An object has a mass of 20 g and volume of 10 cm. Enter the numerical value for the density of the object in units of g/cmº
Answers
Answer:
density = 2g/cm³
Explanation:
density = mass/volume
mass = 20g
volume=10cm³
density=20g/10cm³
density = 2g/cm³
Final answer:
The density of the object is 2 g/cm³. This value expresses how much mass the object has per unit of volume, which in this case is cubic centimeters.
Explanation:
The density of an object is calculated by dividing its mass by its volume. In this case, the mass of the object is 20 g and its volume is 10 cm³. Therefore, the density of the object can be calculated as follows: density = mass/volume = 20 g/10 cm³ = 2 g/cm³.
This value implies that this object has 2 grams of mass per cubic centimeter of volume. This is a commonly used unit of density in physics for measuring small objects. A higher density usually indicates that an object is more compact or has more mass relative to its volume.
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Answers
number of moles
volume and moles of gas
pressure and temperature
Answers
Given from the combined gas law that PV/T = k, there, therefore, the number of moles of the gas is constant.
What is the combined gas law?
According to the combined gas law, the product of the pressure and volume divided by the temperature is a constant. That is; PV/T = k
Looking at this statement we can see that the implied assumption in this law is that the number of moles of the gas is constant.
Learn more about gas law:brainly.com/question/13805601?
Answer:
number of moles
Explanation:
I believe this is the right one :)
Answers
Here are the following choices:
A. The accepted model of the atom was changed.
B. The accepted model of the atom was supported.
C. Cathode ray tubes were no longer used in experiments due to poor results.
D. Cathode ray tubes became the only instrument of use in the study of atoms
lava and soil
magma and silt
sand and lava
Answers
Answer:
suck dryeeeeeeeeeeeeeeeeeeeeeeeeeeeewwkkffjfkv3kmc,kflr
Explanation:
Answers
Considering the Charles' Law, the volume increases from 400 mL to 410.85 mL as the temperature increases from 22.0 °C to 30.0°C.
Charles' Law
Charles' Law consists of the relationship that exists between the volume and the temperature of a certain amount of ideal gas, which is maintained at a constant pressure.
For a given sum of gas, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. This is, the volume is directly proportional to the temperature of the gas:
In summary, Charles' law is a law that says that when the amount of gas and pressure are kept constant, the ratio between volume and temperature will always have the same value:
Studying two different states, an initial state 1 and a final state 2, it is fulfilled:
Volume change
In this case, you know:
- V1= 400 mL
- T1= 22 C= 295 K (being 0 C= 273 K)
- V2= ?
- T2= 30 C= 303 K
Replacing in the Charles's law:
Solving:
410.85 mL= V2
Finally, the volume increases from 400 mL to 410.85 mL as the temperature increases from 22.0 °C to 30.0°C.
Learn more about Charles's law:
T₁ = 22.0ºC + 273 = 295 K
V₂ = ?
T₂ = 30.0ºC + 273 = 303 K
V₁ / T₁ = V₂ / T₂
400.0 / 295 = V₂ / 303
295 x V₂ = 400.0 x 303
295 V₂ = 121200
V₂ = 121200 / 295
V₂ = 410.84 mL
hope this helps!
Answers
The best method to improve air quality? I'm going to do indoor. :P
•Circulate, Circulate
•Renovate Wisely
•Filter Refresher
•Common Scents
•Clean