Answer:
C. photosynthesis
Explanation:
b. diamond
c. fullerene
d. coal
The allotrope of carbon that is used in lubricants, sporting goods, and aircraft is graphite. The answer is letter A. Graphite is a good conductor of heat and is very soft. The layers of lattice of each are bound to the adjacent layers by weak Van der Waals forces which allow the layers to slide over one another easily.
What did Bohr’s model of the atom include that Rutherford’s model did not have?
The answer is energy levels
Answer:
sulfuric acid
Explanation:
Sulfuric acid is a strong electrolyte.
- Strong electrolytes dissolve completely in water.
Acetic acid and Ammonia is a weak electrolyte.
- Weak electrolytes only partially dissolve in water.
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Answer:
sulfuric acid
Explanation:
Compare and contrast the eukaryotic and prokaryotic cells. They have several features in common but they also differ in several ways. The two cells share All BUT ONE feature. Select the one way these two cells differ.
Question 23 options:
contain DNA
enclosed in protein capsule
undergo cellular respiration
produce proteins in ribosomes
Answer: number 1
Explanation:
A sample of seawater has a mass of 158g and a volume of 156mL. its density is 1.012 g/mL.
According to the question the data are given is as follows:
volume of sea water = 156 mL
mass of sea water = 158 g
density of sea water can be calculated by the following formula :
D = M / V
where,
D = density
M = mass of sample
V = volume of sample
substituting all the value in the given formula , we get :
D = 158 g / 156 mL = 1.012 g/mL
Density of seawater = 1.012 g / mL
Thus, A sample of seawater has a mass of 158g and a volume of 156mL. its density is 1.012 g/mL .
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