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2 years ago

Explain why landscapers might sift soil that they use to construct gardens.

Chemistry

1 answer:

Studentka2010 [4]2 years ago

6 0

Answer:

When one desires to remove debris from the garden then a soil sifter can be used as a beneficial tool. Based on the needs, it can be of different kinds. A landscaper may sift soil that they use at the time of constructing gardens due to many reasons:

1. The soil becomes aerated, and thus, turn soft and easy to work upon.

2. Sifting the soil makes the work of withdrawing undesired substances from the soil easy.

3. It helps the plants to grow much better as the roots possess the tendency to penetrate more easily through the soil.

4. The soil becomes healthy due to shifting, thus, helps in producing a beautiful and healthy landscape.

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Why do deep earthquake do less damage then shallow ones ?

Nata [24]

Shallow ones are seismic waves from deep quakes that have to travel farther to the surface, losing energy along the way. shaking is more intense from quakes that hit close to the surface.

5 0

2 years ago

A. If the mass of Hydrogen is 1 amu, what is the mass of Hydrogen in the reactant side of the equation above?

dimulka [17.4K]

Answer:

there are 4 hydrogen so

A.the mass of Hydrogen in the reactant side of the equation above is 1×4=4 amu.

B.the mass of Hydrogen on the product side of the equation above =1×4=4 amu.

Note: mass of reactant =mass of product.

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2 years ago

What advantage does having ultraviolet vision give bees?

nikdorinn [45]

Ultraviolet helps bee's see depth and they can see 3 dimensional, they can also see long distance. Bee's have have single lenses that helps the bee maintain stability and navigate.

Short Answer: Ultraviolet vision helps bees help detect UV flower colors

- Hope this helps!

3 0

3 years ago

A brick has a mass of and the Earth has a mass of . Use this information to answer the questions below. Be sure your answers hav

weeeeeb [17]

The given question is incomplete. The complete question is:

A brick has a mass of 4.0 kg and the earth has a mass of $6.0\times 10^{27}g$ Use this information to answer the questions below. Be sure your answers have the correct number of significant digits. What is the mass of 1 mole of bricks? Round your answer to 2 significant digits. How many moles of bricks have a mass equal to the mass of the Earth? Round your answer to 2 significant digits.

Answer: The mass of 1 mole of bricks is $2.4\times 10^{27}g$

2.5 moles of bricks have a mass equal to the mass of the Earth

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number $6.023\times 10^{23}$ of particles.

Mass of 1 brick = 4.0 kg = 4000 g (1kg=1000g)

Thus mass of 1 mole of brick or $6.023\times 10^{23}$ bricks will be = $\frac{4000g}{1}\times 6.023\times 10^{23}=2.4\times 10^{27}g$

The mass of 1 mole of bricks is $2.4\times 10^{27}g$

Now $2.4\times 10^{27}g$ will correspond to = 1 mole of bricks

$6.0\times 10^{27}g$ will correspond to = $\frac{1}{2.4\times 10^{27}}\times 6.0\times 10^{27}=2.5moles$

2.5 moles of bricks have a mass equal to the mass of the Earth

5 0

2 years ago

Help me with this chemistry question please.

rodikova [14]

Answer:

B) Because you are adding positively charged protons, which pull in the outer electrons.

Explanation:

Since the increase in protons have a greater effect then the increase in electrons the protons pull the electrons in closer resulting the radius of an atom to decrease from left to right across a period.

4 0

3 years ago