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GaryK [48]
3 years ago
12

Hey everyone I’m new here so so can you give me some tips about Brainly?

Chemistry
2 answers:
BlackZzzverrR [31]3 years ago
4 0

Answer:you just post a question and chose how many points fr the question which makes people want to answer it faster if you answer questions then you get points to be able to post questions

Explanation:i am not new to brainly

kvv77 [185]3 years ago
3 0

Answer:

Sure! Welcome to Brainly! You can earn points by answering question or giving people brainliest. In order to lose points you need to ask a question. They also have a tutoring feature where you can get live tutoring by someone. And you can also scan questions! That's about it, bye!

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Calculate δs∘rxn for the reaction2no(g) o2(g)→2no2(g)express your answer to one decimal place and include the appropriate units
Anna35 [415]

The δs∘rxn  for the reaction 2NO(g) + O_{2} → 2NO_{2} (g) will be -146 J/K.

Entropy would be a measurable physical characteristic and a scientific notion that is frequently connected to a condition of disorder, unpredictability, or uncertainty.

Entropy would be a measurement of the system's unpredictability or disorder. The entropy increases as randomness do. It has broad properties as well as a state function. It has the unit JK^{-1} mol^{-1}.

Entropy of the reaction can be calculated by the reaction.

ΔS^{0} rxn = 2 mol × S^{0} (NO_{2} (g) - 2 mol × S^{0} NO (g) - 1 mol × S^{0} (O_{2} )

ΔS^{0} rxn  = 2 mol × 240 J/mol.K - 2 mol × 210 J/mol.K-1 mol  ×205.2 J/mol.K

ΔS^{0} rxn  = -146.8 J/K

Therefore, the δs∘rxn  for the reaction 2NO(g) + O_{2} → 2NO_{2} (g) will be -146 J/K.

To know more about reaction

brainly.com/question/20305735

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1 year ago
CaC12 * 3H20 is correctly named
ki77a [65]

Answer:

calcium chloride deihydrate

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3 years ago
List the ions in solution in the electrolysis of conc.sodium chloride<br>​
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Chloride ions Cl –(aq) (from the dissolved sodium chloride) are discharged at the positive electrode as chlorine gas, Cl 2(g) sodium ions Na +(aq) (from the dissolved sodium chloride) and hydroxide ions OH –(aq) (from the water) stay behind - they form sodium hydroxide solution, NaOH(aq)
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4. In the following, how many digits should be in the solution to have the proper number of sig figs?
yan [13]

Answer:

i guess b maybe the answer

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I have these answered, but I'd like someone to check them for me? Plz and thanks :)
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1. The third option is the least soluble in water because it is the chain with the most number of hydrocarbons. Next is the second option while the first one is the most soluble.
2. Statements 1 and 2 are true. The third option is not true all the time because it depends on the structure of the compound.
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4 years ago
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