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
S_A_V [24]
3 years ago
13

Following a volcanic eruption which event is usualy the last one to be observed

Chemistry
2 answers:
Kay [80]3 years ago
8 0

Answer: usually the lava flowes out and starts burning down buildings and sturctures and by that happens people usually have evacutated the premises.

Explanation:

kvasek [131]3 years ago
6 0

Answer:

A. grasses begin to grow in soil with organic matter

B. tress begin to grow in thick rich soil

C. mosses begin to grow in thin rocky soil

D. lichens begin to cover bare rock

It would be B. because that comes last.

Explanation:

Whenever a volcano erupts, it puts a layer of rock over everything. Basically, over years and years, lichens will start growing and breaking down the rock. A bunch of years later, mosses will begin to grow in the "soil" that the lichens broke down. When the rocky dirt becomes actual dirt, grasses will start to grow. After that shrubs, and then trees.

Hope this helped! :)

You might be interested in
I need help answering this question
Gemiola [76]

Answer:

b,d

Explanation:

An ion is an atom with a difference in the amount of protons and elektrons.

6 0
3 years ago
Read 2 more answers
Rutherford proposed that atoms have positive nuclei. Which statement correctly describes the nucleus of an atom?
DIA [1.3K]
I'm not 100% sure but I'm leaning towards D. :)
8 0
3 years ago
Read 2 more answers
Based on the activity series of metal, which reaction with water will not happen?
laila [671]

Answer:

B

Explanation:

B, H2O + Na The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water,

5 0
3 years ago
A- is a weak base. which equilibrium corresponds to the equilibrium constant ka for ha?
vekshin1

Answer:

K_a=\frac{[H^+][A^-]}{[HA]}

Explanation:

ka is defined as the dissociation constant of an acid. It is defined as the ratio of concentration of products to the concentration of reactants.

For the dissociation of weak acid, the chemical equation follows:

HA\rightleftharpoons H^++A^-

The equilibrium constant is defined by the equilibrium concentration of products over reactants:

K_a=\frac{[H^+][A^-]}{[HA]}

5 0
3 years ago
What is the mole ratio of NH3 to N2?
Ksenya-84 [330]
To answer this question a balanced chemical equation is necessary. The correct equation is: N2 + 3H2 = 2NH3
From this equation, one mole of nitrogen react with 3 moles of hydrogen to give 2 moles of ammonia.
Therefore, the mole ratio of NH3 to N2 is 2:1
8 0
3 years ago
Other questions:
  • Nacl is an ionic solid. the na+ and cl− ions in nacl are bonded through an electrostatic force of attraction commonly known as t
    9·2 answers
  • What earths layer is broken up like puzzle pieces
    13·1 answer
  • Are Cells are made up of atoms.
    11·2 answers
  • Sound travels at a rate of 340 m/s in all directions through air. Matt rings a very loud bell at one location, and Steve hears i
    11·2 answers
  • The horse achieved its highest status during the___________dynasty (618-906 CE), a time of unparalleled political, artist, and c
    14·1 answer
  • The state of matter in which a material has definite shape and definite<br> volume is the
    14·1 answer
  • A robotics scientist is trying to create a baseball pitching machine that will throw balls at different speeds and in exactly th
    15·2 answers
  • A plant living in the environment shown in the picture would have to be adapted not to loose to much water through its___
    13·2 answers
  • Write a paragraph (5-7 sentences) describing pH and conductivity.
    6·1 answer
  • A sample of silicon has an average atomic mass of 28.084amu. In the sample, there are three isotopic forms of silicon. About 92.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!