All categories

2 years ago

The fifth element in group 7 in astatine would you expect it to be gas, liquid, or solid? why?

Chemistry

1 answer:

Ymorist [56]2 years ago

6 0

Answer:

solid

Explanation:

Melting and boiling points of Group 7 elements State at room temperature Room temperature is usually taken as being 25°C. At this temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine and astatine are solids. There is therefore a trend in state from gas to liquid to solid as you go down the group.

You might be interested in

Compounds have the same properties as the elements they are made up of. Is it true or false

hodyreva [135]

( False ) this the answer

6 0

3 years ago

Which one is more reactive out of fluorine and chlorine. why?

Vesnalui [34]

Answer:

fluorine

Explanation:

because it is at the top of the halogen group, which is the second to right group on the periodic table. With halogens, the higher an element is in the column, the more reactive it is. Halogens are reactive because the outer shells that orbit the nucleus lack electrons.

also because it has low dissociation energy and the valence bonding is seen close to the nucleus hence the attraction for a new electron is greater and can gain an extra electron more easily.-if ur in a higer grade u will understand this

3 0

3 years ago

Draw a diagram to show what happens to the particles,when a liquid cools to a solid

Evgen [1.6K]

<h3>Hope it helps you.</h3>

do follow me if you appreciate it

4 0

3 years ago

Read 2 more answers

Delta S will be positive for the reaction ________. a. 2Hg (l) + O2(g) ----------> 2HgO (s) b. 2NO2 (g) -------> N2O4(g) c

nordsb [41]

Answer:

BaF2(s) ------> Ba2 (aq) + 2F- (aq)

Explanation:

Entropy refers to the degree of disorderliness in a system. Processes that lead to greater disorderliness in a system are said to increase the entropy of the system or lead to a positive value of ΔS.

If we consider the process, BaF2(s) ------> Ba2 (aq) + 2F- (aq), we will notice that ions were produced in solution thereby increasing the disorderliness of the system.

8 0

2 years ago

A trucker is driving from New Jersey to California to make a delivery of couches. He forgets to adjust the pressure of his tires

aniked [119]

Answer:

Gay-Lussac's law.

Explanation:

According to Gay-Lussac's pressure law, it states that the pressure of a given mass of gas is directly proportional to the absolute temperature of the gas, the assumption that the volume is kept constant.

Hence, the trucker's tires were blown up because they were under high pressure as he drove from New Jersey to California, as a result of this intense pressure the temperature of the air in the tires began to rise and it directly affected the pressure of the gas in the tires' tubes which also increased to a point that they ended up blowing out, obeying Gay-Lussac's law.

3 0

3 years ago