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3 years ago

A flask and a beaker each contain the same amount of water. How are they similar? How are they different?

2 answers:

3 0

Answer:It's used for all the reasons a beaker is, but has the advantage of a long, narrow neck. The extended neck makes it possible to swirl a solution vigorously without spilling, and it makes the vessel fairly easy to pour.

Explanation: Took the same testt

kumpel [21]3 years ago

3 0

Now, for other purposes, they are pretty different. Beakers are mostly just meant to hold things, flasks on the other hand are often used for running reactions in and mixing or heating. The long neck makes it much less likely to spill or burst out compared to a beaker. Flasks are really good for swirling by hand for instance.

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How many seconds are there in 23 days ?

Brrunno [24]

Since there are 23 days and 24 hours in each day, you multi-ply them and get 552 hours. Since each hours is 60 minutes, 552*60 is 33120 minutes. Since one minute is 60 seconds, 60*33120 is 1,987,200 seconds. Therefore, there are 1,987,200 seconds in 23 days.

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3 years ago

Which of the

saul85 [17]

Answer:

During chemical reactions, matter is neither

created nor destroyed; it just changes form.

Explanation:

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3 years ago

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5. Give one advantage of KIO3 as primary standard.

alexdok [17]

Answer:

one advantage of KLO3 as a primary standard is that it is used to know concentration of a solution.

Explanation:

The reaction provides confirmation that the solution is at a specific concentration. Primary standards are often used to make standard solutions (a solution with a precisely known concentration

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3 years ago

Chlorine can bond with fluorine to form CIF. Chlorine can also bond with lithium to form LiCI Which compound will have a greater

Sergio [31]

Answer: $ClF$ will have a greater partial charge.

Explanation:

A polar covalent bond is defined as the bond which is formed when there is a low difference of electronegativities between the atoms, thus resulting in charge difference. Example: $ClF$

Non-polar covalent bond is defined as the bond which is formed when there is no difference of electronegativities between the atoms and thus there is no charge difference. Example: $F_2$

Ionic bond is formed when there is complete transfer of electron from a highly electropositive metal to a highly electronegative non metal. The electronegative difference between the elements is high. The charges on cation and anion neutralise each other. Example: $LiCl$

Thus as $ClF$ will have greater partial charge.

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3 years ago

How to find how many atoms are in grams.

professor190 [17]

Explanation:

To calculate the number of atoms in a sample, divide its weight in grams by the amu atomic mass from the periodic table, then multiply the result by Avogadro's number: 6.02 x 10^23.

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3 years ago