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Dmitry [639]
4 years ago
6

For a science experiment. John gradually added a sedium hydroxide (NaOH) solution to warm vegetable oil in a glass test tube. He

Biology
1 answer:
Marrrta [24]4 years ago
6 0

The sodium hydroxide solution and vegetable oil underwent a chemical change.

<h3><u>Explanation:</u></h3>

The reaction between a base and a fat or fatty acid is called as saponification reaction. Here the base dissociates into the cation and hydroxyl ion. The hydrogen from the fatty acid of the oil reacts with the hydroxyl ion to form water which is basically the neutralization reaction. This cation now reacts with the rest of the fatty acid to form a bipolar molecule which is the soap. During the reaction, the solution becomes cloudy but with time, it again goes back to solution. The cloudyness appears because oil isn't soluble in water based solutions and the base is actually made solution in water.

Here the sodium hydroxide reacts with oil to form water and the soap molecule which is a chemical change.

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What information is known when you complete a Punnett square for two parents?
Neko [114]

Answer: A Punnett square is a chart that allows you to determine the expected percentages of different genotypes in the offspring of two parents. A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes

Explanation:

6 0
3 years ago
3 POINTS HURRY! What is the relationship between biotechnology, sharkskin, and disease resistance?
tiny-mole [99]

Answer:

The correct option is D: Sharkskin produces many chemicals that can be collected and used to create antibiotics.

Explanation:

Sharkskin can resist bacteria and other types of germs due to the microscopic pattern of ridges it has on its surface. This is especially useful in case of bacteria that have developed an antibiotic resistance. There are biotechnology companies that are developing a product with a texture like that of a sharkskin, so as to have the same properties of microbial resistance.

Hope that answers the question, have a great day!

7 0
4 years ago
Which hypothalamic hormone would the nurse identify as helping treat postpartum uterine atony and hemorrhage?
klio [65]

The hypothalamic hormone that the nurse would identify as helping treat postpartum uterine atony and hemorrhage is oxytocin.

<h3>What is oxytocin?</h3>

Oxytocin is a neuropeptide that is produced in the hypothalamus and is responsible for modulating the central nervous system for patterns of sexual behavior and that is secreted after distension of the uterine cervix during childbirth.

When released into the blood, it travels a path to where its receptors are to generate its functions such as the contraction of the muscle of the uterus during delivery, being responsible for the contractions. It will also generate the milk ejection reflex in the breasts, helping during lactation.

Therefore, we can confirm that the hypothalamic hormone that the nurse would identify as helping treat postpartum uterine atony and hemorrhage is oxytocin.

To learn more about oxytocin visit: brainly.com/question/1996049

#SPJ1

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What structures make the heart an efficient pump?
NNADVOKAT [17]
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3 years ago
When the atoms involved in a covalent bond have the same electronegativity what type of bond results
slavikrds [6]
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