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schepotkina [342]
2 years ago
7

Difference between practical work inside and outside laboratory​

Chemistry
1 answer:
arsen [322]2 years ago
5 0

Practical work refers to the art of conducting experiments in order to answer certain research questions.

<h3>What is practical work?</h3>

In science, practical work refers to the art of conducting experiments in order to answer certain research questions. This could occur in a laboratory under controlled conditions or in the field.

In the physical sciences, most of the practical work is conducted in the laboratory under controlled conditions. However, some experiments in the biological sciences and most experiments in the social sciences are conducted outside the laboratory.

Learn more about experiments:brainly.com/question/11256472

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Ethanol (c2h6o) is a common intoxicant and fuel produced from the fermentation of various grains. how many moles of ethanol are
Lynna [10]
n = m / M

Where, n is moles of the compound (mol), m is the mass of the compound (g) and M is the molar mass of the compound (g/mol)

Here, the given ethanol mass = 50.0 kg = 50.0 x 10³ g

Molar mass of the ethanol = (12 x 2 + 1x 6 + 1 x 16) g/mol
                                          = 46 g/mol

Hence, moles in 50.0kg of ethanol = 50.0 x 10³ g / 46 g/mol
                                                        = 1086.96 mol
3 0
3 years ago
Is CIF ionic or covalent?
butalik [34]

Answer:

Covalent

Explanation:

Chlorine monofluoride (ClF) is a chemical compound, and the atoms are connected by a single covalent bond.

6 0
2 years ago
I NEED HELP PLZZZZ!!! THANK YOUUUU If an individual proton has mass 1.007825 amu and an individual neutron has mass 1.008665 amu
Drupady [299]

Answer:

1.38269 amu

Explanation:

Gadolinium-157 has 64 protons and 93 neutrons. Recall that mass defect his the difference between the calculated mass and the actual mass of the atom. This difference in calculated mass and actual mass exists because some mass is converted to the binding energy of the nucleus.

Mass of 64 protons= 64 × 1.007825 = 64.5008 amu

Mass of 93 neutrons= 93 × 1.008665 = 93.805845 amu

Mass of neutrons and protons= 64.5008 + 93.805845 = 158.306645 amu

Mass defect= 158.306645 - 156.92396 = 1.38269 amu

Therefore, mass's defect of gadolinium-157 is 1.38269 amu

6 0
3 years ago
Atoms in a stay in a fixed position and have no freedom to move
dybincka [34]
A solid, but they are constantly vibrating
8 0
3 years ago
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Which resources are significantly polluted by heavy metals like mercury? A. soil B. water C. neither A nor B D. both A and B
Firdavs [7]

Answer: The correct answer is option D.

Explanation:

Mercury is occurs in earth crust but its mining ,combustion of fossil fuel and extraction had led to spreading of mercury pollution not only on lands but in air and water bodies also.  

Mercury settled on land get washed way into water bodies which further gets introduced in life process of living beings in the water and eventually effecting the whole food chain or web.

Hence, from the the given options the correct option is (D).

6 0
3 years ago
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