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
cestrela7 [59]
3 years ago
13

1.In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away. Which

of the layers in this example represents the horizon that is alive with roots, fungi, bacteria, worms, small arthropods like spiders and so on?
A. O
B. A
C. B
D. C

2.In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away. Which of the layers in this example represents the horizon that is very thin and contains large amounts of organic matter?
A. O
B.A
C.B
D.C


3.True or false: In the outline find your section on soil horizons. In it you will find a diagram representing a view of a soil cut away. Horizon B in this example would be very difficult for soil organisms to move through because it would be a very hard layer.
A. True
B.False
Chemistry
1 answer:
gogolik [260]3 years ago
3 0
What grade level 
 is this?
You might be interested in
Will mark brainliest
poizon [28]

Explanation:

solid, liquids and gases are all made up of atoms and molecules

contrast

solids have a definite shape, liquids takes the shape of the container that contains it while gases do not have a shape

solids move about their mean positions, liquids move more freely while gases move in random motion

solids cannot be easily compressed, liquids can be compressed while gases can be easily compressed

5 0
2 years ago
A scientist is working in a lab and accidentally combines two liquids that quickly form a solution. Which process could be used
lions [1.4K]

Answer:

Heating the liquids and letting one boil away first :)

Explanation:

7 0
2 years ago
What will be the new volume if 125 mL of He gas at 100 degree Celsius and .979 atm is cooled to 26 degree Celsius and the pressu
ycow [4]
Use Boyle's Law of Pressure: P1 x V1 = P2 x V2. Givens: P1=0.9 atm V1=                4 P2= 0.9 atm Find: V2 Equation: 0.9 atm x 4 x 4 L = 0.20 atm x V2Solve: 36 atmL= 0.20 atm x V2 18 : = V2 Short answer: The new volume is 104 ml. 
6 0
3 years ago
What is the oxidation half-reaction for this unbalanced redox equation? cr2o72– + fe2+ → cr3+ + fe3+ cr3+ → cr2o72– cr2o72– → cr
KatRina [158]

Answer:

6Fe^2+(aq) -------> 6Fe^3+(aq) + 6e

Explanation:

The balanced oxidation half equation is;

6Fe^2+(aq) -------> 6Fe^3+(aq) + 6e

A redox reaction is actually an acronym for oxidation-reducation reaction. Since the both reactions are complementary, there can't be oxidation without reduction and there can't be reduction without oxidation.

The main characteristic of redox reactions is that electrons are transferred in the process. The number of electrons transferred is usually deduced from the balanced reaction equation. For this reaction, the balanced overall reaction equation is;

Cr2O7^2–(aq) + 6Fe^2+(aq) +14H^+(aq)→ 2Cr^3+(aq) + 6Fe^3+ (aq) + 7H2O(l)

It is clear from the equation above that six electrons were transferred. Thus six Fe^2+ ions lost one electron each in the oxidation half equation as shown in the balanced oxidation half equation above.

4 0
3 years ago
What titrant will be used to titrate the 0. 02 m hcl phenol red solution?
RideAnS [48]

The NaOH will be used What titrant  to titrate the 0. 02 m hcl phenol red solution.

Acid-base titrations may be the most typical titrations, although there are numerous more forms as well. Take a look at this illustration where sodium hydroxide is used to titrate a sample of hydrochloric acid (HCl) (NaOH). The titrant (NaOH), which is added gradually throughout the duration of the titration, has been added to the unknown solution.

Titrants are solutions with known concentrations that are added to solutions whose concentrations must be determined. The solution for whom the concentration needs to be determined is known as a titrant as well as analyte.

Therefore, the NaOH will be used as a titrant to titrate the 0. 02 m hcl phenol red solution.

To know more about titrant

brainly.com/question/21504465

#SPJ4

7 0
1 year ago
Other questions:
  • What is the electron configuration of the element located in the fourth row of the periodic table in group 5a?
    8·2 answers
  • Science help please!!!
    15·1 answer
  • All forces produce motion.<br><br> True<br> False
    5·2 answers
  • How many mmHg are in 1.6320 atm
    15·2 answers
  • What causes a dipole-dipole force?
    11·1 answer
  • Calculate the mass in grams of 1.72×10^24 molecules of formaldehyde. The chemical formula for formaldehyde is CH2O.
    9·1 answer
  • How to covert ethanol into 2-butanol.(show reaction)​
    10·1 answer
  • The conversion of glucose to lactic acid is called:
    12·2 answers
  • Energy can interact with objects and cause them to ________ or change
    6·1 answer
  • A cylinder at left with balls evenly spaced throughout the cylinder with an arrow leading to a cylinder at right with balls stac
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!