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First State : Punjabsoil - Alluvial soil
crops - Cotton, wheat, sorghum, bajra, maize, barley, jute, tobacco, green and black gram, chickpea, pigeon pea, etc.
Suitable properties : Mix of sandy loam and clay soil. Quick draining in nature. Rich in humus (organic matter) and phosphoric acid
Second state : Maharashtrasoil - black soil
Crops - Cotton is the major crop. Other crops include wheat, cereals, rice, jowar, sugarcane, linseed,
Suitable properties : Black soils get sticky when fully wet. Rich in magnesium, iron, aluminum, and lime. They moisture excellently.
Third state : Orrisasoil - laterite soil
crops - wheat, rice, pulses, rubber, tea, coffee, coconut, and cashews.
suitable properties : These Soils are acidic in nature and coarse and crumbly in texture. it is also rich in iron content.
Fourth state : Rajasthansoil - Arid soil
crops - Barley, maize, wheat, millets, cotton, and pulses.
Suitable properties - Sandy soils with low clay content, Saline in nature. Rich in plant food. Poor in organic matter and moisture because arid regions are usually dry.
Fifth state : Sikkimsoil - Mountain and Forest Soil
Crops- Wheat, barley, maize, tea, coffee, spices, tropical and temperate fruits.
Suitable properties - Acidic soil, rich in organic matter. Poor in lime, phosphorus, and potash. Good fertilization is required in these soils.
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Answer:
Option a
Explanation:
simple
Answer:
The two solutions do not react with each other unless the water is boiled off, then the two will decompose.
Explanation:
What are the most common sources of nitrates that lead to unhealthy water systems
Answer:
Sources of nitrate that can enter your well include fertilizers, septic systems, animal feedlots, industrial waste, and food processing waste.
A machine increase the rate of doing ______.
Sharp instruments are called ______.
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What are the Chemical properties of Ethyne
Answer:
Ethyne is a colourless gas with a characteristic smell. It has a melting point -81oC. It has a boiling point -84oC.
Explanation:
Gravity relates to a stream's ability to erode and deposit material by causing water to flow faster down a steep slope. True or False
Answer:
true
Explanation:
Describe what does happen to the electrons when metal atoms are bonded together.
Answer: In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions. Metals are shiny.
Explanation: Hope this helped!
How do anion formation and valence electrons relate?
Answer:
Atoms gain valence electrons to form anions.
Explanation:
Considering qualitative and quantitative observations, qualitative observations uses numbers and symbols.
True or false?
How does the law of conservation of mass apply to this reaction:Mg + 2HCl → H2 + MgCl2?
Answer:
The law of conservation of mass has already been applied. There is an equal number of each element on both sides of the equation.
Explanation:
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I hope I helped
Calculate the number of moles of alkali in 25cm3 of NaOH solution used.
Answer:
0.001mol
Explanation:
volume (NaOH) =25cm³ =0.025dm³
molar volume = 22.4dm³
n = V = 0.025 = 0.001mol
Vm 22.4
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Answer:
d
Explanation:
Answer: c
Explanation:
Give 3 physical properties common to most metals
Answer:
What are you a 6 yo? Anyways, the most common properties are, They are good conductors of electricity, They are lustrous and They are sonorous.
hello does anyone get this????????????? pls help
Explanation:
physical changes : boiling water, freezing water, a pencil being sharpened.
chemical change : rotting cheese, exploding dynamite.
Answer:
boiling water
a pencil being sharpened
freezing water
Explanation:
A change that does not lead to any difference in chemical composition of a substance is known as a physical change.
For example, shape, size, mass, volume, density, boiling point, etc of a substance are all physical properties.
On the other hand, changes that lead to bring change in chemical composition of a substance is known as a chemical change.
For example, exploding dynamite, rotting cheese etc are all chemical changes.
Chemical change is the change in which there is rearrangement of atoms and the new substances get formed.
Boiling water only changes the phase from liquid to gas and thus is a physical change.
Pencil on being sharpened only gets smaller in size and thus is a physical change.
exploding dynamite would result into formation of new substances and hence a chemical change.
Freezing water only changes the phase from liquid to solid and thus is a physical change.
Rotting cheese would result in formation of new substances and hence a chemical change.
Therefore, we can conclude that following are the physical changes in matter.
boiling water.
a pencil being sharpened.
freezing water.
Which of the following changes the solid Earth the most?Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. Which of the following rocks results from the metamorphism of limestone?
Answer:
The metamorphism of limestone results in the formation of marble
Explanation:
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Someone pls help me I will make you brain
Answer:
The answer is steam of fossil fuels
is it true or false when the there are too many protons making the nuclei unstable, it will undergo a positron decay and a proton will turn into a neutron.
Answer:
True
Explanation:
As the number of protons in the nucleus increases, the number of neutrons needed for a stable nucleus increases even more rapidly.
Which statement describes a characteristic of a question that can be answered through scientific inquiry
the correct one is D
What is the source of the full spectrum of UV radiation?
Answer:
Here's ur answer
Explanation:
A sample of an unknown solid is found to have a volume of 24.3 cm3 and a mass of
217.0 grams. What is the density of the unknown
Density = mass ÷ volume
= 217.0 g ÷ 24.3 cm³
= 8.93 g/cm³
∴ the unknown sample of mass 217.0 grams and volume of 24.3 cm³ has a density of 8.93 g/cm³.why do we think mercury has so many tremendous cliffs?
can somebody please helpppp???
Answer:
aluminum is highly reactive
Answer:
Aluminum is highly reactive
Explanation:
Chemical property is defined as the property in which chemical composition of the substance changes.
For example, reactivity, oxidation state, inflammability etc are all chemical properties.
Therefore, we can conclude that out of the given options, Aluminum is highly reactive depict a chemical property of aluminum.
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50 points
10. Fill in the blanks in the table below about an atom's subatomic particles.
A. electron, B. Nucleus
Proton is positive charge, electron is negative charge
proton weight, 1 AMU
Briefly discuss the 3 most important properties of metals
Answer: Luster: Metals are shiny when cut, scratched, or polished.
Malleability: Metals are strong but malleable, which means that they can be easily bent or shaped.
Conductivity: Metals are excellent conductors of electricity and heat.
Explanation: Hope this helped!
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1. The equation representing the equation is ~
[tex] \mathrm{Na + Cl\rightarrow NaCl}[/tex]
The given reaction is a redox reaction because there's a transfer of electron from Sodium (Na) to chlorine (Cl)
where sodium is oxidized (due to loss of electron) and chlorine get reduced (due to gain of electron).
2. Sodium is a highly reactive element which belongs to the 1st group of periodic table, hence it can catch fire if it is kept free in atmosphere. so in order to prevent that it is stored in kerosene oil, which doesn't let Sodium come in contact with air .
Each mineral group has a distinctive chemical feature such as
a. oxides are a metal combined with oxygen
b. sulfides are a metal combined with sulfur and oxygen
c. halides are a salt combined with a metallic atom
d. phosphates are made of phosphate polygons
Answer:
A
Explanation:
which of the following statement is correct for a group of a periodic table.
i} All elements have different valency.
ii} The atomic size decrease as we move down.
iii} The electropositivity increase down the group.
iv} The electronegativity increase down the group.
Answer:
I believe it is B
Explanation:
I am on this lesson too :)
Answer:
III Electropositivity increases down the group
Explanation:
Give two other examples each to acidic and basic oxides
Answer:
Acidic oxide, so², So³, Co², Cl²O7
Basic oxide: CaO, MgO, Na O
Explanation:
An oxide that combines with water to give an acid is termed as an acidic oxide. The oxide that gives a base in water is known as a basic oxide.
Why is it important for scientists to use the scientific method?
A. Scientists would not ask questions if the scientific method were
not used.
B. Experiments would not produce any data without the scientific
method.
C. The scientific method helps scientists get accurate, repeatable
results,
D. Using the scientific method means that the results will support the
hypothesis
Explanation:
It provides an objective, standardized approach to conducting experiments and, in doing so, improves their results. By using a standardized approach in their investigations, scientists can feel confident that they will stick to the facts and limit the influence of personal, preconceived notions.
I hope this helps you out!