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
ANEK [815]
3 years ago
12

Farmer brown is planting crops in his feild s. He wants to prevent the topsoil from being blown away by the wind or washed away

from by water. Which of these steps should he take. A: plow the soil many times. B: plant crops close together. C: water crops often to wet soil. D: leave the land free of crops for a long time
Chemistry
2 answers:
Ratling [72]3 years ago
4 0
Hey!

I would say the answer is A. Plow the soil many times to lessen the chance of the topsoil being blown away.

Hope this helps !
Ksivusya [100]3 years ago
4 0

Answer:

C: water crops often to wet soil.

Explanation:

Working in the plan industry, it becomes obvious that when watering the plants often, it will pack down the topsoil into the plant. Topsoil is lose at first as stated above, but when enough water gets on it, it becomes almost like mud. This is the kind of topsoil you want. No wind or water will mess it up because it already it watered! It will also help the grow. In addition, plowing is not correct because you only need to plow twice in the plant process. Before you plant the seeds, and to harvest the crops. If you plow to soon and often, you won’t have any plants.

You might be interested in
spaghetti takes about 9 minutes to cook at sea level, but about 14 minutes in the mountains. why do you think this happens???
Ivahew [28]
Water boils when the vapor pressure of the water equals the atmospheric pressure that's pressing down on it.  Water boils at a lower temperature (more easily) at higher elevations (like on mountains), because:

-  Atmospheric pressure is lower at higher elevation

-  Easier for vapor pressure to equal this lower atmospheric pressure

Since the water boils at a lower temperature, it takes longer for the pasta to cook.  
3 0
3 years ago
Read 2 more answers
What is the best description of weathering
aleksley [76]

Answer:The best answer is D. breakdown of rock through mechanical or chemical processes

Explanation:

3 0
3 years ago
Read 2 more answers
The following reaction shows the products when sulfuric acid and aluminum hydroxide react.
scoray [572]

Leftover: approximately 11.73 g of sulfuric acid.

<h3>Explanation</h3>

Which reactant is <em>in excess</em>?

The theoretical yield of water from Al(OH)₃ is lower than that from H₂SO₄. As a  result,

  • Al(OH)₃ is the limiting reactant.
  • H₂SO₄ is in excess.

How many <em>moles</em> of H₂SO₄ is consumed?

Balanced equation:

2 Al(OH)₃ + 3 H₂SO₄ → Al₂(SO₄)₃ + 6 H₂O

Each mole of Al(OH)₃ corresponds to 3/2 moles of H₂SO4. The formula mass of Al(OH)₃ is 78.003 g/mol. There are 15 / 78.003 = 0.19230 moles of Al(OH)₃ in the five grams of Al(OH)₃ available. Al(OH)₃ is in excess, meaning that all 0.19230 moles will be consumed. Accordingly, 0.19230 × 3/2 = 0.28845 moles of H₂SO₄ will be consumed.

How many <em>grams</em> of H₂SO₄ is consumed?

The molar mass of H₂SO₄ is 98.076 g.mol. The mass of 0.28845 moles of H₂SO₄ is 0.28845 × 98.076 = 28.289 g.

How many <em>grams</em> of H₂SO₄ is in excess?

40 grams of sulfuric acid H₂SO₄ is available. 28.289 grams is consumed. The remaining 40 - 28.289 = 11.711 g is in excess. That's closest to the first option: 11.73 g of sulfuric acid.

6 0
3 years ago
HELP ME PLEASE!!!!! I NEED TO GET THIS RIGHT I CANT FAIL
Mnenie [13.5K]

Answer:

c.11.43 g of aluminum hydroxide

Explanation:

4 0
3 years ago
Use trends in the periodic table to predict the intensity of the following reactions. Match the letter of each reaction to the p
Shtirlitz [24]
We can use the reactivity series of metals to solve this.

The reactivity series of metals are (in descending order) :
Potassium, sodium, Lithium, calcium, Magnesium, aluminum, zinc, iron, tin, lead, copper, mercury, silver, platinum, gold.

Since Potassium is the most reactive, the reaction with water should produce extremely violent gas.

Sodium is the next most reactive, so it should produce violent gas.

And Lithium is the least reactive out of the 3 metals, so it should be strong gas formation.

In addition, the gas produced should be hydrogen, since the reaction of metals should water should produce "metal name" hydroxide + hydrogen.
4 0
4 years ago
Other questions:
  • 1 mole of hcl(g) has a greater entropy than 1 mole of hbr(g). true or false
    14·1 answer
  • All the squares outlined on the model cells are 1 cm by 1 cm.
    9·1 answer
  • What volume of 6.58M HCI is needed to make 500. mL of 3.00M HCI?
    6·1 answer
  • Carbon dioxide can be formed from the reaction of carbon monoxide and oxygen. How many moles of carbon monoxide must be reacted
    15·1 answer
  • If 1.00 mol of argon is placed in a 0.500-L container at 20.0 ∘C , what is the difference between the ideal pressure (as predict
    13·1 answer
  • Which letter indicates the most sudden change in temperature
    5·1 answer
  • A nuclear equation is balanced when? ​
    9·1 answer
  • Inorganic compounds do not contain carbon atoms.
    8·1 answer
  • For 480. 0 mL m L of pure water, calculate the initial pH p H and the final pH p H after adding 2. 0×10−2 mol m o l of HCl H C l
    13·1 answer
  • How many moles are in 63 grams of lithium nitrite, LiNO2?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!