# write a balanced equation for Science Assignment Help

write a balanced equation for Science Assignment Help. write a balanced equation for Science Assignment Help.

What is a simple way to explain how to write a balanced equation for

ZnCO3  and Fe2S3  I know this is the answer but not sure how to get it.

ZnCO3(s) Zn2+(aq) + CO32-(aq)

Fe2S3(s) Fe3+(aq) + 3S2-(aq)

write a balanced equation for Science Assignment Help[supanova_question]

## aq solution buffer system Science Assignment Help

Which of the following aqueous solutions are good buffer systems?
.
0.26 ammonium bromide 0.34 ammonia
0.26 nitric acid 0.17 potassium nitrate
0.19 potassium hydroxide 0.20 potassium bromide
0.34 hypochlorous acid 0.26 sodium hypochlorite
0.14 acetic acid 0.20 sodium acetate

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## aqueous solutions buffer systems Science Assignment Help

Which of the following aqueous solutions are good buffer systems?

.
0.14 hydrocyanic acid 0.17 potassium  cyanide
0.14 barium hydroxide 0.22 barium  chloride
0.34 potassium bromide 0.26 potassium perchlorate
0.30 ammonia 0.31 ammonium  nitrate
0.21 perchloric acid 0.19 potassium  perchlorate

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## buffer solution of a ph solution Science Assignment Help

A buffer solution is 0.305 M in KH2PO4 and 0.374 M in K2HPO4. If Ka for H2PO4 is 6.2×10-8, what is the pH of this buffer solution?

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## buffer solution ph of a slolution Science Assignment Help

A buffer solution is 0.344 M in HNO2 and 0.302 M in KNO2. If Ka for HNO2 is 4.5×10-4, what is the pH of this buffer solution?

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## Assignment on Ethics and Middles Ages Humanities Assignment Help

Upon reading the “Ten Commandments of the Code of Chivalry”, the “Sumurai’s Creed” and the “Laws of Genghis Kahn,” answer the following.  Write in complete sentences/paragraphs.

1.  What do these codes of conduct have in common?
2.  How are they different?
3.  How are they similar to our modern systems of law?
4.  How do they differ from our modern systems of law?
5.  Finally, how do they specifically reflect the definition of Honor from the handout.

Assignment on Ethics and Middles Ages Humanities Assignment Help[supanova_question]

## to water produces a buffer solutio Science Assignment Help

14) The addition of hydrochloric acid and __________ to water produces a buffer solution.

A) HC6H5O

B) NaOH

C) NH3

D) HNO3

E) NaNO3

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## ​In the reaction Ti+2Cl2=TiCl4 what is the limiting reaction if 7.3 moles of Ti Science Assignment Help

In
the reaction Ti+2Cl2=TiCl4 what is the limiting reaction if 7.3 moles of Ti is reacted with 14moles of Cl2?

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## needs assistance in english Humanities Assignment Help

In the word “typographical,” the emphasis is placed on which syllable?

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## database question (sql) Engineering Assignment Help

Write the following queries in relational algebra, domain relational calculus and SQL. No duplicates should be printed in the results. If some queries cannot be expressed in relational algebra or calculus, explain the reason.

1. Find the names of all drivers that scored a podium finish (i.e. finished at least 3rd).

2. Find the name of the oldest driver who either won a race or tested for team ‘Alpha’

Find the names of all the teams that either won a race or tested at least 5 different drivers.

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write a balanced equation for Science Assignment Help

write a balanced equation for Science Assignment Help 