Answer: Rubbing
Explanation: The lost atoms never come back because after rubbing, the molecules are shaking back and forth faster than they were billions of atoms. When molecules break apart or come together, that's called a nitrogen and oxygen molecules are lost this way too, but since their average velocity is so simplicity , that is missed by people who don't study physics.
cer about Why do space objects fall to Earth?
The molecular weight of Magnesium Sulphate
can you help again
will be the brainiest
Answer:
B
Explanation:
Graphing data can help you to recognize
Answer:
Graphing data can help you to recognize changes in what your doing.
Explanation:
Answer:
Explanation:
To identify trends, make predictions, and recognize anomalous data. Helps you understand what your data means or a picture of your graph. A graph wich the points form a straight line.
A satellite in orbit maintains a constant speed while orbiting around the earth.
Newton's 1st Law
Newton's 2nd Law
Newton's 3 Law
Law of Universal Gravitation
Law of Conservation of Momentum
Answer:
Newton's 2nd Law
Explanation:
What is the name of the group of elements that are unreactive gases?
Actinides series
Halogen gases
Lanthanide series
Noble gases
Answer:
halogen gases is not reaction
Answer:
Halogen Gases
Explanation:
The outer shell of this element was determined as illustrated here. It must be a _____.
: light metal
: heavy metal
: non metal
: noble gas
The outer shell of the given element was determined as illustrated must be a noble gas. Therefore, option D is correct.
What are noble gases?Noble gases can be described as the 6 elements that are organized in group 18 of the modern periodic table. The noble gases are Helium, Neon, Argon, Krypton, Xenon, and Radon.
Under standard temperature and pressure, noble gases exist in the gaseous form and possess low reactivity. Therefore, noble gases are also referred to as inert gas. All the noble gases exhibit stable electronic configurations in their valence shell that are completely filled. Noble gases generally exist as monoatomic.
The general outer configuration of the noble gases can be written as ns²np⁶, n is the principal quantum number. Therefore, the given electron dot diagram has eight electrons in its valence shell so it is representing a noble gas.
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Many people like the idea of using windmill farms, but they do not want the power plants near their homes. What is the most likely reason that people do not want to live near wind power plants? They are concerned about being exposed to air pollution. They are worried that wind near their homes will be used up. They think the increased operating costs will increase their electric bills. They do not want to live near towers that transfer electricity.
Answer:
d.They do not want to live near towers that transfer electricity
Explanation:
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
Chlorine has an atomic number of 17.
How many protons are in an atom of chlorine?
17
18
35
52
Explanation:
The protons are in an atom of chlorine is also 17. So , mark this answer as BRAINLIEST answer.Thank you ☺️☺️
Which sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory? higher temperature Right arrow more kinetic energy Right arrow more space between particles Right arrow higher volume higher temperature Right arrow less kinetic energy Right arrow less space between particles Right arrow higher volume higher temperature Right arrow more kinetic energy Right arrow less space between particles Right arrow lower volume higher temperature Right arrow less kinetic energy Right arrow more space between particles Right arrow lower volume
Answer:
higher temperature → more kinetic energy → more space between particles higher volume
Explanation:
Kinetic Molecular Theory states that gas particles exhibit perfectly elastic collisions and remain in constant motion. Absolute temperature is directly proportional to the average kinetic energy of gas particles.
The following sequence represents the relationship between temperature and volume as explained by the kinetic-molecular theory:
higher temperature → more kinetic energy → more space between particles higher volume
how many people have o- blood right now
Answer:
7% of people
Explanation:
One isotope of carbon has 6 protons and 6 neutrons. The number of protons and neutrons of a second isotope of carbon would be _____.
a. 7 and 6
b. 7 and 7
c. 6 and 6
d. 6 and 7
4.564000 x 10^-4 express how many significant figures
Answer: 7
Explanation:
Before a number but after a decimal. The zeros at the end would usually mean that it doesn't count but since the numbers are before the zeros and after a decimal it's 7 sig figs
Definition of volume
Answer:
The amount of space an object occupies.
Explanation:
How do you identify the solute and solvent of SO^2
Answer:
How to identify a solute and solvent?
It is not possible to identify the solute and solvent as different substances in a solution. In a solution of table salt and water, the salt is the solute and the water is the solvent. In the cells of your body, substances such as calcium ions and sugar are solutes, and water is the solvent.
Explanation:
Answer:
Fórmula química: SO2 estado=Gas
Punto de ebullición: -10 °C (14 °F)
Masa molar media: 64,06 g/mol
Punto de fusión: -72 °C (-97,60 °F)
Denominación según IUPAC: Dióxido de azufre
Explanation:
1. A sample of a hydrocarbon is burned completely
and produces 22 g of CO2 and 27.0 g of H2O. The
empirical formula of the hydrocarbon is:
When an electron in an atom moves from a higher, less stable level, down to a lower, more stable level, a photon is
A)
created.
B)
emitted.
C)
absorbed.
D)
destroyed.
Answer:
Emitted
Explanation:
Answer:
B. emitted.
Explanation:
Which statement describes an intensive property of matter?
It is the same for every sample of a single substance.
It depends on how a substance was formed.
It is the same for every sample of every substance.
It depends on the amount of substance present.
Answer:
It is B on edge, iv just finished taking the quiz :)
Explanation:
Hope this helps! Let me know if you need anymore help:)
Answer: The answer Is : It depends on how a substance was formed
Explanation:
Took the test on edge and got 100%
How many atoms are in 3C2H6
Answer:
Two carbon atoms and six hydrogen atoms = 8 atoms
Explanation:
Will give brainliest if solved.
I know all the answers, i just need help identifying key words to show my work.
Explanation:
please the picture is blurry it's very hard to read can you take another picture. am sorry
Answer:
Can u make the clues bigger
Explanation:
Antibiotics do not reduce the number of helpful and harmful bacteria in the microbiome.
O True
O False
Answer:
false; the purpose of antibiotics is to kill bacteria
Explanation:
It is true, it does reduce the number in both categories.
? Question
Match the scientists to their contributions to the development of the periodic table.
Drag the tiles to the correct boxes to complete the pairs.
Answer:
Proposed a periodic table that accommodated for the discovery of new elements, Dmitri Mendeleev
Proposed a triad arrangement based on the elements’ physical and chemical similarities Johann Döbereiner
Proposed a periodic table based in the repeating properties of the elements like an octave in music. John Newlands
Proper a periodic table based on the increasing order of the elements atomic numbers. Henry Moseley
Explanation: I did the same thing
Answer:
The first one is:Dmitri Mendeleev
second one is:Johann Döbereiner
third one is:John Newland
fourth one is:Henry Moseley
Catalysts are ______ that increase the rate of a chemical reaction
Answer: substance reactions
Explanation:
The isotopes of Madeupium (Ma) and their abundance in nature are shown below. Which is the most likely estimate of what the atomic mass is close to?
Ma-74 (74.333 - 85%)
Ma-75 (74.999 - 10%)
Ma-76 (75.700 - 5%)
A. 74 g
B. 75 g
C. 76 g
Answer:
A = 74 g
Explanation:
Given data:
Ma-74 (74.333 - 85%)
Ma-75 (74.999 - 10%)
Ma-76 (75.700 - 5%)
Atomic mass close to = ?
Solution:
1st of all we will calculate the average atomic mass.
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) + (abundance of 3rd isotope × its atomic mass) / 100
Average atomic mass = (85×74.333)+(10×74.999)+(5×75.700) /100
Average atomic mass = 6318.305 +749.99+ 378.5 / 100
Average atomic mass= 7446.795/ 100
Average atomic mass = 74.467 amu
The average atomic mass is closer to the 74 g.
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
What did J.J. Thomson's cathode-ray tube experiment show?
Atoms are small individual spheres.
Electrons are in a cloud surrounding positively charged particles.
Atoms consist of at least some negatively charged particles.
Matter can be neither created nor destroyed.
Answer:
Atoms consist of at least some negatively charged particles (Electron)
Explanation:
J.J. Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons.
Please correct me if I'm wrong.
How hot can the sun’s photosphere get?
A-15 million °C
B-46 million °C
C-1.5 million °C
D-4,600°C
Answer:a
Explanation:
What are the 6 types of chemical reactions?
Answer:
Explanation:
Six common types of chemical reactions are: synthesis, decomposition, single-displacement, double-displacement, combustion and acid-base reactions .
Chemical reactions can be classified into six main types based on their characteristics. The six types of chemical reactions are Combination (Synthesis) Reaction, Decomposition Reaction, Displacement (Single Replacement) Reaction, Double Displacement (Double Replacement) Reaction, Combustion Reaction, and Redox (Oxidation-Reduction) Reaction.
Combination reactions involve the union of two or more substances to form a more complex compound. Decomposition reactions involve the breakdown of a single compound into simpler substances.
Displacement reactions occur when an element displaces another element in a compound, resulting in the formation of a new compound and a different element. Double displacement reactions involve the exchange of ions between two compounds, leading to the formation of two new compounds.
Combustion reactions occur when a substance reacts rapidly with oxygen, producing heat and light. Understanding these different types of chemical reactions helps in predicting and understanding the behavior of substances during chemical transformations.
Therefore, the six types of chemical reactions are Combination (Synthesis) Reaction, Decomposition Reaction, Displacement (Single Replacement) Reaction, Double Displacement (Double Replacement) Reaction, Combustion Reaction, and Redox (Oxidation-Reduction) Reaction.
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Calculate the mass of 20 moles of Fe
Answer:
1116.9g
Explanation:
The mass of 20 moles of Fe is 1116.9 g or 1117 g/mol.
Calculation,
The mass of one mole of [tex]Fe[/tex] = 55.85 g/mol
Mass of 20 moles of [tex]Fe[/tex] = 20×55.85 g/mol
Mass of 20 moles of [tex]Fe[/tex] = 1116.9 g ≈ 1117 g/mol
What is molar mass ?The mass of the one mole of the substance (atom) is called molar mass.
Example: The molar mass of [tex]Fe[/tex] is 55.85 g/mol
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How many sig figs are in 2.3400?
Answer:
5 fig Hope this helps!
I hate asking for things, but may I have brainliest I'm trying to rank up.
Explanation:
Sig Figs
5
Decimals
4
Scientific Notation
2.3400 × 100
Words
two point three four