The volume of a 155-gram sample of mercury is 11.397 mL if the density of mercury is 13.6 g/mL.
It is defined as the mass-to-volume ratio. The density indicates the object's density and is represented by the symbol. The density is measured in kilograms per cubic meter.
It is given that:
The density of mercury is 13.6 g/mL.
The mass of the mercury is 155 grams.
As we know,
Volume can be defined as a three-dimensional space enclosed by an object or thing.
The density = mass/volume
13.6 = 155/volume
volume = 155/13.6
volume = 11.397 mL
Thus, the volume of a 155-gram sample of mercury is 11.397 mL if the density of mercury is 13.6 g/mL.
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B. only a S pole
C. both a N and S pole
D.neither a N nor a S pole
Answer:
I guess it was C.both a N and S pole...
Comment if I was wrong.
The comparison that would be best is;
They are in the same group because they have similar chemical properties, but they are in different periods because they have very different atomic numbers.
Answer:
24.8 km per second
Explanation:
Explanation:
A specie with no charge and containing one or more number of unpaired electrons is known as a free radical.
These free radicals tend to attain stable configuration by gaining an electron from another atom. Hence, they fill their outer energy levels.
For example, a free radical of chlorine will readily combine with a hydrogen atom in order to attain stability and it leads to the formation of a new chemical bond between the hydrogen and chlorine atom.
As a result, it will form a hydrogen free radical.
Thus, we can conclude that free radical is a highly reactive chemical species with one or more unpaired electrons.
A free radical is a highly reactive chemical species with one or more unpaired electrons. They actively participate in chemical reactions due to their need to complete their electron shell. These radicals can be both harmful and beneficial, depending on their context.
A free radical is a highly reactive chemical species with one or more unpaired electrons. These species are reactive because they seek to complete their electron shell by forming pairs, making them eager to engage in chemical reactions.
For instance, in combustion processes, free radicals like hydroxyl (OH) play a crucial role. Despite their reputation for causing damage in biological systems, free radicals are also beneficial as they are used by the immune system to neutralize pathogens.
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10 m/s, northwest
14 m/s, northwest
48 m/s, northwest
The correct answer to the question is : 10 m/s , northwest.
EXPLANATION:
As per the question, the velocity of wind V = 8 m/s towards north.
The velocity of the paper airplane is V' = 6 m/s towards west.
We are asked to calculate the actual velocity of the airplane.
By putting Pythagorean theorem, the actual velocity of the airplane is calculated as -
⇒
⇒
⇒
⇒ towards northeast.
Hence, the correct answer is 10 m/s , northwest.