1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
krok68 [10]
2 years ago
9

3. What are the Earth's Poles? *

Chemistry
2 answers:
WARRIOR [948]2 years ago
6 0

Explanation:

I think the answer is 2nd

babunello [35]2 years ago
5 0
Well it’s definitely not the first option
You might be interested in
The changing of a substance from a liquid into a vapor or gas is called
sergejj [24]

Answer: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.

Explanation: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.

6 0
1 year ago
What is the number of moles of solute in a 0.3 molal solution containing 0.10 kg of solvent? Don't forget the unit.
timurjin [86]
Molality is one way of expressing concentration for solutions. It has units of moles of solute per kg of solvent. From the given values, we easily calculate for the moles of solute by multiplying the mass of solvent to the molality. We do as follows:

moles solute = 0.3 (10) = 3 mol solute


5 0
3 years ago
Read 2 more answers
Easy Question. Will mark brainliest
Xelga [282]

Answer:

Their components

Explanation:

It's simple enough, the components in carbon dioxide and carbon monoxide both have at least one carbon and one oxygen atom. However, they differ because their amount in the molecules is different, and that is because of their covalent bonds. Carbon dioxide has to double electron bonds while carbon monoxide has a rare triple electron bond.

8 0
3 years ago
Fermium-253 is a radioactive isotope of fermium that has a half-life of 3.0 days. A scientist obtained a sample that contained 2
Dahasolnce [82]

Problem 2

You start out with 216 ugrams of Fermium - 253. After 3 days, you will have 1/2 as much. 108 ugrams is what you have.

Another 3 days goes by. You started with 108 ugrams. That gets cut in 1/2 again. Now you have 54 ugrams.

Finally another 3 days goes by. You started with 54 ugrams. you now have 1/2 as much which would be 27 ugrams

#days              Amount in micrograms

0                              216

3                               108

6                                54

9                                27

Problem One

You are using Nitrogen as your base example. The first thing you should do is fill in the table. Then you should try and make some rules. You need the rules in case the exam you are preparing for picks a different element to talk about these bond tendencies. In any event, it's handy to think this way.

<em><u>Table</u></em>

Bond               Energy Kj/Mol               Bond Length pico meters

N - N                 167                                                145

N=N                  418                                                125

N≡N                  942                                               110

<em><u>Rules</u></em>

As the number of bonds INCREASES, the energy contained in the bond goes UP

As the number of bonds INCREASES, the length of the bond goes DOWN.

5 0
3 years ago
Read 2 more answers
20 milliliters of water are poured into a graduated cylinder. A sample of metal is added. The water rises to the 32-milliliter l
Sindrei [870]

Answer:

12

Explanation:

32-20= 12

This is because when the metal is added it adds to the volume of the liquid hence to find the metal itself subtract the final volume from Intel volume

5 0
3 years ago
Read 2 more answers
Other questions:
  • Why nucleus is stable?
    12·2 answers
  • Mercury is the lowest mass bearing planet? True or fales?
    6·1 answer
  • Which staement best describes air pressure at high altitudes?
    15·2 answers
  • An atom has the electron arrangement 2,8. What will it do to gain a full
    12·1 answer
  • Consider this reaction: 2al(s) + 3 cucl2(aq) → 2alcl3(aq) + 3 cu(s) if the concentration of cucl2 drops from 1.000 m to 0.655 m
    15·1 answer
  • What property allows salt to be collected from ocean water?
    14·2 answers
  • What is the maximum number of electrons on the outer layer of atoms?​
    14·1 answer
  • What is the molarity of a solution with 130g of CoCl2 in 1/2 liter? (can you show the steps please)
    11·1 answer
  • Find the chemical reactions for each problem
    12·1 answer
  • What happens to a pendulum’s kinetic energy as the pendulum comes to a stop.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!