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Lostsunrise [7]
2 years ago
8

Which kingdom contains both unicellular and multicellular eukaryotic organisms?

Chemistry
1 answer:
german2 years ago
4 0
The answer is B). Fungi

I’m sorry if this is wrong but I’m pretty sure it’s not
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What is the percent by mass of oxygen fe2o3 (formula mass= 160)?
GarryVolchara [31]
30% should be the percentage of oxygen if the total mass of fe2o3 is 160.
5 0
3 years ago
4. A student was not sure that she accurately recorded the final temperature of her melting point sample. Therefore, she decided
Mumz [18]

Answer:

AWF DSF

Explanation:

W AFSDDDDDDDDD

3 0
2 years ago
Problem page in each of the molecules drawn below one chemical bond is colored red. decide whether this bond is likely to be pol
Slav-nsk [51]

The question is incomplete, here is the complete question:

Problem page in each of the molecules drawn below one chemical bond is colored red. Decide whether this bond is likely to be polar or not. if the bond is likely to be polar, write down the chemical symbol for the atom which will have more negative charge.

The image is attached below.

<u>Answer:</u>

<u>For carbon dioxide molecule:</u> The bond is considered as polar and the elecvtronegative atom is oxygen.

<u>For water molecule:</u> The bond is considered as polar and the elecvtronegative atom is oxygen.

<u>Explanation:</u>

There are two types of covalent bonds:

  • <u>Polar covalent bond:</u> This bond is formed when difference in electronegativity between the atoms is present. When atoms of different elements combine, it results in the formation of polar covalent bond. <u>For Example:</u> CO_2,NO_2 etc..
  • <u>Non-polar covalent bond:</u> This bond is formed when there is no difference in electronegativity between the atoms. When atoms of the same element combine, it results in the formation of non-polar covalent bond. <u>For Example:</u> N_2,O_2 etc..

<u>In carbon dioxide molecule:</u>

The given bond is present between C and O atom.

Electronegativity value of C = 2.5

Electronegativity value of O = 3.5

Electronegativity difference = (3.5 - 2.5) = 1

As, electronegativity difference is present. So, the bond is considered as polar and the elecvtronegative atom is oxygen.

<u>In water molecule:</u>

The given bond is present between H and O atom.

Electronegativity value of H = 2.1

Electronegativity value of O = 3.5

Electronegativity difference = (3.5 - 2.1) = 1.4

As, electronegativity difference is present. So, the bond is considered as polar and the elecvtronegative atom is oxygen.

8 0
3 years ago
6. What happens to the arrangement of water molecules as ice melts?
miv72 [106K]

Answer:

D. Molecules are able to move as they heat up to melt

Explanation:

3 0
3 years ago
The equation of 3times x is 38​
MrMuchimi

Answer is 38/3 or 12.67

3x=38

x=38/3

therefore answer is the one mentioned above

4 0
2 years ago
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