Answer:
I think its epicenter
Explanation:
The epicenter is the point on the earth's surface vertically above the hypocenter, point in the crust where a seismic rupture begins.
what is avogrados number and why is it useful
Answer:
Avogadro's number is 6.022×1023 molecules. With Avogadro's number, scientists can discuss and compare very large numbers, which is useful because substances in everyday quantities contain very large numbers of atoms and molecules.
please mark Brainliest if it helps!
A sealed balloon containing 0.51 L of air is carried from Toronto (P-1.01 atm) to Whistler (P=0.78 atm). What would the volume of the bag be in L) upon arrival in Whistler ?
Assume constant temperature and ideal gas behaviour.
Write your answer with 2 significant figures. Enter the number only - do not enter units.
The volume of the bag would be in (L) upon arrival in Whistler : 0.66
Further explanationBoyle's Law
At constant temperature, the gas volume is inversely proportional to the pressure applied
[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]
V₁=0.51 L
P₁=1.01 atm
P₂=0.78 atm
[tex]\tt V_2=\dfrac{P_1.V_1}{P_2}\\\\V_2=\dfrac{1.01\times 0.51}{0.78}\\\\V_2=0.66[/tex]
What is bonding all about in chemistry?
Answer:
It is like about a attraction between atoms, molecules, and more.
How do other factors shape earths surface
Answer:
Other factors shape earths surface are:
Factors that Shape Earth's Surface.
Unit Notes.
Plate Tectonics. Continental Drift. ...
Results of plate movement. ...
Weathering. ...
Erosion and Deposition.
NH3(aq) + HNO3(aq) → NH4NO3(aq) Calculate the volume of an acid (1.5 M HNO3) needed to neutralize the 1.5 M HNO3.
Answer:
NH3(aq) + HNO3(aq) → NH4NO3(aq) Calculate the volume of an acid (1.5 M HNO3) needed to neutralize the 1.5 M HNO3.
Explanation:
A 3.74-L cylinder contains 4.17 g of methane, CH4, at a pressure of 3020 mmHg. What is the temperature of the gas
Answer:
T = 694 K
Explanation:
Given the following data:
V= 3.74 L
mass = m = 4.17 g
P = 3020 mmHg x 1 atm/760 mmHg= 3.97 atm
We use the ideal gases equation to calculate the temperature (T):
PV= nRT ⇒ T= PV/nR
We calculate n (number of moles of methane gas) by dividing the mass into the molar mass of methane (CH₄):
molar mass(CH₄) = MM = (1 x 12 g/mol)+ (4 x 1 g/mol) = 16 g/mol
n = m/MM= 4.17 g/(16 g/mol)= 0.261 mol
Finally, we calculate T:
T= PV/nR = (3.97 atm x 3.74 L)/(0.261 mol x 0.082 L.atm/K.mol) = 694 K
After burning your candle for a few hours you and your friend notice that it's mass has decreased. Your friend claims that the mass "disappeared". Why do you know he is wrong (Hint: it's a Scientific Law)? What actually happened to the mass? What form is that mass in now? What is this process called?
Answer:
The law of conversion of mass is a scientific law that says that mass or matter can not be created or destroyed like energy but changes its form in a different type of state. So, by the law of conversion of mass, you can say that mass is not disappeared but change in different forms of states of matter like gas, soot, or melted residues of candle and ash of thread.
Due to this, the mass of the solid or waxy state due to burning changes to gas released by burning and residue of wax that will be equal to the mass of the original mass.
nitrogen and phosphorus would form what kind of bond
Answer:
The size of a phosphorus atom also interferes with its ability to form double bonds to other elements, such as oxygen, nitrogen, and sulfur. As a result, phosphorus tends to form compounds that contain two P-O single bonds where nitrogen would form an N=O. double bond.
Explanation:
a sample contains 4.0x10^25 molecules of hydrogen peroxide (H2O2) how many hydrogen atoms would be in the sample?
Which properties of plastics are useful in transporting food and drink?
Answer:
mark me brainlist plzzzzzzzzzzzzzz
Explanation:
Answer: In plastic, particles are very much tightly packed ,so food and drink kept in it do not get spoiled easily and its contact with environment gets cut off. So it is useful in transporting food and drink.
What type of reaction is FeS + 2HCl àFeCl2 + H2S?
Answer: 3 4 a noodles
Explanation: just is[tex]\lim_{n \to \infty} a_n \lim_{n \to \infty} a_n \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \sqrt{x} x^{2} x^{2}[/tex]
The elements fluorine (F), chlorine (Cl), and iodine (I) are all part of the same _________on the periodic table.
Explanation:
The elements Fluorine (F),Chlorine (Cl) and Iodine (I) are all part of the same Group ( i.e, Group 17 ) on the periodic table.
Answer:
Group
Explanation:
In the passage, you read about Dalia Kirschbaum, a geomorphologist. In her work, she uses weather data collected
by NASA satellites to study which events?
Answer:
Landslides
Explanation:
Answer:
Landslides
Explanation:
Correct on edge
During a chemical reaction, heat is absorbed. What kind of reaction occurred?
A)
An endothermic reaction
B)
An exothermic reaction
Answer:
b
Explanation:
How many electrons are in the nucleus of an atom with an atomic number of 7?!!
What does Radiation mean
Answer:
the emission or transmission of energy in the form of waves or particles through space or through a material medium.
The picture shows to containers filled with a gas, both initially at room temperature
AAA
Ice
Heat
Which statement is correct? (5 points)
The gas particles in both containers have the same average kinetic energy because they have equal number of particles
The gas particles in both containers have the same average kinetic energy because they have the same volume
The average kinetic energy of the gas particles is greater in container A because it has a lower temperature
The average kinetic energy of the gas particles is greater in container 8 because its particles move faster
Od
Answer:
D. The average kinetic energy of the gas particles is greater in container B because its particles move faster.
Explanation:
Option D is the correct statement. From the excerpt, it can be seen that container B is being heated. The heat that is applied to container B will make the temperature of the gas to increase, thereby increasing the average kinetic energy. This will cause the gas molecules to mover faster and with force hitting the walls of the gas container. At this time, pressure should increase. Also, the volume of the gas increases just as the temperature of the gas also increases.
Answer:
D. The average kinetic energy of the gas particles is greater in container B because its particles move faster.
Explanation:
which of the following is not a method of separating the components of mixture
A.) filtration
B.)decantation
C.)stiring
D.)evaporation
Answer:
stiring
Explanation:
Because in the process of stiring components mix together not separate.
hope u got it
What is and ionic bond and how it forms and why it forms
During a chemical reaction, heat is absorbed. What kind of reaction occurred?
A) An endothermic reaction
B) An exothermic reaction
Answer:
Endothermic and exothermic reactions are chemical reactions that absorb and release heat, respectively. A good example of an endothermic reaction is photosynthesis. Combustion is an example of an exothermic reaction. The categorization of a reaction as endo- or exothermic depends on the net heat transfer.
Explanation:
Answer:
An endothermic reaction
Explanation:
The heat is being absorbed so it's and endothermic reaction
Whats the answer giving brainliest have a good day lol help
Answer: i would say north pole because the sunlight has to change directions to reach it if that makes since
Explanation: sorry if im wrong
What does it mean when someone has done multiple trials? A. They have performed an experiment once and reported their findings. B. They have performed a scientific experiment more than once. C. They have performed an experiment that can only be performed once. D. They have designed an investigation to answer a question.
A. They have performed an experiment once and reported their findings.
Electromagnetic Waves can propagate (move through);
Answer:
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
Explanation:
Help!!!!
A termplate of a Venn diagram representing common and differentiating characteristics of covalent and ionic bonds is
shown.
lonic
Bond
Covalent
Bond
A
C
Which of the following characteristics can be written only in space B?
O Occurs in substances that have at least one non-metal
O Occurs in substances that have a repeating lattice structure
O Occurs in substances that have discrete molecular structure
O Occurs in substances that have high melting points
Answer: it ISNT occurs in substances that have discrete molecular structure
Explanation:
I took the test
The characteristics that can be written only in space B is they occur in substances that have at least one non-metal. The correct option is A.
What is ionic and covalent bond?Ionic bonds are formed when two electrically charged elements shred their charged ions. Covalent bonds are formed when there is a mutual sharing of electrons between the atoms.
One condition that is similar in both is both bonds needed one non-metal to form the bond.
Thus, the correct option is A, which occurs in substances that have at least one non-metal.
Learn more about the ionic and covalent bonds, here:
https://brainly.com/question/12663276
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6.
What volume does 14.0 g of Hydrogen gas (Hz) take up at a temperature of 30°C and a pressure of 120 kPa?
Note: Use Ideal gas law. R=8.31 (kPa x L)/(mol x K)
Answer:
V = 146.87 L
Explanation:
Given data:
Mass of sample = 14.0 g
Pressure of sample = 120 kpa
Volume of gas = ?
Temperature of gas = 30°C
Solution:
Number of moles of gas:
Number of moles = mass/molar mass
Number of moles = 14.0 g/ 2 g/mol
Number of moles = 7 mol
Pressure of gas:
PV = nRT
P= Pressure
V = volume
n = number of moles
R = general gas constant = 8.31 KPa.L/ mol.K
T = temperature in kelvin
Now we will convert the temperature.
30+273 = 303 K
by putting values,
120 KPa × V = 7 mol × 8.31 KPa.L/ mol.K × 303 K
V = 17625.51 KPa .L/ 120 KPa
V = 146.87 L
The compound with the molecular formula C4H10 is called
Answer:
butane
Explanation:
I hope this helps!
Answer:
Butane
...............
When zinc and HCl are reacted, the product is hydrogen gas. You can measure the reaction rate by measuring what?
PLEASE HELP ME
Answer:
measuring the consumption of the products and the rate of conversion of products to reagents
Explanation:
It must be taken into account that the reaction rate also depends on the presence of a catalyst, since these advance the rate of the reaction.
Suppose a species of snake is living in a certain area. Some of the snakes in the population are black and some are orange. Over time, the area changes and the orange snakes have a harder time blending into the environment. This makes it difficult for the orange snakes to catch food.
According to Darwin’s theory of evolution, what will most likely happen to this snake population over time?
Most orange snakes will survive and reproduce, passing on their traits to their offspring. Few black snakes will remain in the population.
Most black snakes will survive and reproduce, passing on their traits to their offspring. The number of orange snakes in the population will not change.
The black snakes will survive and reproduce, passing on their traits to their offspring. Few orange snakes will remain in the population.
Most orange snakes will survive and reproduce, passing on their traits to their offspring. The number of black snakes in the population will not change.
Answer:
The black snakes will survive and reproduce while the orange snakes die out.
Explanation:
The orange snakes will be easier to see by their prey and predators, and therefore will die out while the black snakes thrive because of their camouflage.
Answer:
the black snakes will survive and reproduce, therefore, passing their traits to their offspring, while few orange snakes will remain in the population.
Explanation:
1.Which is the largest atom in Group 1?
2.Which is the smallest atom in Group 15
3.Which is the smallest atom in period 5?
4.Which is the largest atom in Period 4?
What is the nuclear charge of an atom of Silver?
A) +79
B) +47
C) +108
D) +61
Answer:
47 is your correct ans, which is b