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3 years ago

What products would you expect from a reaction between hcl and koh?

1 answer:

8 0

HCl is a strong acid and KOH is a strong base. HCl dissociates to form H⁺ ions and Cl⁻ ions and KOH dissociates to give out K⁺ and OH⁻ ions.
When H⁺ and OH⁻ ions react they form H₂O molecules which are neutral.K⁺ ions and Cl⁻ ions form KCl salts.
the balanced equation for the reaction is as follows
HCl + KOH ----> KCl + H₂O
products are therefore KCl and H₂O

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Simple distillation is best used to separate two liquids that have boiling points that differ by

emmasim [6.3K]

The boiling points need to differ by 50 degrees to enable their complete separation ie of two different liquids. The separation occurs by first evaporation of one of the liquids and then its condensation and collection. It is a physical process not a chemical one.

6 0

3 years ago

What must happen for heat to be transferred by thermal conduction?

zaharov [31]

Answer:

yh what he said

Explanation:

5 0

3 years ago

Read 2 more answers

A sample of TNT, C7H5N3O6 , has 8.94 × 1021 nitrogen atoms. How many hydrogen atoms are there in this sample of TNT?

Bess [88]

Answer:

1.49×10²² atoms of H are contained in the sample

Explanation:

TNT → C₇H₅N₃O₆

1 mol of this has 7 moles of C, 5 moles of H, 3 moles of N and 6 moles of O

Let's determine the mass of TNT.

Molar mass is = 227 g/mol

As 1 mol has (6.02×10²³) NA atoms, how many moles are 8.94×10²¹ atoms.

8.94×10²¹ atoms / NA = 0.0148 moles

So this would be the rule of three to determine the mass of TNT

3 moles of N are in 227 g of compound

0.0148 moles of N are contained in (0.0148 .227) / 3 = 1.12 g

Now we can work with the hydrogen.

227 grams of TNT contain 5 moles of H

1.12 grams of TNT would contain (1.12 .5) / 227 = 0.0247 moles

Finally let's convert this moles to atoms:

0.0247 mol . 6.02×10²³ atoms / 1 mol = 1.49×10²² atoms

8 0

3 years ago

HELPP

Natasha_Volkova [10]

I’m pretty sure it’s D.increases the activation energy for a reaction.

4 0

3 years ago

What is the direction of the polarity of the indicated bond in h3c−oh marked by δ+ and δ−?

Sedbober [7]

Answer:- The direction of the polarity of the indicated bond is from carbon to oxygen.

Explanations:- There are two types of covalent compounds, polar and non polar. If the bond is between two same atoms for example, H-H, Cl-Cl etc then the bond is non polar. If the bond is between two different atoms then the bond would be polar. The direction of the polarity is from loss electron negative atom to more electron negative atom.

Oxygen is more electron negative than carbon. So, being more electron negative, the bonding electrons are more towards oxygen and it cases partial negative charge on oxygen and partial positive charge on carbon. The direction of the polarity is from less electron negative carbon to more electron negative oxygen.

It is shown in the diagram below:

6 0

3 years ago