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Irina-Kira [14]

3 years ago

7

Explain why seeing a gas doesn not always indicate that there was a chemical change.

1 answer:

Orlov [11]3 years ago

7 0

A change of state (which is a physical change) can cause gas.

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What are atoms in general

AVprozaik [17]

Atoms are the basic building blocks of ordinary matter. Atoms can join together to form molecules, which in turn form most of the objects around you.

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3 years ago

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How does the smell of food being cooked spread so fast ???

sladkih [1.3K]

Answer:

When we cook food in the kitchen, that's the region of higher concentration of the smell. By diffusion, the smell spreads to the whole room and thereby whole house, so anyone standing at a distance, can smell it.

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3 years ago

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Physostigmine, an alkaloid obtained from a West African plant (Physotigma venenosum),is used in the treatment of glaucoma. Treat

ozzi

Answer:

The structure of the salt is attached.

Explanation:

Physostigmine, an alkaloid obtained from a West African plant (Physotigma venenosum),is used in the treatment of glaucoma. Treatment of physostigmine with methyl iodide gives a quaternary ammonium salt. What is the structure of this salt?

The structure of the salt is attached

8 0

3 years ago

Which of the following is not an example of a molecule A. Mn B. KOH C. O₃ D. H₂S

goldenfox [79]

look at the chemical tables. but i believe it is A

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3 years ago

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Which atoms make up a molecule of sodium bicarbonate.

Ratling [72]

Answer:

Its chemical formula is NaHCO3. Its formula consists of one sodium (Na) atom, one hydrogen (H) atom, one carbon (C) atom and three oxygen (O) atoms.

Explanation:

Hope this helps

8 0

2 years ago