Answer:
This is false
Explanation:
Im in bio and we just learned this lol
Study the image. Warm and cold air fronts with points labeled 1 through 4. 1: cold air entering from the left and moving down. 2: clouds with rain. 3: warm air entering from the right and moving up. 4: warm air entering from the top left and moving down toward the clouds. Warm and cold air fronts with points labeled 1 through 4. 1: cold air entering from the left and moving down. 2: clouds with rain. 3: warm air entering from the right and moving up. 4: warm air entering from the top left and moving down toward the clouds. At which point is cool air circulating beneath warm air? 1 2 3 4
Answer:
1
Explanation:
Warm and cold air fronts with points labeled 1 through 4, cold air entering from the left and moving down. Therefore, the correct option is option 1.
What is air?The term "air" is used to refer generally to the concoction of gases that composes the Earth's atmosphere. Nitrogen makes up the majority of this gas (78%), with oxygen, water vapor, argon, carbon dioxide, and trace gases also present.
There is no color or smell in pure air. Dust, pollen, and spores are common airborne contaminants; additional pollutants are alluded to as "air pollution." Since there isn't air in space, the so-called air on another planet, like Mars, would have different manufacturer. Warm and cold air fronts with points labeled 1 through 4, cold air entering from the left and moving down.
Therefore, the correct option is option 1.
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How many electrons are being shared between the two carbon atoms in the covalent compound ethyne? Ethyne has the structure: H−C≡C−H
Answer:
Three lines between the carbon atoms in the Lewis structure represent three covalent bonds. Each covalent bond is a shared pair of electrons, hence there are six electrons being shared between the carbon atoms in ethyne.
The number of electrons that are being shared between the two carbon atoms in the covalent compound ethyne is six.
What are covalent bonds?Covalent bond are formed by the sharing of electrons between two atoms.
In ethyne molecule two carbon atoms are present and between two carbon atoms three covalent bonds are present. And each covalent bond is formed by the sharing of two electrons. So three covalent bonds are formed by the sharing of 6 electrons.
Hence in ethyne 6 electrons are being shared.
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describe a difference in our inner planets and outer planets
The domain level divides
organisms based on the
differences between
eukaryotes and
prokaryotes. Eukaryotes
have a nucleus in their
cells. Which BEST describes
prokaryotes?
A. Prokaryotes are nonliving things.
B. Prokaryotes do NOT have a nucleus.
C. Prokaryotes include all plant life.
D. Prokaryotes cannot reproduce.
Answer:
B. Prokaryotes do NOT have a nucleus.
6. What does a numerical subscript following a set of parentheses in a chemical
formula mean?
A numerical subscript following a set of parentheses represents the number of the group or poly-atomic ion in parentheses are present in a chemical formula.
As an example, calcium hydroxide is [tex]\bold { Ca(OH)_2 }[/tex] . The subscript (2) indicates that calcium hydroxide contains two hydroxide ions.
Therefore, A numerical subscript following a set of parentheses represents the number of the group or poly-atomic ion in parentheses are present in a chemical formula.
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Use the periodic table to determine which of the
following could be an isotope of bromine (Br).
Check all that apply.
Z = 79, A = 196
Z = 35, A = 79
A = 79, N =44
D Z = 44, N = 44
DONE
(41). Which of the following molecules is (are) polar? For each
polar molecule, indicate the direction of polarity—that is,
which is the negative end, and which is the positive end
of the molecule.
(a) BeCl2
(c) CH3C
(b) HBF,
(d) SO3
Answer:
The oxygen is the negative end of the molecule, while the area between the hydrogen atoms is the positive end of the molecule. Figure 2. Water is a polar molecule, as greater electron density is found around the more electronegative oxygen atom.
Temperatures in the upper atmosphere (thermosphere) reach 1500°C (2700°F), yet it does not produce
enough heat to burn you. Why?
if im not mistaken its because the ozone layer
What volume, in liters, does 128 grams of O2 occupy at STP?
89.6 L
22.4 L
67.2 L
44.8 L
Answer: 89.7 L
Explanation:
89.6 volume, in liters, does 128 grams of O2 occupy at STP. Therefore, option A is correct.
What do you mean by volume ?A volume is simply the amount of space taken up by any three-dimensional solid. A cube, a cuboid, a cone, a cylinder, or a sphere are examples of solids. Volumes differ depending on the shape.
Every three-dimensional object requires some amount of space. The volume of this space is measured. Volume is defined as the space occupied by an object within the boundaries of three-dimensional space. It is also known as the object's capacity.
1 mole Oxygen has mass 32 grams
Mole of Oxygen in 128 g mass = 128 g / 32 g/mol
= 4.0 mol O2
At Standard temperature and pressure this has volume
= 4.0 mol × 22.4 L/mol
= 89.6 L
Thus, 89.6 volume, in liters, does 128 grams of O2 occupy at STP, option A is correct.
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if I have a +2 oxidation number do I give up or accept electrons?
Answer:
I will give up the electrons
Explanation:
Consider the following rules:
1. An atom loses electrons if its oxidation number is positive.
2. An atom gains electrons if its oxidation number is negative.
3. An atom neither gains nor loses electrons if its atomic number is zero.
As I have an oxidation number [tex]+2[/tex] that is oxidation number is positive, so, I will give up electrons.
the substance that can not be further decomposed by ordinary chemical means is
A.water
B.gold
C.sugar
D.air
How does Earth's rotation affect ocean currents?
Lesson 2.09
Question 9 options:
It causes them to flow in a curved path
It has no affect
It causes them to flow from east to west
It causes them to flow from north to south
Answer:
Our planet's rotation produces a force on all bodies moving relative to theEarth. ... The force, called the "Coriolis effect," causes the direction of winds and ocean currents to be deflected.
Explanation:
Earth's rotation affect ocean currents because: A. It causes them to flow in a curved path.
What is Earth rotation?Earth rotation can be defined as the amount of time that is taken by planet Earth to complete its spinning movement about an orbital axis.
This ultimately implies that, Earth rotation refers to the time taken by earth to rotate once on its axis. Also, a spinning movement of the Earth on its axis takes approximately 24 hours to complete with respect to the Sun and it result in an effect called Coriolis.
In conclusion, Earth's rotation affect ocean currents because it causes them to flow in a curved path due to Coriolis effect.
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Name the bond between atoms that share electrons
What is a molecule
Give five examples of molecular elements
Draw a diagram to show the bonding in
Carbon dioxide Methan
hydrogen chlorine
Answer:
1) Covalent bond, in chemistry, the interatomic linkage that results from the sharing of an electron pair between two atoms. The binding arises from the electrostatic attraction of their nuclei for the same electrons.
2)A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds. These bonds form as a result of the sharing or exchange of electrons among atoms.
3)Hydrogen (H2), oxygen (O2), and chlorine (Cl2) molecules, for example, each contains two atoms. Another form of oxygen, ozone (O3), has three atoms, and sulfur (S8) has eight atoms. All elemental molecules are made of atoms of a single element.
Explanation:
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How do the ions in metals behave?
a They are negatively charged.
b They are repelled by electrons.
c They are attracted to each other.
d They are repelled by each other.
Answer:
attracted towards each other
Explanation:
hope u like the ans
Answer:
The ions in metal behavior by repelled by electro
9. _____________ have a mass number of 0.
10. Particles found in the nucleus are called ______________________.
11. _____________________________ is when electrons are released by a hot filament.
12. The number of protons and neutrons in an element is called the _______________ number.
13. ____________________ was the first atomic bomb dropped.
14. _________________ would be an example of a spontaneous change to the nucleus.
15. _____________ decay results in the release of two protons and two neutrons.
16. __________________ are particles that would be attracted to a positively charged plate.
17. __________________________ coined the word radioactivity.
18. ____________________________________ is used to produced radioactive isotopes by
forcing nuclear reactions.
19. During __________________, the nucleus of a Uranium 235 atom is split into lighter
elements, neutrons, and energy.
20. _________________ are the fastest form of radiation.
21. The number of protons in an element is called the _______________ number.
22. Irene Curie used ___________________ as the source of alpha particles for her research.
23. Uranium goes through _____________ decay ____________ (a number) times to produce
Plutonium.
24. ________________ is a raw Uranium ore which was central to the discovery of radioactivity.
25. The ____________________ was cited in the letter signed by Einstein as having ore with
high concentrations of U-235.
Answer:
sheeesh thats a lot
Explanation:
Answer:
9. Neutronium
10. Protons and Neutrons
11. cathode
12. mass
13. Little Boy
14. Radioactive decay
15. Alpha
16. Electrons
17. Marie Curie
18. Nuclear fission
19. fission
20. Gamma
21. atomic
22. aluminum foil
23. beta/ 2
24. X-rays
25. Einstein–Szilárd letter
_C3H602 + _ 02 → _ CO2 +_ H20
balance the equation
Answer:
balanced plz give correct question
What is the farthest distance the moon gets from Earth?
Answer:
When the Moon is the farthest away, it's 252,088 miles away. That's almost 32 Earths.
Explanation: The orbit is not a perfect circle.
Answer:
Explanation:
At perigee its closest approach the moon comes as close as 225,623 miles (363,104 kilometers).
At apogee the farthest away it gets the moon is 252,088 miles (405,696 km) from Earth.
who is princess tianas best friend, if you can get her name right then ill give you brainliest
Answer:
Oo i think her name is Tiana..... ❤️❤️Answer:
Charlotte La Bouff
Explanation:
"Lottie" if you will
What is the chemical formula for Tetrasulfur pentoxide?
Answer:
S 4 O 5
Explanation:
the 4 and 5 are little
When iron (iii) oxide, Fe2O3, and aluminum are heated together at a high temperature, iron (Fe) and aluminum oxide (Al2O3) is formed
1.What is the meaning of the symbol (iii) in iron (iii) oxide?
2.Write a balanced equation for this reaction
What other substance (besides salt) could you sprinkle over ice to affect how fast it melts? Describe how you would test the substance's impact on the melting time of ice. Predict the results of such a test.
Answer:
See explanation
Explanation:
Salt makes ice to melt faster than it usual. Sugar is another substance that influences the melting time of ice.
If i have a sample of pure ice and another sample of ice treated with sugar. I have to maintain the both initially at 0 degrees temperature and have a stop clock to measure the melting time.
I will ultimately notice that the sample of ice treated with sugar will melt faster than the pure sample of ice due to the presence of an impurity.
1) how can you make a solution more concentrated
Explanation:
solvent bc when you remove it it becomes more concentrate
What energy associated with light that allows us
to see colors on the ROYGBIV spectrum?
Answer:
Visible light waves let you see the world around you. The different frequencies of visible light are experienced by people as the colors of the rainbow.
Explanation:
Which item is most likely to dissolve faster in water. A sugar cubes. B powdered sugar pls helpp
Answer:
Powdered sugar , it has much more surface area for the state change to occur over
Explanation:
I hope this helps.
You have two samples, one is calcite and the other is halite.
How would you differentiate between without using any equipment?
A- Colour
B- Specific gravity
C- Hardness
D- Cleavage
Answer:
c
Explanation:
You can differentiate between calcite and halite without using any measuring equipment based on: C. Hardness.
What is a mineral?A mineral can be defined as a form of naturally occurring, inorganic solid substance that is typically characterized by a crystal structure.
The properties of a mineral.In Science, the properties that can be used to identify and differentiate two or more minerals include the following:
LusterStreakHardnessIn conclusion, hardness is a mineral property that can be used to differentiate between calcite and halite without using any measuring equipment.
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2C3H7OH + 9O2 -> 6CO2 + 8H2O
How Many Moles of CO2 can be produced by reacting 6 moles of C3H7OH with oxygen?
Answer:
Up to [tex]18\; \rm mol[/tex] [tex]\rm CO_2[/tex].
Explanation:
The equation for this reaction: [tex]2\; \rm C_3 H_7 OH + 9\; O_2 \to 6\; CO_2 + 8\; H_2O[/tex] is indeed balanced.
Notice that the coefficient of [tex]\rm C_3 H_7 OH[/tex] is [tex]2[/tex] while that of [tex]\rm CO_2[/tex] is [tex]6[/tex].
Therefore, each unit of this reaction would consume [tex]2[/tex] units of [tex]\rm C_3H_7OH[/tex] while producing [tex]6[/tex] units of [tex]\rm CO_2[/tex]. In other words, this reaction would produce three times as much [tex]\rm CO_2\![/tex] as it consumes [tex]\rm C_3H_7OH\![/tex].
If all that [tex]6\; \rm mol[/tex] of [tex]\rm C_3H_7OH[/tex] molecules are actually consumed through this reaction, three times as many [tex]\rm CO_2[/tex] molecules would be produced. That corresponds to [tex]3 \times 6\; \rm mol = 18\; \rm mol[/tex] of [tex]\rm CO_2\![/tex] molecules.
Explain the trend in boiling points as you move down group v11
Answer:
Fluorine
Chlorine
Bromine
Iodine
Boiling point increases as you go down the group v11
Explanation:
The elements of Group VII are the halogens consisting of f fluorine (F), chlorine (Cl), bromine (Br), iodine (I). All of which are non metals and exists as diatomic molecules - F2, Cl2, Br2, I2 with intermolecular attractions between the two molecules of each element held by Van der Waals dispersion force.
Moving down the group, the size of the atoms increases in size from Fluorine, F2 and Chlorine, Cl2 which are gases to Bromine , Br2 which exists as a liquid to solid, Iodine, I2. This attributes to the increasing in Strength of the Van der Waals forces as you go down the group. In order to break the vanderwaals forces , More heat energy is required to change thier states leading to the increase in boiling point going down the group.
Fluorine
Chlorine
Bromine
Iodine
Boiling point increases as you go down the group
A confined quantity of a gas has a pressure of 2.50 atm and a temperature of -22⁰C. What is the new pressure if the temperature is increased to 22⁰C?
a. 2.1 atm
b. 2.5 atm
c. 2.94 atm
d. 3.41 atm
Answer:
C Ian sure2.94atm
Explanation:
I am low student
What do molecules put together form?
In other terms what do you call a molecule that is put together with another molecule to form a what?
explain why temperature is not as hot during the summer when a city is on a body of water (for example San Diego vs. Imperial Valley).
Answer:
because the water brings a cool breeze when the wind blows
Explanation: