There are 2 moles of aluminum metal that is needed to produce 3.33 moles of aluminum chloride
Answer:
Dark matter also called baronic matter is the matter that makes up 27% of the universe.
In 1933 it was determined as that mass that cannot be seen, that is, the non-visible mass of outer space.
Dark matter also plays a central role in the formation of structures and the evolution of galaxies and has measurable effects on the anisotropy of cosmic microwave background radiation. The composition of this matter is unknown today.
The dark matter component has considerably more mass than the "visible" component of the Universe.
Explanation:
There are certain researchers who say that the appearance of dark matter was before the appearance of the big bang.
A relevant fact of this matter is that dark matter exerts gravity, and that gravity affects the movements of objects.
Despite the fact that nothing is known about its origin, astronomers have amply demonstrated that dark matter plays a determining role in the formation of galaxies and galactic clusters, which could not maintain their cohesion without its existence, but many doubt that it is the remainder / remnant or product of a big bang.
Answer:
19.3 g/cm³
Explanation:
Mass = 965 g; volume = 50 cm³. So,
p = 19.3 g/cm3
V√3=3.6840315cm :))
Taking into account the definition of speed, you get that the average speed of the runner is 7.27 .
It is necessary to know that speed is a physical quantity that expresses the relationship between the space traveled by an object and the time used for it.
In other words, speed can be defined as the amount of space traveled per unit of time with which a body moves and can be calculated using the expression:
In this case:
Replacing these values in the speed definition:
Solving:
Speed= 7.27
In summary, the average speed of the runner is 7.27 .
Learn more about average speed:
Answer: 7.27 m/s
Explanation: The average speed of an object in an interval of time is the distance traveled by the object divided by the duration of the interval.
Distance traveled= 100 m
Time taken = 13.75 s
Average speed=
Average speed=
B. Atoms of every element except hydrogen
C. Atoms of every element
D. Atoms of every element except carbon and hydrogen
Answer:
Atoms of every element are shown in a skeletal model of an organic molecule.
Explanation:
Skeletal model of an organic molecule consists of various skeletal atoms that are used in making up of the molecule. Various conventions of hydrogen and carbon atoms are employed in it. The molecules bonding and certain representation of molecular geometry are shown in the structural formula.
Use of skeletal formula is ubiquitous in organic chemistry. Thus, in organic chemistry atoms of every element are shown in the skeletal model of an organic molecule