3 years ago

I didn’t study for this lol if your answer correct I’ll mark ur answer brainliest

Chemistry

1 answer:

kotykmax [81]3 years ago

4 0

Answer:

Explanation:

3 is the answer is did this a little while ago

You might be interested in

As ___ increases,___ increases

Goshia [24]

Answer:

if the force applied increases

if the area of contact increases

Explanation:

8 0

2 years ago

All of the following describe the unique role of water except-

9966 [12]

Option c
water is non polar and can dissolve non polar compounds such as oil
water is unable to dissolve or mix with substances like oil therefore making the statement false

6 0

3 years ago

What are the various ways in which an atom of an element can achieve the noble gas configuration ?

azamat

Answer:

<h3><em>Atoms attain noble gas configuration </em><em> by obtaining or donating and sharing of electrons present in their outermost shell.</em><em> </em></h3>

7 0

2 years ago

4.1 shows a plant cell. g For Examiner's Use n. C D Fig. 4.1 (i) Name the type of plant cell shown in Fig. 4.1. [1]

Vinil7 [7]

Answer:

palisade cell due to presence of chloroplasts

7 0

2 years ago

How many joules of energy are required to vaporize 13.1 kg of lead at its normal boiling point?

Korolek [52]

Answer: 1123000 Joules of energy are required to vaporize 13.1 kg of lead at its normal boiling point

Explanation:

Latent heat of vaporization is the amount of heat required to convert 1 mole of liquid to gas at atmospheric pressure.

Amount of heat required to vaporize 1 mole of lead = 177.7 kJ

Molar mass of lead = 207.2 g

Mass of lead given = 1.31 kg = 1310 g (1kg=1000g)

Heat required to vaporize 207.2 of lead = 177.7 kJ

Thus Heat required to vaporize 1310 g of lead = $\frac{177.7}{207.2}\times 1310=1123kJ=1123000J$

Thus 1123000 Joules of energy are required to vaporize 13.1 kg of lead at its normal boiling point

7 0

3 years ago