The sulfur di-oxide may lower ais temperature after a volcanic eruption through volcano.
What is volcanic eruption?A volcanic eruption occurs when a volcano releases lava and gas, sometimes explosively. A 'glowing avalanche,' which occurs when newly erupted lava slides down the flanks of a volcano, is the most deadly sort of eruption.
What is volcano?A volcano is a crack in a planetary-mass object's crust that permits hot lava, volcanic ash, including gases to escape from just a magma chamber under the surface, such as Earth.
Volcanoes release a variety of gases along with particles into the atmosphere when they erupt. Because they reflect sunlight away from the earth, some of them, like ash and sulfur dioxide, have just a cooling effect. Others, such as CO2, contribute to global warming by increasing the greenhouse effect.
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7. Think and discuss: As you move down a group, you will recall that the radius increases.
Why do you think an increase in atomic radius would result in a lower
ionization energy?
8. Think and discuss: As you move across a period, you will recall that the radius decreases.
Why do you think a decrease in atomic radius would result in a greater ionization energy?
9. Predict: Electron affinity (EA) refers to the energy released when an electron is added to
an atom. This release of energy is always expressed as a negative value. The greater the
magnitude of the negative value, the greater the attraction for electrons. (An EA of -100
kJ/mol would indicate a stronger attraction for electrons than an EA of -50 kJ/mol.)
How do you think the size of an atom will affect its ability to attract additional electrons?
Answer:
See explanation
Explanation:
7. As we move down the group more shells are added. The addition of more shells means that the atom becomes larger and the outermost electron is now at greater distance from the nucleus and screening effect becomes very important. This greater screening effect of the inner electron reduces the magnitude of effective nuclear charge on the outermost electron thereby lowering the ionization energy.
8. As we move across the period, the effective nuclear charge increases without a corresponding increase in the number of shells. As a result of this, the outermost electron becomes more tightly bound to the nucleus as the atom becomes smaller and atomic radius decreases causing a rise in the ionization energy from left to right across a period.
9. Actually, the smaller an atom is the greater its electron affinity. The smaller the atom is, the more the outermost shell is drawn closer to the nucleus and this means that the atom is better able to attract electrons to itself.
It is due to the size of atom which varies its force of attraction.
As you move down a group, the atomic radius increases due to addition of more number of shells in an atom. This increase in atomic radius would result in a lower ionization energy because the valance electron is farther from the nucleus and held with weak attractive force so less energy is required to remove it.
While on the other hand, as we move from left to right in a periodic table the atomic radius decreases due to addition of more electrons which shrinks the atom and brought the valance shell closer to the nucleus so it becomes harder to remove an electron because the nucleus held these electrons very tightly.
The size of an atom will affect its ability to attract additional electrons because of its force of attraction. Atoms with small radius has more ability to attract electrons due to higher force of attraction as compared to higher atomic radius atoms.
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Which force is stronger? 40 N → or ← 4.218 Newtons
Answer:
40 Newtons
Explanation:
4.218 is not even close to 40 N.
The 40 N force must be the larger force because 40 has a larger magnitude than the 4.218.
Magnitude of a force?
The term magnitude has to do with how large the force is. The larger the force the larger the value that is mentioned.
This implies that the 40 N force must be the larger force because 40 has a larger magnitude than the 4.218.
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A 55.0 kg runner who weights 539.0 N is accelerating at 3.2 m/s. After 2 seconds, she reaches a speed of 6.4 m/s. What is her momentum at this point?
Answer:
352kg.m/s
Explanation:
Momentum is the product of mass and velocity. Momentum is a vector quantity. Momentum is the measurement of an object in motion thereby showing how much of the object is in motion. The formula of momentum (p) is given as:
p = mass * velocity
Given that the runner has mass of 55 kg, the momentum at a speed of 6.4 m/s is:
Momentum = mass * velocity = 55 * 6.4 = 352kg.m/s
Answer:352
Explanation:
A motorcycle starts at rest and moves a distance of 460m .
If it has constant acceleration of 4m55 m/s2 what is its final velocity
Answer:
The final velocity of the motorcycle is 64.7 m/s
Note: Since the value for the acceleration of the motorcycle is not clear, it is assumed to be 4.55 m/s² in the calculation
Explanation:
Using the equation of motion that contains all the given values in the question: v² = u² + 2as
where v is final velocity; u is initial velocity; a is acceleration; s is horizontal distance
v = ?, u = 0 (since the motorcycle starts from rest), a = 4.55 m/s², s = 460 m
v² = 0² + 2 * 4.55 * 460
v² = 4186
take square root of both sides
v = 64.7 m/s
Therefore, the final velocity of the motorcycle is 64.7 m/s
The reaction for the combustion of acetylene is shown. Explain why this reaction is a redox reaction by identifying the oxidation numbers that change, what is oxidized, what is reduced, and what happens to the electrons during the reaction. 2C2H2 + 5O2 → 4CO2 + 2H2O
Answer:
2 C2H2 (g) + 5 O2 (g) → 4 CO2 (g) + 2 H2O (l)
Explanation:
Redox reaction: In this type of reaction, oxidation and reduction reaction occurs simultaneously in same chemical reaction.
2C_2H_2+5O_2\rightarrow 4CO_2 + 2H_2O2C
2
H
2
+5O
2
→4CO
2
+2H
2
O
This reaction is a redox reaction :
Removal of hydrogen or addition of oxygen is termed as oxidation. in above reaction, removal hydrogen from acetylene gives carbon-dioxide.
Removal of oxygen or addition of hydrogen is termed as reduction. in above reaction, removal of one oxygen atom from oxygen molecule with addition of two hydrogen atoms gives water
The oxidation number of carbon in acetylene is -2.
The oxidation number of carbon in carbon-dioxide= +4
Oxidation number of carbon increases after the reaction which means that carbon is getting oxidized.
The oxidation number of oxygen in oxygen gas = 0
The oxidation number of oxygen in water = -2
Oxidation number of oxygen decreases after the reaction which means that oxygen is getting reduced.
The electrons released during oxidation are transferred to the species which are undergoing reduction reaction.
Answer:
Just put this, or something like it:
The oxidation number of carbon changes from -1 to +4.
The oxidation number of oxygen changes from 0 to -2.
Carbon is oxidized.
Oxygen is reduced.
Electrons are transferred from carbon to oxygen.
Explanation:
What does it mean when an element has no subscript in a chemical formula?
Answer:
the element has no subscript because it is only one atom of it
Explanation:
If there isn't a subscript, it's presumed that there is only one atom of that element present.
What is subscript?Subscript is defined as a character that is printed slightly below and to the side of another character, commonly a letter or a number. A subscript is a character that is printed slightly below and to the side of another character, commonly a letter or a number. Chemists frequently employ subscripts in their formulations.
There is no number written if there is just one atom. The number is given as a subscript after the atom if there are multiples of a particular kind of atom. The number on the right side of the symbol indicates how many atoms of that element are contained in the molecule. The atomic number of an element is shown as a subscript on the left-bottom corner of a stand-alone symbol.
Thus, if there isn't a subscript, it's presumed that there is only one atom of that element present.
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How do the products of chemical reactions compare to their reactants?
Question 5 options:
The products often have completely different properties than the reactants.
The products usually weigh more than the reactants.
The products usually have more atoms than the reactants.
The products are usually more toxic than the reactants.
Answer: The products usually weigh more than the reactants.
Explanation:
Answer:
A
Explanation:
i just took the k12 test
can someone please help me with this question I will be soooo happy!!!
Answer:
The box exerts a resistance greater than 15 N.
Explanation:
If the student pushed on the box with 15 N and the box didn't more then the box gave a resistance greater than 15 N.
Hope This Helps! (and makes sense!)
Which particle has a higher rate of deposition
Answer:it’s c
Explanation:
Edge 2021
WILL GIVE 20 POINTS AND MARK BRAINLIEST IF YOU ARE RIGHT!!
Fill in the next verse of the song:
I see a little silhouetto of a man ________________
How many moles of gas does it take to occupy 120 liters at a pressure of 2.3 atmospheres and a temperature of 340 K?
Answer:
9.9 moles
Explanation:
What we know:
P = 2.3 atm V = 120 L
R= .0821 L atm/K mol T= 340 K
What we're looking for: n = ?
2.3 atm ( 120 L) = n (.0821 L atm/K mol) (340 K)
2.3 ( 120 ) = n (.0821 / mol) (340)
276 = n (27.914 / mol )
9.9 = n / mol
9.9 mol = n
A voltmeter is a device that measures electricity. It can detect the amount of electricity between two electrodes when they are submerged in a solution, such as salt water. Describe how you would find the melting point and the conductivity of the white substances in the beakers. Then, explain how you could identify which substance is salt and which is sugar.
Answer:
Explanation:
To determine the melting point of the unknown white substances. A sample of each of the unknown can be placed in separate capillary tubes and then placed in an adjustable heat source (for example water bath). A thermometer is then placed in the heat source very close to the tube holding the sample. The temperature of the heat source will be adjusted until the solid substance in the capillary tube starts to melt, the temperature at this point is noted as the melting point.
To determine the conductivity of the white substances, an electrolysis experiment is done. A sample each of the unknown substances is dissolved in water. These aqueous solutions are prepared separately. Two electrodes (positively charged anode and negatively charged cathode) are dipped into each of these solutions and an electric current is passed through these solutions, from an energy source (such as batter), through the electrodes (with the electric current flowing from the anode to the cathode). A voltmeter is then connected to this set-up to determine if electricity is been passed through the individual solutions.
The substance that is the salt will be the white substance that has the higher melting point and conducted electricity in the electrolysis set up; this is because NaCl salt is an ionic compound which has a high melting point and conducts electricity when dissolved in water. While the white substance that had a lower melting point and did not conduct electricity will be the sugar; this is because sugar/sucrose is an organic substance that has a low melting point and does not conduct electricity when dissolved in water.
If a neutral atom with 88 electrons undergoes 2 rounds of beta minus decay, what will be the new element?
Answer:
The new element will be thorium-226 (²²⁶Th).
Explanation:
The beta decay is given by:
[tex] ^{A}_{Z}X \rightarrow ^{A}_{Z+1}Y + \beta^{-} + \bar{\nu_{e}} [/tex]
Where:
A: is the mass number
Z: is the number of protons
β⁻: is a beta particle = electron
[tex]\bar{\nu_{e}}[/tex]: is an antineutrino
The neutral atom has 88 electrons, so:
[tex] e^{-} = 88 = Z [/tex]
Hence the element is radium (Ra), it has A = 226.
If Ra undergoes 2 rounds of beta minus decay, we have:
[tex] ^{226}_{88}Ra \rightarrow ^{226}_{89}Ac + \beta^{-} + \bar{\nu_{e}} [/tex]
[tex] ^{226}_{89}Ac \rightarrow ^{226}_{90}Th + \beta^{-} + \bar{\nu_{e}} [/tex]
Therefore, if a neutral atom with 88 electrons undergoes 2 rounds of beta minus decay the new element will be thorium-226 (²²⁶Th).
I hope it helps you!
2. A chemical reaction occurs when substances interact and their atoms
O A. disappear
B. change their size.
C. become new atoms.
O D. rearrange
Answer:Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.
Explanation:
plssss helppp
will mark brainliest
Answer:
high melting point
Explanation:
high melting point
helppp mehhh thanks:))
Answer:
natural gas
Explanation:
your welcomeee
What is one of the signs that a change is a chemical change?
A. A solution is formed.
B. A new shape is taken.
C. Light is produced. D. A solid melts.
please help
Answer:
A
Explanation:
If there is a whole new solution, then there was definetly a Chemical Change!
~PumpkinSpice1
c is correct
Explanation:
what type of data do you need to find the density of an object
Explain the relationship between protons and ionization energy
If 10 cubic centimeters of a liquid has a mass of
70 grams, what is its density?
A. 0.7 g/cm3
B. 7 g/cm3
C. 70 g/cm3
D. 700 g/cm
Answer:
V = 10 m³
m = 70 grams
density = ....?
density = m/v
= 70/10
= 7 g/cm³ (B)
What type of bond (Ionic, Covalent or Metallic) would be created when carbon bonds with bromine?
Answer:
Covalent bond
Explanation:
(pls give me brainliest) <3
Use the periodic table to write the electron configuration of selenium (Se). s s p d 1 2 3 4 6 10
Answer: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^4
Explanation:
I suggest looking at the electron configuration chart, it has really helped me a lot :)
Answer:
[Ar] 3d10 4s2 4p4
Explanation:
True or False: The Ring of Fire is a section along the Atlantic Ocean where you have active volcanoes
A. True
B. False
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a bimetallic strip in a thermostat works on the idea that..
Answer:
it can help heat or cool a room.
Explanation:
I think this is right...
Identify the four parts of the potential energy diagram
products
activation
energy
reactants
energy
released
by reaction
688
energy-
reaction progress
Answer:
Reactants, Activation energy, Energy released by the reaction and Products
Explanation:
This energy profile is that of an exothermic reaction. In an exothermic reaction, heat is liberated to the surrounding. The surrounding becomes hotter than the environment.
The first box to the left is the reactants which signifies the species combining together.
The topmost box is the activation energy which is the energy barrier that must be over come before a reaction takes place.
The box underneath is the energy change. Here, energy is being released.
The right most box is the product of the reaction.
Which of the following choices contains the most thermal energy?
a penny that is 20 degrees Celsius ( oC)
an atom of aluminum that is 20 degrees Celsius ( oC)
a 50 milliliter (ml) glass of water at 20 degrees Celsius ( oC)
a 900 milliliter (ml) pitcher of orange juice at 20 degrees Celsius ( oC)
Answer:
Honestly no idea
Explanation:
FOOOOOOOOD
All matter has
A. has mass
B. is atteacted to all other matter
Answer:
a
Explanation:
Can somebody help me with this??!
Which would gain electrons more easily, fluorine or iodine?
Answer:
i think iodine
Explanation:
I need help (yes agian)
Answer 1: The two most basic types of bonds are characterized as either ionic or covalent. In ionic bonding, atoms transfer electrons to each other. ... In contrast, atoms with the same electronegativity share electrons in covalent bonds, because neither atom preferentially attracts or repels the shared electrons.
Answer 2 : In ionic bonding, the atoms are bound by attraction of oppositely charged ions, whereas, in covalent bonding, atoms are bound by sharing electrons to attain stable electron configurations.
Answer 3 : Each nitrogen molecule consists of two atoms of nitrogen that are bonded by a triple covalent bond. This is a direct consequence of the fact that each nitrogen atom has 5 valence electrons. Each atom can thus complete its octet by sharing three electrons.
Bark bark Hope this helps :)
Answer:
O_o
Explanation: