tripeptide contains three amino acid residues.

Explanation:

Peptide bonds are a type of covalent bonds that form between amino acid molecules. A peptide bond links two amino acids together by removing an hydrogen atom from the amine functional group (-NH2) and an hydroxyl (OH) from carboxylic functional group (-COOH) to release a water molecule. Hence, the formation of a peptide bond involves a dehydration reaction i.e loss of water.

This linking of one amino acid to another via a peptide bond forms a polypeptide and consequently a protein molecule. In other words, proteins are polymers of peptides. However, the linkage of three amino acids is called TRIPEPTIDE

5 0
2 years ago
Describe a device that would allow you to measure the acidity of rain. How would that design work, and what would it look like?
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A rain gauge a (clear) tube or cup with inches marked and set outside when raining and see how much rain there is
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3 years ago
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