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kakasveta [241]
4 years ago
8

Which is true about the symbols assigned to the elements?

Chemistry
1 answer:
igomit [66]4 years ago
4 0

Answer: Option (C) is the correct answer.

Explanation:

Periodic table has different symbols for individual elements which have been discovered till now. As a result, this periodic table is followed internationally as it is approved and doesn't have any flaws.

Thus, we can conclude that out of the given options, they are all recognized internationally is true about the symbols assigned to the elements.

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9. During an experiment the students prepared three mixtures A)Starch in water B) Sodium chloride solution C) Tincture of Iodine
il63 [147K]

Answer:

See explanation

Explanation:

Tyndall effect refers to the scattering of light in a solution. Tyndall effect occurs when the size of particles in the solution exceeds 1 nm in diameter. Such solutions are actually called false solutions.

In tincture of iodine, the size of particles in solution is less than 1 nm in diameter hence the solution does not exhibit Tyndall effect. Hence, tincture of iodine is a true solution.

Therefore, if the size of particles in solution exceeded 1nm in diameter, Tyndall effect is observed.

7 0
3 years ago
What is the specific heat of copper when heated to 221.32
Dafna1 [17]

Answer:

The specific heat of copper when heated to 221.32 (not listed form of heat measurement) is 221.32 (not listed form of heat measurement).

Explanation:

uh not really sure what else there is here, I may be missing something

5 0
3 years ago
How many molecules are there in 79g of Fe2O3? how many atoms is this?
Leya [2.2K]
There are approximately 160 grams in 1 mol of Fe2O3 molecules. Therefore, there would be 79/160= 0.49375 mols of Fe2O3 molecules in 79 grams. There are 5 atoms in total for each molecule of Fe2O3, therefore 79/160 * 5 = 79/32 = 2.46875 mols of atoms.
4 0
3 years ago
PLEASE HELP ASAP
V125BC [204]

Answer:

third one

Explanation:

5 0
3 years ago
PLS HELP ASAP! I WILL GIVE BRAINLIEST!! Which of the following explains the conservation of mass during cellular respiration? (4
Alex17521 [72]

Answer:

jayfeather friend me    ccccccc

Explanation:

is: cellular respiration creates an energy molecule when glucose is broken down.

Conservation of mass (mass is never lost or gained in chemical reactions), during chemical reaction no particles are created or destroyed, the atoms are simply rearranged from the reactants to the products.

4 0
3 years ago
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