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
mylen [45]
2 years ago
12

When a volcano erupt,what suggestion can you give to those people living near in the area.

Chemistry
2 answers:
avanturin [10]2 years ago
8 0

Answer:

use a mask

Explanation:

thats all I can help

dlinn [17]2 years ago
4 0
A. The mask will be used to help the person evacuating avoid getting ash in their lungs
You might be interested in
A balloon occupies 1.50 L with 0.205 mol of carbon dioxide. How many moles would be required to increase the size of the balloon
Gekata [30.6K]

Answer:

0.683 moles of the gas are required

Explanation:

Avogadro's law relates the moles of a gas with its volume. The volume of a gas is directely proportional to its moles when temperature and pressure of the gas remains constant. The law is:

V₁n₂ = V₂n₁

<em>Where V is volume and n are moles of 1, initial state and 2, final state of the gas.</em>

<em />

Computing the values of the problem:

1.50Ln₂ = 5L*0.205mol

n₂ = 0.683 moles of the gas are required

<em />

8 0
3 years ago
A gas has a volume of 200. mL at 350. mm Hg. What will its volume be if the pressure is changed to 555. mm Hg
mrs_skeptik [129]

Answer:

The final volume when pressure is changed is 126.1mL

Explanation:

Based on Boyle's law, in a gas the volume is inversely proportional to its pressure when temperature remains constant. The equation is:

P₁V₁ = P₂V₂

<em>Where P is pressure and V volume of 1, intial state and 2, final state.</em>

<em />

Computing the values of the problem:

350mmHg*200mL = 555mmHgV₂

126.1mmHg = V₂

<h3>The final volume when pressure is changed is 126.1mL</h3>
6 0
2 years ago
Salt water is which type of substance?
gavmur [86]

Answer: a. solution

Explanation:

A solution is a mixture which contains two or more than two types of components and they can be separated by physical means as well.Example: salt water

Molecule of an element is defined as the aggregate of atoms of similar elements. Example: H_2. Molecule of a compound is the aggregate of atoms of different elements in a fixed ratio by mass. Example: CO_2

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: H_2O

A pure substance is a substance which contains definite composition of only one type of component. Hence, it cannot be separated by physical means. Example: Helium, water

6 0
3 years ago
Read 2 more answers
G you have 57.0 ml of a 0.400 m stock solution that must be diluted to 0.100 m. assuming the volumes are additive, how much wate
Amanda [17]
Answer:
added water = 171 ml

Explanation:
Assuming volumes are additive, the rule that we will use to solve this question is:
M1V1 = M2V2
where:
M1 is the initial concentration = 0.4 m
V1 is the initial volume = 57 ml
M2 is the final concentration = 0.1 m
V2 is the final volume that we want to calculate
Substitute with the given in the above equation to get V2 as follows:
M1V1 = M2V2
(0.4)(57) = (0.1)V2
22.8 = 0.1V2
V2 = 228 ml

Now, the final volume is equal to the initial volume plus the amount of added water. So, to get the amount of added water, we will subtract the initial volume from the final volume as follows:
V2 = V1 + added water
228 = 57 + added water
added water = 228 - 57 = 171 ml

Hope this helps :)
3 0
3 years ago
How would a bar magnet orient itself relative to this planet's magnetic field?
Maksim231197 [3]

The magnet's north pole would point to the Earth's south pole and the magnet's south pole would point to the Earth's north pole.

<u>Explanation</u>:

  • There is a magnetic pole in the earth and the magnetic poles of the earth run using the equator and it has both the closures at the arctic pole and the Antarctic pole. The attractive positive field or the north pole is situated in the arctic zone and the south pole is situated in the Antarctic zone.  
  • The magnetic positive field or the north pole is situated in the arctic zone. Any magnet which is allowed to rotate whenever suspended on the outside of the earth will align itself with the magnetic field of the earth. That is the way the bar magnet orients itself comparative with this current planet's magnetic field.
7 0
2 years ago
Other questions:
  • Two liquids – one polar, one nonpolar – have the same molar mass. which one has the higher boiling point?
    9·1 answer
  • How would Mg change to gain a noble gas structure?<br><br> lose 2 electrons<br> gain 6 electrons
    10·2 answers
  • HELP ASAP PLZZZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·2 answers
  • How are elements and compounds related
    11·1 answer
  • More heat is related to evaporate in the same way that less heat is related to __________.
    5·2 answers
  • Explain why the sun will not explode at any point in its life cycle
    11·2 answers
  • Plz help me again I can not do science I stg I might lose my mind.
    15·2 answers
  • What is the difference between chemical change and physical change
    9·1 answer
  • Which of the following conclusions might a scientist make when fossils of two different species of very similar organisms are fo
    9·1 answer
  • What is saturation <br><br> Give two examples each of acid and basic salt
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!