Write the balanced COMPLETE ionic equation for the reaction when aqueous NiCl2 and aqueous Na2S are mixed in solution to form solid NiS and aqueous NaCl.

Q: A 106.2 mL sample of 0.100 M methylamine ( CH3NH2; Kb = 3.7 x 10-4) is titrated with 0.235 M HNO3.…

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Q: Please answer the rest. they are very short answers. Thank you so much. final answ is enough. need…

A: Cis-trans isomers are alkenes with same chemical formula but different arrangement of atoms around…

Q: The instructor reveals that the weak acid is hypochlorous acid, HOCl. The known Ka for HOCl is…

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Q: pH = 8.03 Express your answer using two significant figures. [H3O+]= Submit Part D [H3O+]= VE ΑΣΦ pH…

A: The question is based on the concept of pH of the solution.  it is defined as a negative logarithm…

Q: Identify whether the following are examples of systematic or random error or are mistakes: a. Using…

A: The random error causes one measurement to differ slightly from the next. It comes from…

Q: Today in grassfield chemistry class we are testing how far we can launch pumpkin seeds with chemical…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: Methods of Analysis Test #1: Polarity, or Effect of a charged rod on a stream of liquid: This test…

A: Given substances are: acetone, hydrogen monoxide, ethylene glycol, n-butanol, hexane, and toluene.…

Q: [OH-]=3.9 x 10-6 M Express your answer using two decimal places. ? pH = %3D Submit Request Answer

A: Given  [ OH- ]   =   3.9 × 10-6 M       PH   =   ?

Q: The distance between the centers of two oxygen atoms in an oxygen molecule is cm. What is this…

A: A question based on units of measurement. The interatomic distance of Oxygen molecule is given in…

Q: 1.72. Calculate the average grade using equation 1.32 if the scores on a 10-point quiz are 5, 5, 5,…

A: Since, Average of the given sample or data is calculated as sum of all the data divided by the…

Q: Read sections 3-9, and 3-10 in Christian, 6h Ed. Use this information to answer the following…

A: In a measurement, uncertainty represents the incorrectness or error of measurement. Thie uncertainty…

Q: Part C [OH-]=5.4 x 10-4 M Express your answer using two decimal places. pH = Submit Part D 15. ΑΣΦ…

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Q: Determine the pH of each solutions.

A: To calculate the pH use equilibrium constant.

Q: why is the answer 1.13 M?

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Q: N₂(g) + 3H₂(g) — 2NH3(g)

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Q: 1-25. The Reaumur temperature scale, while now obscure, was once in common use in some parts of the…

A: Given the temperature in Reaumur scale is - 20 or  We have to convert - 20 or into degree…

Q: Where did you get 0.693?

A: In the given question, we need to tell how 0.693 comes in the formula of relation between rate…

Q: Determine the sum. (9.208 × 10-6) + (2.080 × 10–³) =

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Q: solve the problem using SF and PsN. Need help understanding help please

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Q: Consider the following sets of replicate measurements: (1) Calculate the mean and standard…

A: Given that, the values of group A are 9.5, 8.5, 9.1, 9.3, and 9.5. So, the number of values is n =…

Q: Use the exponent (EE) functionality on your calculator to do these calculations (a & c should be…

A: Significant figures of the answer will be two significant figures as the questions have .

Q: How did you get 0.0000264

A: During calculation unit conversion is very important. We have to make the unit of a physical…

Q: The density of a metal will vary depending on the size of the sample. Group of answer choices True…

A: False,  The density does not change with variation in size of metal. This is because with decrease…

Q: Part A Be ion Express your answer as a signed integer in the form 3+. Request Answer Previous…

A: Beryllium is a second group element.  Atomic number of beryllium is 4.  It loses two electrons and…

Q: The plot below from your book does NOT have data for ammonia. 1.0 72.00 7-1.50 0.8 71.20 0.6 z.…

A: According to the law of corresponding states, At same reduced temperature and reduced pressure, all…

Q: Suppose that in a random selection of 100 colored candies, 25% of them are blue. The candy company…

A: Number of colored candies = 100 Percent of blue candies = 25 % Company claims that the percentage of…

Q: I don't know how you got the answer, can you plz do the math step by step.

A: Recall the given reaction,                    CH3CO  →  CH3  +  COActivation energy for the…

Q: 1. Name the following compounds. Where necessary use E/Z notation. OH IN.

A: The naming off organic compounds can be done with help of rules of international union of pure and…

Q: milk of magnesia with [H3O+] = 2.0 × 10-M X Express your answer using two significant figures.

A: Given data : [H3O+] = 2.0 × 10-9 M

Q: See the following table of concentration, green intensity, blank. Based on these data, convert…

A: Using Excel:Let me know if you have additional queries. Happy learning!

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.