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Snowcat [4.5K]
3 years ago
5

A part of your throat that acts like a gateway sending air into the lungs and food down into the stomach

Chemistry
1 answer:
Irina-Kira [14]3 years ago
4 0
The pharynx is the answer
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What mass of sucrose, C12H22011, is needed to make 500.0 mL of a 0.200M<br> solution?
NeX [460]

Answer:

34.23 g

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

7 0
3 years ago
Which one of the following exhibits dipole-dipole attraction between molecules? Group of answer choices SF6 HCl O2 CF4 C10H22
Cerrena [4.2K]

Answer:

The correct answer is HCl

Explanation:

There is a dipole-dipole force in hydrochloric acid (HCl), this type of attraction occurs in polar covalent molecules. In this case, the positive end of the molecule (H) attracts the negative (Cl).

6 0
3 years ago
A supersaturated solution can be prepared by dissolving solute in solvent while adding ______. A supersaturated solution contain
Delicious77 [7]

Answer:

Heat, solutes and high temperature.

Explanation:

A supersaturated solution can be formed by dissolving solute more solute in solvent by increasing temperature of the solution. A supersaturated solution contains more quantity of solutes than can be dissolved in the solvent at room temperature. A solution may remain supersaturated until the solution has high temperature and when the temperature started lower, the extra dissolve solutes begin undissolved and remain suspended in the solution.

4 0
3 years ago
A common demonstration in chemistry courses involves adding a tiny speck of manganese(IV) oxide to a concentrated hydrogen perox
Nuetrik [128]

Answer:

2H_{2}O_{2} ---> 2H_{2}O + O_{2}

2,2,1 being the coefficients

Explanation:

These type of question rely on the person answering the question knowing the formula of hydrogen peroxide. Hydrogen peroxide has a formula that is very similar to that of water except it has a two after the O, which makes it very easy to remember.

6 0
3 years ago
The volume of a 76.52 g sample of methane gas is 32.7 L at 26.9 °C and 4.45 atm. What will its volume be at 95.4 °C and 1.7 atm?
harkovskaia [24]

Answer:

The volume of a 76.52 g sample of methane gas is

32.7 L at 26.9 °C and 4.45 atm. What will its volume be at 95.4 °C and 1.7 atm?

5 0
3 years ago
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