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miskamm [114]
2 years ago
10

charcoal removes fine particulates, as well as lead, mercury, copper, and chlorine from water through a separation process calle

d
Chemistry
1 answer:
Pachacha [2.7K]2 years ago
7 0
Absorption distillation floatation filtration
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Which type of hybridization is observed when central atom is located at the centre of regular tetrahedron
Ann [662]

Answer:

sp3 hybridization

Explanation:

Hybridization means the mixing of atomic orbitals to yield hybrid orbitals with characteristics that are different from that of the isolated atomic orbitals before the combination.

sp3 hybridization occurs when one s orbital is mixed with three p orbitals to yield four sp3 hybrid orbitals which can be used to bond to a central atom.

The central atom is then located at the center of a regular tetrahedron at a bond angle of 109°.

3 0
2 years ago
If an atom with a mass of 47 amu has 22 neutrons, what atom is it?
LenaWriter [7]

Answer:

Manganese

Explanation:

At Mass - No neutrons = Atomic Number = #protons in nucleus

47 - 22 = 25 => At. No. 25 is Manganese (Mn)

7 0
2 years ago
Choose an organism that you are familiar with, and explain how the three parts of the cell theory relate to the organism
jek_recluse [69]
Organism: Apple
All cells from the apple come from cell division occurring from the apple in order for it to grow. 
An apple has multiple cells
The small living part in an apple is a cell thus showing that cells are the basic living unit.
6 0
2 years ago
Read 2 more answers
A laboratory instructor gives a sample of amino-acid powder to each of four students, I, II, III, and IV, and they weigh the sam
Dovator [93]

According to the calculation, set I is both the most accurate and most precise.

Exactness is a quality or state of being precise. 2a: comparison accuracy sense: the degree of precision with which an action is carried out or a measurement expressed 2b. The novel was fact-checked for historical authenticity. 2a: conformance to truth, to a standard, or to a model: exactness It is impossible to estimate the number of casualties with accuracy. Let's calculate the precision for the fourth set, consideringAV_I_V=8.56g

Δ1 = ∣(8.41−8.56)∣ g=0.15 g

Δ2 = (8.72−8.56) g=0.16 g

Δ3 = ∣(8.55−8.56)∣ g=0.01 g

Therefore: \triangle_I = \frac{\triangle1+\triangle2+\triangle3}{3} = 0.107g

Learn more about accuracy and precision here:

brainly.com/question/28289139

#SPJ4

5 0
1 year ago
Why are changes in phase physical changes?
ehidna [41]
Weathering and chemical substance weathering
3 0
3 years ago
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