Answer:
Both physical and chemical changes
Which of the following species of manganese would have the largest atomic radius?
Answer:
Largest is Mg as across the period atomic radius decreases
A lunar eclipse occurs at night and can only occur during what phase of the moon?
New moon
Full moon
Answer:Full moon
Hope this helps :)
A lunar eclipse can occur only at full moon.
Explanation:
During a lunar eclipse, Earth comes between the Sun and the Moon, blocking the sunlight falling on the Moon. A total lunar eclipse occurs when the Moon and Sun are on opposite sides of Earth. A partial lunar eclipse happens when only part of Earth's shadow covers the Moon.
Answer:
"Full moon"
A full moon would be needed due to the fact that the sun would need to entirely block it, resulting in a solar eclipse. Hence, the answer is "Full moon".
An image of Earth's layer is above.
Which layer is the most dense?
layer A
layer B
layer C
layer D
Answer:
Layer D
Explanation:
Earth's interior layers are ordered by density. The densest layer is the solid metal inner core, the mantle is of intermediate density, and the least dense layer is the lithosphere, particularly the continental lithosphere.
1. Which of the following is neutrally charged?
c. an electron
b. a compound d. a proton
a. an ion
d. a proton
Answer:
B. A compound
Explanation:
An ion is defined as a charged particle, so it's not going to be that. Ions can be positively or negatively charged.
Electrons are tiny particles, smaller than an atom, that revolve around the nucleus. They have a negative charge. So they are not neutral either
Protons are also a part of atoms, like electrons are. An atom is neutral overall. This is because protons have a positive charge that balances out the negative charge of electrons.
So, the only answer option we have left is for a compound. So, that's our answer!
Answer:
c. an electron
Explanation:
A neutral charge is the electrochemical occurrence where an atom has an equal number of electrons and protons. Such an atom is neither positively charged nor negatively charged because the protons and electrons balance each other out
HELP!! pick the correct answer please. picture attached
Answer:
A solution, in science, refers to a type of mixture involving two or more substances. Specifically, the solution definition refers to a type of homogeneous mixture - i.e., a mixture that has a uniform composition and its individual components cannot be distinguished
Answer:
C.Concetrated solution
Explanation:
hope it's help.
If an ionic compound has a 2- charge how does that affect the total number of electrons in a Lewis structure
In the situation where an ion has a charge of -2, the Lewis structure is affected because it must add two additional electrons.
The Lewis structure is a term to refer to the graphical representation that shows the pairs of electrons in dashes or points of bonds between:
The atoms of a moleculeThe lone electron pairs that may existAdditionally, the charge of an ionic compound is calculated using the difference in electrical charge between the electrons. On the other hand, an ion is formed by adding or removing electrons, so the magnitude of the resulting charge depends on the number of electrons added or removed.
According to the above, if an ionic compound has a -2 charge, the Lewis structure must add two electrons.
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3. What is the picture displayed? *
1 point
Captionless Image
Answer:
(not sure what's the question ) Captionless image??
What are the sources of petrochemicals
Answer:
Petrochemicals are chemical products derived from petroleum, although many of the same chemical compounds are also obtained from other fossil fuels such as coal and natural gas or from renewable sources such as corn, sugar cane, and other types of biomass.
Answer:
The sources of petrochemical are: fossil fuel such as coal and natural gases or from renewable sources such corn, sugar, cane and other types of biomass .
Explanation:
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Given R = 0.0821L⋅atm/mol⋅k, how many moles of gas are in a 1.25 L container at 300K and 2.07 atm?
A. 9.51 mol
B. 0.105 mol
C. 0.084 mol
D. 0.067 mol
Explanation:
Its B) 0.105 enjoy youre day
what is kinetic enegry
Kinetic energy → the kinetic energy of an object is the energy that it possesses due to its motion
For an example ↓
taylor drinks 2 liters of water during every concert how many milliliters did she drink during two concerts
Answer:
Taylor drinks 4 liters of water
Explanation:
2 litters of water per concert
2 concerts is 2x2=4
urgent help! will mark as brainliest
Answer:
1. Negative
2. positive alpha
3. Gold
4. deflected
5. center
6. positive
7. positive
8. center
Hope this helps :)
Which new item, if added to the density
column, would settle and stay right in the
green dyed water layer
a. Charcoal = 0.56 g/mL
b. Glass = 1.40 g/mL
c. Paperclip = 1.00 g/mL
d. Thumbtack = 1.9 g/
Answer:
example:
aExplanation:
bicuse its true colum
Which type of element Is not likely to react chemically with other elements to form a compound?
Answer:noble gases
Explanation:
Sodium chlorate decomposes into sodium chloride and oxygen gas as seen in the equation below.
2NaClO3 --> 2NaCl +3O2
How many moles of NaCl were produced by 10 moles of NaClO3? Round your answer to the nearest whole number.
Answer:
10 moles of sodium chloride
Explanation:
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Polymers are large organic molecules that are made of
a.
cations.
c.
carbon and oxygen only.
b.
anions.
d.
repeating units.
Answer:
D) Repeating units.
Explanation:
Polymers are large macromolecules which are made up of many repeating structural units called monomers :)
What is the quantum mechanical electron configuration of arsenic?
Answer:
After the 4s sublevel is filled with two electrons, ten electrons fill the 3d sublevel, which is slightly higher in energy than the 4s sublevel. After the 3d sublevel is filled, the remaining three electrons will be in orbitals in the 4p sublevel. Thus, the electron configuration for arsenic is [Ar] 4s(2 squared) 3d(10 squared) 4p(3 squared).
can anyone send me the structure of iron ?
;
Answer:
HOPE IT HELPS
Explanation:
PLS MARK BRAINLIEST ^_^
Answer:
Here you go dear..
Here's the structure of iron you were talking about earlier..
(ㆁωㆁ)(◍•ᴗ•◍)
Explanation:
Hope it helps you..
Your welcome in advance..
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1.-Una solución de 1600 ml contiene 9,5 gramos de agua oxigenada H2O2 Calcular el porcentaje peso volumen del soluto.
How many ethnic groups are there in China?
Answer:
There are a total of 56 ethnic groups in China, with 56 ethnic groups and 56 family members.
Explanation:
There are a total of 56 ethnic groups in China, with 56 ethnic groups and 56 family members.
✞➪name the macromolecules that are chosen as drug targets.♔♔♔
Answer:
The macromolecules chosen as drug targets are carbohydrates, lipids, proteins, and nucleic acids.
Explanation:
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an ionic compound, salt is a hard, crystalline substance in which the______and_______ions are lined up in a regular pattern
A. polar, nonpolar
B. red,blue
C. right,left
D. positive, negative
PLEASE ONLY GIVE CORRECT ANSWERS!! I WILL GIVE BRAINLIEST
Answer:
An ionic compound, salt is a hard, crystalline substance in which the positive and negative ions are lined up in a regular pattern.
Explanation:
4
Select the correct answer.
Which statement best describes how chemical equations demonstrate conservation of mass?
O A.
The number of reactants is the same as the number of products.
O B.
The compounds are the same on each side of the reaction.
O c.
The number of atoms of each element is the same on each side of the equation.
OD.
The state of matter is the same on each side of the equation.
Answer:
C. The number of atoms of each element is the same on each side of the equation.
Explanation:
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1. What process occurs along divergent plate boundary?
2. What geologic features formed when two plates moved away from each other?
3. Compare rift valley from mid-ocean ridge. Explain your answer. PIVOT 4A CALABARZON 24
1. Earthquakes and Eruptions (volcanoes)
2. Divergent plate boundary
3. Apart from a widening valley, it equally contributes to steep mountain sides spreading. A mid-oceanic ridge is naturally produced if two oceanic plates naturally start moving away from each other.
Explanation:1. When a divergent boundary occurs beneath oceanic lithosphere, the rising convection current below lifts the lithosphere, producing a mid-ocean ridge. Extensional forces stretch the lithosphere and produce a deep fissure. When the fissure opens, pressure is reduced on the super-heated mantle material below. It responds by melting, and the new magma flows into the fissure. The magma then solidifies and the process repeats itself.
2. When two plate diverge from each other also known as divergent (di-apart, vergere- to inclined) plate margin .
Two plate diverge along oceanic ridges where new lithosphere is created.
Now come to the main point: Geological Features
When two oceanic plate diverge then new sea floor is created by a process called sea floor spreading and features like Mid oceanic ridges, volcanoes & Young lava flows forms. Ex. East Pacific Rise, Mid-Adlantic Ridge.
When two continental plates diverge by continental rifting then features like Rift valley, volcanoes are found. Ex of continent continent -East Africa rift vally, Red sea.
3. The major difference between different types is what type of plate the divergent boundary is between. If the boundary is found between two continental plates you are left with a rift valley. ... If two oceanic plates begin moving away from each other it creates a mid-oceanic ridge.
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which of the following oxides will react with magnesium most readily when both are heated?
A.zinc oxide
B. copper(2) oxide
C.lead (2) oxide
D. aluminum oxide
Answer:
None of the above
Explanation:
• This is because all the metal oxides provided are below magnesium in the reactivity series.
[ pic attached ]
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Which location in the diagram above is the Southern Hemisphere experiencing summer?
Location A
Location B
Location C
Location D
Answer:
location a
Explanation:
Answer:
Location B
Explanation:
I am giving the brainliest answer too
Explain… What are the subatomic particles of an atom, and where are they located in the atom? Be specific.
Atomic Particles
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
I hope its helpdescribe another medical condition or disease where the primary system causes a serious problem with a secondary system
Answer:
Congestive heart failure
Explanation:
Congestive heart failure happens when your heart gets too weak to pump blood from the lungs out to the body. Pressure builds up in the heart which puts pressure on the blood vessels of the lungs. This will lead to leakage of the vessels and the fluids build up in the air sacs of the lungs. This condition is called pulmonary edema.
Pulmonary edema occurs when fluid builds up in the lungs making it hard to breathe. It may start out as running out of breath easily but if left untreated (both conditions) symptoms get worse over time.
Look at diagram 1 above. What type of eclipse is shown based on the alignment of the Earth, Sun, and Moon?
Solar eclipse
Lunar eclipse
A student makes a diagram that shows the layers of Earth. The student incorrectly claims that the density of each layer is the same. Which of these accurately describes the
layers of Earth?
The density of Earth's layers increases from the center to the surface,
The density of Earth's layers increases as you move down toward the center.
The mantle is less dense than the layer above it but denser than the layer below it.
The outer core is denser than the layer below it but less dense than the layer above it.
Answer:
B.
Explanation: