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navik [9.2K]
3 years ago
5

Asap! first to answer correctly gets 10 pts plus brainliest! :)

Chemistry
1 answer:
olga_2 [115]3 years ago
6 0

Answer:

c

Explanation:

c first quarter waxing half moon

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Help ASAP!
ipn [44]

I believe the answer is D

5 0
3 years ago
How many grams of carbonic acid were produced by the 3.00g sample of NaHCO3
Alexxx [7]
I dont know what subject is this
8 0
3 years ago
Based on the solubility observations, which of the following pairs of cations could be distinguished by the addition of sodium c
Licemer1 [7]

Based on the solubility observations, barium & aluminum could be distinguished by the addition of sodium chloride to the solutions.

<h3>What happens when NaCl is added to a solution?</h3>
  • The ionic link that held sodium and chloride ions together is broken when water molecules force the ions apart.
  • The sodium and chloride atoms are encircled by water molecules after the salt compounds are separated. After that, the salt dissolves and forms a homogenous solution.
  • In order to keep patients from dehydrating, sodium chloride, an important nutrient, is employed in healthcare. It is employed as a spice to improve flavor and as a food preservative. Additionally, sodium chloride is employed in the production of polymers and other goods. Additionally, it is used to de-ice sidewalks and roadways.
  • Adding water to sodium chloride results in a physical change because no new product is created.

Learn more about sodium chloride added to a solution refer to :

brainly.com/question/28092739

#SPJ4

7 0
1 year ago
PLEASE ANSWER
Vikki [24]
D) refracted
because , the light changes direction.. causing the penny to look bigger than it is.
4 0
3 years ago
Best answer and explanation will get marked brainiest
Darina [25.2K]

The number 345,000 has 3 significant figures because the trailing zeros are not significant since there's no decimal point.

<h3>What is significant figures?</h3>

Significant figures of a number in positional notation are digits in the number that are reliable and necessary to indicate the quantity of something.

Also significant figures can be defined as, the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value.

Examples of significant figures;

  • 405 = 3 significant figures
  • 405000 = 3 significant
  • 0.040500 = 5 significant figures

<u>Note:</u> leading zeros are not significant but trailing zeros, which are zeros at the end of a number, are significant only if the number has a decimal point.

345,000 = 3.45 x 10⁵ (3 significant figures)

Thus, the number 345,000 has 3 significant figures because the trailing zeros are not significant since there's no decimal point.

Learn more about significant figures here: brainly.com/question/24491627

#SPJ1

4 0
2 years ago
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