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dmitriy555 [2]
3 years ago
11

2. Which statement is TRUE for a chemical change?

Biology
2 answers:
Dahasolnce [82]3 years ago
5 0
The answer is C because when a chemical change happens you can’t get the product back.
Iteru [2.4K]3 years ago
5 0
Chemical change is something that’s cannot be reverse and to know if it’s is chemical sometime know if they are burn/ rust and physical change is always the state of phase like melting to water is a physical
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What effect does increasing the temperature have on a solvent?
Oksana_A [137]

Answer:

The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules.

Explanation:

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4 years ago
Someone please help me!!
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Answer: protein > neurons > cardiac muscle > bladder > digestive system > human being

Explanation:

protein molecule, neurons individual cells, muscle tissue, bladder organ, digestive system interconnected organs, human being whole body

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3 years ago
When dissecting you should cut away from yourself?
sineoko [7]

Answer;

-The above statement is true

-It is a precaution during dissecting.

Explanation;

Among the precautions  while dissecting include;

-When cutting into or dissecting the specimen, it is important to always cut away from yourself and others. To avoid cutting anyone, especially with formaldehyde being used. .

-You should also should not hold the animals while cutting because you could again, cut yourself.  Another precaution that should be obvious is Do not eat any part of the specimen.

6 0
4 years ago
ANSWER ASAP: In a population of 250 foxes, 18 die on a particular day and 32 were born on that day.
otez555 [7]

Answer:

A. 72

B. 128

C. 56

Explanation:

It is times 1000

So you take births or deaths / population * 1000

And for the end you do 128 -72

4 0
3 years ago
When observing an ECG, you will see many different deflections from baseline known as waves. These deflections represent various
mote1985 [20]

Answer:

1. Ventricular depolarization −−QRS complex

2. Total time it takes for the ventricular muscle to depolarize and repolarize −−QT interval

3. Atrial depolarization −−P wave

4. Conduction through the atrioventricular (AV) node −−PR segment

5. Ventricular repolarization −−T wave

6. The ventricles are in their depolarized state −−ST segment

7. Conduction through the atrioventricular (AV) bundle −−Q wave

Explanation:

ECG or electrocardiogram is the graphical representation of the heart's rhythm and electrical activity measured by electrical signals. The contraction of the heart shows electrical activity.

There are various deflections shows from baseline and known as specific waves and there are also some flat lines between waves called intervals. This atrial depolarization is called P wave and ventricular repolarization called T wave and the time between ventricular muscles depolarization ( QRS complex) and repolarization is QT interval. Conduction through the atrioventricular (AV) bundle is known as Q wave.

3 0
3 years ago
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