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Nat2105 [25]
2 years ago
12

Is sandy, silt, or clay loam better? and why?

Chemistry
1 answer:
vampirchik [111]2 years ago
5 0
Clay soils are often rich in plant nutrients. In contrast, sandy soils can drain water too quickly for healthy plant growth and tend to be low in nutrients, but they are easier to work.
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What is an exothermic reaction? Combustion of fuel is an exothermic process. Explain why by providing an example of a fuel. Give
ad-work [718]

Answer:

An exothermic reaction is a chemical reaction in which energy is given out to the surroundings in the form of heat or light or even sound.

Other explanations are given below.

Explanation:

An exothermic reaction is a chemical reaction in which energy is given out to the surroundings in the form of heat or light or even sound. In exothermic reactions, the energy content of the products are lower than that of the reactants and this excess energy is therefore released as the reaction proceeds towards formation of products.

Combustion of fuel is an exothermic reaction because the process involves the  release of energy in the form of heat and light to the surroundings as the reactants (usually a fuel and oxygen) which are at a higher energy state combine to give the products which are at a lower energy state (usually CO₂ and water).

An example of a fuel is the gas propane found in cooking gas. It combines with oxygen found in air to produce the heat that is used to cook our foods.

Other examples of exothermic reactions include

1.Lighting firewood: In this process, wood which is a mixture of gaseous fuels like methane and solid fuel like charcoal combine with oxygen found in air to produce carbon (iv) oxide and water vapor while releasing heating the process.

2. Lighting a match: The head of safety matches are made of potassium chlorate, mixed with sulfur, fillers and glass powder.  The side of the box contains red phosphorus, binder and powdered glass. When the match is struck, the friction generates heat which causes a small amount of red phosphorus to be converted to white phosphorus, which then ignites spontaneously in air.  The heat produced initiates the decomposition of potassium chlorate to give oxygen and potassium chloride.  The sulfur catches fire and ignites the wood which also burns in the air to release carbon (iv) oxide an water.

3. Burning of coal: Coal is solid carbon which combines with oxygen in air when ignited to produce carbon (iv) oxide and water vapor while also releasing heat and light energy.

8 0
2 years ago
What factors does the gravitational potential energy of an object depend on
AysviL [449]
It depends on the weight and the high and the location of the object. I hop I helped. Have a great day
4 0
3 years ago
Read 2 more answers
The specific heat of water is 4.184 J/g˚C How much heat energy is absorbed when 88.0 g of water is heated from 5.8 C to 35 C? (H
konstantin123 [22]

Answer:

The heat absorbed is hence 10.751.21 J

Explanation:

The heat absorbed when 88g of water is heated from 5.8°C to 35 °C is;

Heat = m c ΔT

m = 88.0 g

c = specific heat of water = 4.184 J/g°C

ΔT = ( change in temperature) = ( 35 - 5.8)°C = 29.2°C

Equating these values into the formula, we obtain;

Heat = 88* 4.184 * 29.2

Heat = 10 751.2064 J

Heat = 10 751.21 J (2 d.p)

The heat absorbed is hence 10.751.21 J

6 0
3 years ago
Mass is 5 grams and the volume is 4.5 grams what is the density
STatiana [176]
Density = Mass/Volume

d= 5 / 4.5
8 0
3 years ago
+<br> c)<br> FeCl3 +<br> NH4OH<br> Fe(OH)3<br> NHACI
bixtya [17]

The question is incomplete, the complete question is:

Write the net ionic equation for the below chemical reaction:

(c): FeCl_3+3NH_4OH\rightarrow Fe(OH)_3+3NH_4CI

<u>Answer:</u> The net ionic equation is Fe^{3+}(aq)+3OH^{-}(aq)\rightarrow Fe(OH)_3(s)

<u>Explanation:</u>

Net ionic equation is defined as the equations in which spectator ions are not included.

Spectator ions are the ones that are present equally on the reactant and product sides. They do not participate in the reaction.

(c):

The balanced molecular equation is:

FeCl_3(aq)+3NH_4OH(aq)\rightarrow Fe(OH)_3(s)+3NH_4Cl(aq)

The complete ionic equation follows:

Fe^{3+}(aq)+3Cl^-(aq)+3NH_4^+(aq)+3OH^{-}(aq)\rightarrow Fe(OH)_3(s)+3NH_4^+(aq)+3Cl^-(aq)

As ammonium and chloride ions are present on both sides of the reaction. Thus, they are considered spectator ions.

The net ionic equation follows:

Fe^{3+}(aq)+3OH^{-}(aq)\rightarrow Fe(OH)_3(s)

5 0
3 years ago
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