They are unicellular organisms with flagella.
They do not have a cell wall.
They have a thick outer covering, known as pellicle, that is composed of protein and gives them both strength and flexibility.
They are eukaryotes.
Answer:
183.6kg
Explanation:
Given parameters:
Specific heat of the substance = 0.246J/g°C
Change in temperature = 15.5°C
Amount of energy released = 700J
Unknown:
Mass of the sample = ?
Solution:
To solve this problem we used the energy equation:
H = m c Δt
H is the energy released
m is the unknown mass
c is the specific heat
Δt is the change in temperature
Now insert the parameters and find m;
700 = m x 0.246 x 15.5
700 = 3.8m
m = 183.6kg
Answer:Valence Shell
Explanation: The Valence Shell is the outermost orbital of an atom. The Valence Shell electrons are used in making chemical bonds and are the reason the atom has its physical and chemical properties.
Answer:
0.324 mole of sodium
Explanation:
From the question given above, the following data were obtained:
Volume of sodium = 7.25 L
Number of mole of sodium =..?
The number of mole of sodium that occupies 7.25 L can be obtained as follow:
22.4 L = 1 mole
Therefore,
7.25 L = 7.25 L × 1 mole / 22.4 L
7.25 L = 0.324 mole
Therefore, 0.324 mole of sodium is present in the container.