Answer:
The final pressure in the system is 731,4 mmHg
Explanation:
To solve the unknown we apply Boyle's Law for gases where keeping the amount of gas and temperature constant, the relationship between pressure and volume from one state to another is:
P1 . V1 = P2 . V2
(8,60L . 455mmHg) = P2 . 5,35L
(8,60L . 455mmHg) / 5,35 L = P2
731,40 mmHg = P2
Answer:
Name: Aluminum Sulfite
Explanation:
Systematic nomenclature: dialuminium tris [trioxosulfate (IV)]
Oxoanions: anions derived from removing H + from an oxo acid with a vulgar name:
(SO3)3^-2 (sulfite)
Metal cation according to valence number:
Al (III) or Al+3 (as a cation) (Aluminum)
There are different types of salts, in this case we have a simple salt and the nomenclature for binary substances is used when only one class of cation and one class of anion are present
So:
Al2(SO3)3: Aluminum Sulfite
Ions are charged particles that form when an atom (or group of atoms) receives or loses an electron, and ionic compounds are composed of these charged particles. An anion is a negatively charged ion, whereas a cation is a positively charged ion. Here Al₂(SO₃)₃ is aluminium sulfite.
Ionic compounds are defined as substances that are joined by ionic bonds. In order to reach their closest arrangement as a noble gas, elements can either gain or lose electrons. For the completion of the octet, ions are formed (either by gaining or losing electrons), which aids in their stabilization.
The name of the compound Al₂(SO₃)₃ is aluminium sulfite.
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b) alkyne
c) none of the above?
The location of earth in the solar system is found between Venus and Mars.
A solar system is the gravitational bound system comprising the sun and the objects aligned in the orbit revolving around the sun. The foundation of the solar system is mediated billions of years ago with the huge interstellar cloud collapse.
The planets are present in the orbit bounded by the gravitational force of the sun and revolve around it. Earth is the planet that is said to have only one having the five elements that support life namely. fire, air, water, soil, and space.
The solar system is comprised of 9 planets with the nearest to the sun being mercury, and the farthest being Pluto. Earth is arranged as the third planet from the distance from the sun and is located between Venus and Mars.
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The 10% energy rule means that when energy is passed into the ecosystem from one trophic level into the next, only ten percent energy will be passed on.
Given:
64.82 g of aluminum metal
100.0oC is cooled to 82.0 °C
specific heat of aluminum is 0.897 J /g °C.
Required:
Change in heat energy
Solution:
This can be solved through the equation H = mCpT where H is the heat, m is the mass, Cp is the specific heat and T is the change in temperature.
The specific heat of the water is 4.18 J/g-K
Plugging in the values into the equation
H = mCpT
H = (64.82) (0.897 J /g °C) (82 – 100)
H = -1,046.6 J
(B)Geiger counter
(C)mass spectrograph
(D)microbalance
(E)electron microscope
Mass spectrograph is an instrument which is used to determine the relative masses of atoms.
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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