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Ratling [72]
2 years ago
6

An electron is a negatively charged subatomic particle. Question 3 options: True False

Chemistry
1 answer:
SpyIntel [72]2 years ago
7 0
I believe it’s True, because Protons are Positively charged and Neutrons are at a balanced charge
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A 28.5 gram piece of iron is added to a graduated cylinder containing 45.5 mL of water. The water in the cylinder rises to the 4
yan [13]

7.91 g/ml is the density of the iron piece of 28.5 gms.

Explanation:

The density of a substance is defined as the volume it occupies.  It tells the matter present in a substance.

The density is mass per unit volume and is denoted by p.

The formula for density is given by:

density (p) = \frac{mass}{volume}

Data given is :

mass= 28.5 grams

V1 = 45.5 ml

V2= 49.1 ml

The initial volume of water was 45.5 ml, when iron piece of 28.5 grams was added the final volume was 49.1 ml.

Putting the values in the equation of density

p = \frac{28.5}{49.1-45.5}

p = 7.91 g/ml

Since iron is a dense material it will occupy less volume

4 0
3 years ago
What statement best explains how life functions a unicellular organism are carried out?​
lbvjy [14]

Answer:

C). The structures in the cell work together to perform its life functions.

Explanation:

Unicellular organisms are characterized as organisms that are able to perform all the life functions through a single-cell. The third statement correctly elaborates how '<u>single-celled organisms carry out these life functions by cooperatively employing the structures lying inside the cell</u>.' The first option is incorrect as it talks about multi-cells which doesn't even exist in unicellular organisms. While the second option is wrong because there are no tissues formed of single-cell. The last option is incorrect as the specialized cells perform different life functions in multi-cellular organisms. Thus, <u>option C</u> is the correct answer.

8 0
2 years ago
Which best describes thermal energy? It is the difference between internal energies of two or more substances. It is the sum of
Anit [1.1K]

Answer:

It is the portion of internal energy that can be transferred from one substance to another.

7 0
2 years ago
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How many hydrogen atoms are needed to form five water molecules
BARSIC [14]
2 Hydrogen Atoms Are Needed To Form Five Water Molecules
8 0
2 years ago
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Which of the following is an example of a consumer?
PIT_PIT [208]

Answer:

D. Rabbit

Explanation:

The rabbit is the consumer because he/she (im not judging) will have to consume other plants or small insects to get his/her (again not judging) energy

5 0
3 years ago
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