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elena-14-01-66 [18.8K]
3 years ago
9

What are the typical properties of covalent substances ?

Chemistry
1 answer:
Lelu [443]3 years ago
4 0
Covalent compounds are compounds that share electrons. They tend to have properties like lower melting points and lower conductivity.
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21.10g of NaOH and Ba3(OH)2 mixture is dissolved water to prepare 1.0dm³ Solution. To neutralize 25.OO mL of this solution needs
alex41 [277]

From the equation of te reaction, we know that the mass percent  of NaOH in the mixture is 1.4%.

<h3>What is neutralization?</h3>

Neutralization is a reaction that occurs between an acid and a base to yield salt and water only.

In tis case, the reaction of the NaOH and HCl occurs as follows; NaOH + HCl ----> NaCl + H2O

Number of moles of HCl reacted = 15/1000 * 0.5 moldm-³ = 0.0075 moles

Since the reaction is 1:1, 0.0075 moles of NaOH reacted.

Mass of NaOH =  0.0075 moles of NaOH * 40 g/mol = 0.3 g

Percent of NaOH = 0.3 g/21.10g * 100/1 = 1.4%

Learn more about percent concentration: brainly.com/question/202460

8 0
2 years ago
A chemical reaction can start when enough activation energy is added to the reactants. Do you think the activation energy for ch
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High, the enzymes in cells function or speed up reactions by lowering the activation energy.
7 0
3 years ago
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What other elements does iron commonly bonds with.
Neko [114]

☁️ Answer ☁️

annyeonghaseyo!

Your answer is:

it can bond with oxygen to form rust or iron oxide. and it can bond with carbon to form steel.

Here's another one: Iron bonds with lots of things: Oxygen (Ferric Oxide = rust),Chlorine (Ferric Chloride]), Fluorine, ... , even other Iron (in aMetallic Bond or crystal).

Hope it helps.

Have a nice day hyung/noona!~  ̄▽ ̄❤️

5 0
3 years ago
There are 1.204 x 10^24 atoms of oxygen. How many moles is this?
Nastasia [14]

Answer:

7.25 x 10^47

Explanation:

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7 0
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What do you call the procedure that helps you determine the volume of an irregularly shaped object, whole using a graduated cyli
ki77a [65]
The method is called the displacement method.

You place some water in the graduated cylinder and measure its volume.
Then you add your object and measure the new volume.
The difference between the two volumes is the volume of your object.

6 0
3 years ago
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