Can someone please help me?

Chemistry- "write the products expected from each acid-base reaction shown below........

Dahasolnce [82]

1.) NaOH + HCl → NaCl + H₂O

2.) Ca(OH)₂ + H₂SO4 → CaSO₄ + 2H₂O

3.) 2HCl +Ba (OH)2 → BaCl₂ + 2H₂O

4.) HNO3 + LiOH → LiNO₃ + H₂O

5.) H₂CO₃ + NaOH → Na₂CO₃ + H₂O

6.) KOH + HC₂H₃O₂ → KC₂H₃O₂ + H₂O

7.) Ba(OH)2 + HNO2 → Ba(NO₂)₂ + H₂O

8.) H₂SO₃ + 2NaOH → Na₂SO₃ + 2H₂O

9.) H₃PO₄ + 3KOH → K₃PO₄ + 3H₂O

10.) 2HBr + Ca(OH)2 → CaBr₂ + 2H₂O

The reason why water is so recurrent is because of the general form that says: ACID + BASE → SALT + WATER

I took the liberty of balancing the equations.

8 0

4 years ago

In what area of the titration curve for phosphoric acid (h3po4) is the molecule fully deprotonated?

Arada [10]

The titration curve should have flat regions centered around each of the

three halfway points (buffer zones) and sharp increases in pH around the

equivalence points.

Initial pH

This is determined by the most acidic of the Ka values and the initial

concentration of the acid. (Same as a monoprotic acid)

Half-way points

At each halfway point, the pH = pKa of the group you are titrating. At this point in

the titration curve, we are in a buffering region, and the curve will be relatively

flat.

Equivalence points

At each equivalence point, the pH is the average of the pKa values above and

below. At the last equivalence point (the endpoint), the pH is determined by the

Kb of the conjugate base of the weakest acid.

Plotting the titration of 100 mL of 0.10 M phosphoric acid with 1.0 M NaOH.

H3PO4 + H2O  H2PO4

-

+ H3O+

Ka1 = 7.5 x 10-3

H2PO4

-

+ H2O  HPO4

2- + H3O+

Ka2 = 6.2 x 10-8

HPO4

2- + H2O  PO4

3- + H3O+

Ka3 = 4.2 x 10-13

Plot these points and connect them to determine the titration curve of phosphoric acid. The curve should be relatively flat around each of the halfway points when we are in a buffering region.

The titration curve should have flat regions centered around each of the

three halfway points (buffer zones) and sharp increases in pH around the

equivalence points.

For more information on the titration curve click on the link below:

brainly.com/question/3130161

#SPJ4

4 0

2 years ago

Uncrewed vehicles launched into space to collect data are called what?

ozzi

B. Rovers are what you are looking for

6 0

3 years ago

An essential utensil for various tasks from cleaning vegatables to training pasta ir tin contents

zavuch27 [327]

Correct question: A tool used for vegetable strainer,it is essential for various tasks from cleaning vegetables to straining pasta or tin contents.

Answer: The tool is called COLANDER.

Explanation:

In the kitchen, there are different types of equipments and utensils which makes work easier and faster. Examples of such equipment/ utensils includes:

--> graters,

--> cutleries ( spoon, fork, knife)

--> colanders

--> Pots

--> Blenders

These utensils are made up of rubber, plastics, wood, ceramics and stainless steel.

A Colander is an important kitchen utensil, a type of strainer with perforated holes. The holes allows fluid to drain leaving behind the solid part. It is usually bowl - shaped. It helps in performing the following roles in the kitchen:

--> cleaning vegetables

--> straining of pasta

--> straining of tin contents

Colanders are usually made of stainless steel, plastics and ceramics.

4 0

3 years ago

Write a complete, balanced equation for the following reactions:

Sergeu [11.5K]

Answer:

Solution given:

e) The heating of sodium carbonate to produces sodium oxide and carbon dioxide

Solution given:

Balanced chemical equation:

$\boxed{\bold{\green{Na_{2}CO_{2} +heat \rightarrow Na_{2}O +CO_{2}}}}$

when sodium carbonate is heated it decomposed and form sodium oxide and carbon dioxide

f) chromium (III) hydroxide plus sulfuric acid

Balanced chemical equation:

$\boxed{\bold{\green{2Cr(OH)_{3}+ 3H_{2}SO_{4} → Cr_{2}(SO_{4})_{3} + 6H_{2}O}}}$

When chromium (III) hydroxide react with sulfuric acid double displacement takes place and forms produce chromium(III) sulfate and water.

g) aluminum metal plus chlorine gas

$\boxed{\bold{\green{2Al(s) + 3Cl_2(g) \rightarrow 2AlCl_2 }}}$

When aluminum metal is added to chlorine gas Combination reaction takes place and forms aluminum chloride.

8 0

3 years ago

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