Answer:
The molecules in a dense object are tightly packed together
Explanation:
This happens because the closer molecules are the denser the object is, however, if they get too close it can be a very disastrous result and the compound becomes very unstable. Hope I could help! :)
Answer:
3) The salivary glands present in the mouth produces saliva
Answer:
0.138 J/g.K
Explanation:
According to the law of conservation of energy, the sum of the heat released bt he mineral and the heats absorbed by the water and the calorimeter is equal to zero.
Qm + Qw + Qc = 0
Qm = - Qw - Qc [1]
The heat absorbed by the calorimeter can be calculated using the following expression.
Q = C . ΔT
where,
C is the heat capacity
ΔT is the change in temperature
The heat released by the mineral and the one absorbed by the water can be calculated using the following expression.
Q = c . m . ΔT
where,
c is the specific heat capacity
m is the mass
ΔT is the change in temperature
Replacing in [1],
A. Smell (Oder) B. Color and D I’m pretty sure because the common properties are Color, Oder, Melting point, and boiling point
According to Avogadro's Law, same volume of any gas at standard temperature and pressure will occupy same volume. And one mole of any Ideal gas occupies 22.4 dm³ (1 dm³ = 1 L).
Data Given:
n = moles = ?
V = Volume = 16.8 L
Solution:
As 22.4 L volume is occupied by one mole of gas then the 16.8 L of this gas will contain....
= ( 1 mole × 16.8 L) ÷ 22.4 L
= 0.75 moles
Result:
16.8 L of Nitrogen gas will contain 0.75 moles at standard temperature and pressure.
