Answer:
It is an exothermic reaction.
Explanation:
Why? Since the kJ is added to the product side, we know that this is an exothermic reaction since it is releasing heat. Endothermic reactions absorb heat and thus it would be represented on the products side.
To represent this exothermic reaction we would draw a curve starting mid graph then it goes up and then dropsdown. In other words, it looks downhill since it's releasing heat wheras an edothermic rxn, it is gaining heat, thus it looks like it is going upwards.
It states the fact, which we now know, that electrons are responsible for the chemical bonding. According to this theory, valency is the number of electrons present in the outermost energy shell of the atom. This energy shell is called valency shell.
The electrons located in the valence shell of an atom are responsible for forming chemical bonds by sharing, donating or accepting electrons.
The parts of the atom responsible for chemical bonding are the electrons, which are located in the outermost shell of the atom, also known as the valence shell. These electrons can be shared, donated, or accepted to form chemical bonds with other atoms. For example, in a covalent bond, electrons are shared between atoms. In contrast, in an ionic bond, electrons are transferred from one atom to another, creating ions that are attracted to each other and form a bond.
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V equals one-third times pi times r squared times h
V = s3
V = πr2h
Answer: Option 1 --- V equals four-thirds times pi times r cubed
Explanation:
Answer
its B
Explanation:
B.
Nuclear energy produces little air pollution.
Answer:
A visible streak of light that shows the path of a rocky object which has entered Earth’s atmosphere is Meteor.
Explanation:
Meteors are the dust and ice originated from the trails of comets. They are the rocks present in the space, the visible bright streak is not from the rock, rather from the glowing hot air because of the hot rock zips from the atmosphere. When large number of the meteoroids strikes the Earth at one time is called meteor shower. It is the open- source isomorphic rocks. These are visible from the one point in the dark sky. These happens due to the masses of cosmic debris known as meteoroids which are coming inside the Earth's atmosphere at extremely great speed on parallel trajectories.
A)0.167 atm
B)0.437 atm
C)0.886 atm
D)149 atm
Answer:
The new pressure is 0.167 atm
The correct answer is option A
Explanation:
Step 1: Data given
Volume of the gas = 22.4 L
Pressure of the gas = 0.265 atm
The volume increases to 35.52 L
Step 2: Calculate the new pressure
P1*V1 = P2*V2
⇒with P1 = the initial pressure = 0.265 atm
⇒with V1 = the initial volume = 22.4 L
⇒with P2 = the new pressure = TO BE DETERMINED
⇒with V2 = the increased volume = 35.52 L
0.265 atm * 22.4 L = P2 * 35.52 L
P2 = (0.265 atm * 22.4 L) / 35.52 L
P2 = 0.167 atm
The new pressure is 0.167 atm
The correct answer is option A