Answer:
V1 = 3.09 L
Explanation:
Initial Pressure, P1 = 15.6 psi
Initial Volume, V1 = ?
Final Pressure, P2 = 25.43 psi
Final Volume, V2 = 1.895 L
The relationship between these quantities is given by boyles law;
V1P1 = V2P2
V1 = V2P2 / P1 = 1.895 * 25.43 / 15.6
V1 = 3.09 L
Calculate the average atomic mass for an imaginary element "E" that has the following isotope abundances:
56.67 % E-102.658 amu
43.33% E-104.770 amu
Answer:
Average atomic mass of E = 103.57 amu
Explanation:
Given data:
Average atomic mass of E = ?
Abundance of E-102.658 = 56.67%
Abundance of E-104.770 = 43.33%
Solution:
Average atomic mass of E = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass of E = (56.67×102.658)+(43.33×104.770) /100
Average atomic mass of E = 5817.63 + 4539.68 / 100
Average atomic mass of E = 10357.31 / 100
Average atomic mass of E = 103.57 amu.
which phrase best defines the term energy
Answer:
theres no options?
Explanation:
A fixed mass of oxygen gas occupies 300cm cube at 0 degree centigrade. what volume would the gas occupy at 15 degree centigrade
Answer:
hey
Explanation:
3. Why have we not been able to create a fusion reactor on Earth?
Answer:
We are not able to create a fusion reactor on Earth because fusion energy production is not based on a chain reaction, as is fission. Plasma must be kept at very high temperatures with the support of external heating systems and confined by an external magnetic field.
Explanation:
PLEASE HELP WILL MARK BRAINLEST!
Which of these elements does not take an electron from an s orbital?
Hey can someone please help me with this
Answer:
This is not a redox reaction.
Explanation:
A redox reaction is a reaction that involves reduction and oxidation processes. The best way to identify a redox reaction. Changes in the oxidation number f the species indicates that it is a redox reaction.
Na+
Reactant side = +1, Product Side = +1; No change
Cl-
Reactant side = -1, Product Side = -1; No change
Ag+
Reactant side = +1, Product Side = +1; No change
N
Reactant side = +5, Product Side = +5; No change
O
Reactant side = -2, Product Side = -2; No change
There is no change in any of the oxidation numbers, Hence this is not a redox reaction.
What type of substance is reactant A?
Answer:
A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.
Explanation:
How many moles are 3.21x10^28 moles of N2
Answer:
number of moles =
[tex]53.3 \times 10 {}^{3} mol[/tex]
Explanation:
here's the solution in attachment.
Will the energy released in the synthesis of water equal the energy absorbed in the decomposition of water?
Answer:
yes
Explanation:
the energy released in the synthesis of water is equal to the energy absorbed in the decomposition of water. This outcome happens because the difference in energy between the reactants and the products in both cases is equal. . It follows the law of conservation of energy.
PLZ I NEEEEEEEDDDDDD HELP
Answer:
2h+02=h20
Explanation:
2 in front of h on left side
2 in front of h on right side
Answer:
Explanation:
1. __1___ Fe + __1___ S → __1___ FeS. 2. __1___ H2 + __1___ Cl2 → __2___ HCl. 3. __2___ Mg + __1___ O2 → __2___ MgO. 4. __1___ O2 + __2___ H2
Give an example of an object that has potential energy
Answer:
A book on a shelf
Explanation:
What does the pattern in the image above represent?
OA. the phases of the Moon
OB. the patterns of the stars
OC. the seasons of the year
OD. the cycle of the Sun
Answer:
i dont know how to answer this because u need a pic of what you need
Explanation:
sorry just need a picture to confirm answer
In this activity, you will plan and conduct an investigation to compare a single property
across several substances. You must select a measurable property, such as boiling point or surface tension. After your investigation, you will compare the results and use your data to make inferences about the strength of the electrical forces in each substance you tested.
What is meant by the term specific heat?
Answer:
the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).
What is the mass of 14.4 moles Fluorine?
0.379g
274.8
1.32 g
2.64g
547 g
Answer:
D
Explanation: d
Answer:
547g
Hope i could help ;)
Calculate the atomic mass of oxygen if the three common isotopes of oxygen have masses of 15.995 amu (99.759% abundance), 16.995 amu (0.037 % abundance), and 17.999 amu (0.204 % abundance).
Answer:
16 amu
Explanation:
PLS HELPPPPPPPPPPPPP
Answer:
3. Structural features
SnBr2
what is the name of this formula?
Describe the difference between ionization energy and electron affinity in terms of atomic structure.
Answer:
Please refer below to the attached file
Hope it helps
Please mark me as the brainliest
Thank you
True/False: Atoms of the same elements have different properties
Answer: True
Explanation:
A 7.3 kg Bowling Ball accelerates at a rate of 3.7 m/s2. What is the Force acting on the ball?
Balance the chemical equation. Based on the equation, how many grams of bromine are produced by the complete reaction of 11 grams of potassium bromide?
Answer:
Explanation:
The balanced chemical equation is Cl2 + 2KBr → 2KCl + Br2. The amount of bromine is calculated as follows:
11.0 g KBr (1mol KBr/119.002g KBr * 1mol Br2/2mol KBr * 159.808g Br2/1mol Br2= 7.39 g Br2.)
How old is the earliest ancestor of the Clarinet?
Answer: I believe 1838
Explanation:
Answer:
1838 is the correct answer, hope this helped
Which element is a poor conductor of heat?
A. F
B.K.
C. Fe
D. Ag
The diagram illustrates the water cycle.
Parts of the water cycle labeled U through Z. U: Water moving from a lake into the clouds. V: Clouds. W: Water falling from clouds as rain and snow. X: Water moving from ground to the clouds. Y: Water flowing down the mountainside into a lake. Z: Underground water going into lake.
Which process occurs at location W?
precipitation
evaporation
condensation
transpiration
Answer:
The Answer is Precipitation
Explanation:
Look it up on and then also got it right on the Unit Test and the Quiz.
The diagram illustrates the water cycle, the process that occurs at location W is precipitation. The correct option is a.
What is precipitation?Precipitation is any product of the condensation of atmospheric water vapour that falls under gravitational pull from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail.
Precipitation occurs when a portion of the atmosphere becomes saturated with water vapour so that the water condenses and precipitates or falls. Thus, fog and mist are not precipitation but colloids, because the water vapour does not condense sufficiently to precipitate. Two processes, possibly acting together, can lead to air becoming saturated: cooling the air or adding water vapour to the air. Precipitation forms as smaller droplets coalesce via collision with other raindrops or ice crystals within a cloud. Short, intense periods of rain in scattered locations are called showers.
Precipitation is a major component of the water cycle and is responsible for depositing the fresh water on the planet.
Learn more about precipitation, here:
https://brainly.com/question/18109776
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The liver is a group of tissues that produce bile that is used to break down fats. The liver is a(n) _____.
Answer:
Its food for cannibals.
What is needed to release the energy in a bond?
High temperatures
An electro-magnetic force
A fast moving electron
More energy
 Can anybody help it 8th grade science about the sun
Answer:
The sun is at the (edge) of our solar system
and is much (hotter) than anything else in the solar system (95%) of the entire mass of the solar system is contain in the sun
Helppp me plzzzzz!!!
Answer:
they use echos to communicate
Explanation: dolphins make echos in order to signal there partners, and others in there pod. or they can use it to signal for prey, or signal that they are in trouble.
Answer: A good example for this one is bats.
Explanation: While a couple of bats are known to emanate the beats through their nose, most bats will in general express them. The recurrence is estimated to be around 200 heartbeats each second, nonetheless, the time frame can fluctuate with the types of a bat. Credits: Adi Ciurea/Shutterstock A bat's squeaks are more rewarding than Ben's on the grounds that with higher recurrence comes higher-goal or more distinctive detail – they are equipped for evading deterrents no more extensive than a human hair! They use it to find and explore towards prey, for example, a hurrying bug. As the distinguished sound waves that structure the pictures are basically echoes, they should adjust to a standard — the recovered train of heartbeats should be sufficiently noisy to get back to the sender, yet short sufficient with the end goal that the reverberation of the sender returns before the following one withdraw.
2. Hydrogen and Nitrogen
a. What kind of bond will form?
Answer:
A covalent bond
hope this helps!