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Mamont248 [21]
4 years ago
9

Please help!!!!!!!

Chemistry
1 answer:
mamaluj [8]4 years ago
7 0

Answer:

The items are matched below -

Explanation:

1. Vocal cords - mucous folds in voice box

2. Sinus - smaller cavity above or near nasal cavity

3. Alveoli - air sacs

4. Bronchus - branch of the windpipe

5. Mucus - thick, sticky substance

6. Trachea - windpipe

7. Thorax - chest area

8. Septum - cartilage dividing nose in two parts

All of the above are parts of human respiratory system.

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What is the longitude of the international date line
sveta [45]

Answer:

The International Date Line passes through the mid-Pacific Ocean and roughly follows a 180 degrees longitude north-south 

line on the Earth. It is located halfway round the world from the prime meridian—the zero degrees longitude established in Greenwich

8 0
3 years ago
Melted candle wax has no fixed shape, but it does have a fixed volume. So, melted candle wax is a
dlinn [17]
It is a liquid because when you have a liquid, there is no definite shape. Therefore, this would be the answer because it takes the shape of its container. 

Final answer: a. Liquid 
7 0
4 years ago
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In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide: HNCO(l)→C3N3(NH2)3(l)+CO2(g) Bal
kykrilka [37]

Answer:

The coefficients are 6, 1, 3

Explanation:

HNCO →C3N3(NH2)3 + CO2

From the above equation, there are a total of 6 atoms of nitrogen on the right side and 1atom on the left. It can be balance by putting 6 in front of HNCO as shown below:

6HNCO → C3N3(NH2)3 + CO2

Now there are 6 atoms of carbon on the left side and 4 atoms on the right side. It can be balance by putting 3 in front of CO2 as shown below:

6HNCO → C3N3(NH2)3 + 3CO2

Now the equation is balanced as the numbers of atoms of the different elements on both sides of the equation are the same.

The coefficients are 6, 1, 3

8 0
3 years ago
Are C-12, C-13, and C-14 all carbon isotopes?
kramer

Answer:

Yes, they are isotopes.

Explanation:

Isotopes are atoms with the same atomic number Z and a different mass number (A). That is, they differ in the number of neutrons (eg carbon 12, has 6 protons, 6 electrons, and 6 neutrons, carbon 13, 7 neutrons, and carbon 14 8 neutrons).

3 0
3 years ago
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Please help! It’s due today. I’ll give brainliest
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Answer:

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Explanation:

5 0
3 years ago
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