Answer:
they have the maximum number of valence electrons their outer shell can hold.
Explanation:
_________ is when humans choose the traits of an organism.
Your answer should be -selective breeding
[tex]hope that helps[/tex]
help me please :(
D & 1 is also a option
Letter C shows that some of the heat rising from the earth's surface is trapped by gases in the atmosphere and reflected back to earth. This is known as what?
Question 3 options:
Coriolis Effect
Solar Flares
Green House Effect
Windshield Effect
Answer:
green house effect
Explanation:
it works like a green house
Help me join the name the muddled sentences
Answer:
did this help ?
Explanation:
He muddled his way through the opening verse and belted out the chorus, creating a schizophrenic performance.: The results included muddled avant-garde theatrical staging techniques and insensitive and maladroit portraits of African Americans .
Select the best answer.
Which element's atoms are most likely to touch each other without overlapping?
iron
hydrogen
carbon
radon
Answer: iron
Explanation: Metals' atoms are closely bonded in a crystal lattice. In metallic bonds, the electron cloud boundaries of atoms touch each other. Many nonmetals occur as diatomic molecules. The electron clouds of these two bonded nonmetal atoms overlap .
Hydrogen atoms are most likely to touch each other without overlapping because of their small size and simple atomic structure.
A hydrogen molecule is a particle of the synthetic component hydrogen. The electrically unbiased molecule contains a solitary emphatically charged proton and a solitary adversely charged electron bound to the core by the Coulomb force. Nuclear hydrogen is around 75% of the baryonic mass of the universe.
Hydrogen exist as diatomic particle, I.e., it can exist by attaching to another hydrogen. You realize that hydrogen has just a single electron in it's furthest and just shell. Yet, to accomplish a steady design, there should be two electrons in this shell. So two hydrogen molecules share their electrons by holding.
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A lithium (Li) atom has 1 valence electron. Which of the following would be the most likely way for a lithium atom to become stable?
Answer:
Lithium will lose 1 electron in order to become stable
Answer:
lithium has 3 electrons so it has 3 protons and 3 electrons two electrons will shell 1 and then it will shell 2
Explanation:
this is what i learned
hope it helps
Explain why a hydrogen atom doesn’t have a neutron in its nucleus.
Answer: Hydrogen does not contain neutron, because its nucleus is smallest in size which cannot accommodate any heavier neutron. It also makes hydrogen atom unstable in nature.
Explanation:
Who created the planetary model of the atom?
Question 1 options:
Democritus
Dalton
Rutherford
Bohr
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
Which of these mixture is a solution
Answer:
A. Sugar and water
Explanation:
Because water can dissolve sugar
Convert 1.2 Mg into milligrams
Answer:
1200 milligrams
My grass is dying, and I believe it is because it is not getting enough water. To test my hypothesis I water my backyard every day for a month, and I leave my front yard alone. After 1 month my backyard is green and healthy while my front yard is still dead.
What is the control group?
A.
Front Yard
B.
Back Yard
C.
Water
D.
Grass Health
Answer:
D. Grass Health
Explanation:
Molybdenum can form a wide series of halide compounds, including four different fluoride compounds. The percent by mass of molybdenum in the four compounds is 63.0%,
56.0%,
50.0%,
and 46.0%.
Determine the formula and name for each of the four different molybdenum fluorides.
The formula and names of the compounds are:
1. Formula of compound => MoF₃
Name of compound => Molybdenum trifluoride
2. Formula of compound => MoF₄
Name of compound => Molybdenum tetrafluoride
3. Formula of compound => MoF₅
Name of compound => Molybdenum pentafluoride
4. Formula of compound => MoF₆
Name of compound => Molybdenum hexafluoride
1. Determination of the name and formula of the molybdenum fluoride having 63.0% of molybdenum.
Molybdenum (Mo) = 63.0%
Fluorine (F) = 100 – 63 = 37%
Formula =?Mo = 63.0%
F = 37%
Divide by their molar mass
Mo = 63.0 / 96 = 0.656
F = 37 / 19 = 1.947
Divide by the smallest
Mo = 0.656 / 0.656 = 1
F = 1.947 / 0.656 = 3
Therefore,
Formula of compound => MoF₃
Name of compound => Molybdenum trifluoride
2. Determination of the name and formula of the molybdenum fluoride having 56.0% of molybdenum.
Molybdenum (Mo) = 56.0%,
Fluorine (F) = 100 – 56 = 44%
Formula =?Mo = 56%
F = 44%
Divide by their molar mass
Mo = 56 / 96 = 0.583
F = 44 / 19 = 2.316
Divide by the smallest
Mo = 0.583 / 0.583 = 1
F = 2.316 / 0.583 = 4
Therefore,
Formula of compound => MoF₄
Name of compound => Molybdenum tetrafluoride
3. Determination of the name and formula of the molybdenum fluoride having 50.0% of molybdenum.
Molybdenum (Mo) = 50.0%,
Fluorine (F) = 100 – 50 = 50%
Formula =?Mo = 50%
F = 50%
Divide by their molar mass
Mo = 50 / 96 = 0.520
F = 50 / 19 = 2.632
Divide by the smallest
Mo = 0.520 / 0.520 = 1
F = 2.632 / 0.520 = 5
Therefore,
Formula of compound => MoF₅
Name of compound => Molybdenum pentafluoride
4. Determination of the name and formula of the molybdenum fluoride having 46.0% of molybdenum.
Molybdenum (Mo) = 46.0%,
Fluorine (F) = 100 – 46 = 54%
Formula =?Mo = 46%
F = 54%
Divide by their molar mass
Mo = 46 / 96 = 0.479
F = 54 / 19 = 2.842
Divide by the smallest
Mo = 0.479 / 0.479 = 1
F = 2.842 / 0.479 = 6
Therefore,
Formula of compound => MoF₆
Name of compound => Molybdenum hexafluoride
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S + 6 HNO3 --> H2SO4 + 6 NO2 + 2 H2O
In the above equation how many moles of water can be made when 28 moles of HNO3 are consumed?
AND
2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2O
In the above equation how many moles of water can be made when 76 moles of NH3 are consumed?
#1
2 mol of water is made when 6mol of HNO3 are consumed.Let moles of water can be made be x
[tex]\\ \sf\longmapsto \dfrac{2}{6}=\dfrac{x}{28}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{3}=\dfrac{x}{28}[/tex]
[tex]\\ \sf\longmapsto 3x=28[/tex]
[tex]\\ \sf\longmapsto x\approx 9mol[/tex]
#2
Let moles of water can be made be x
[tex]\\ \sf\longmapsto \dfrac{3}{2}=\dfrac{x}{76}[/tex]
[tex]\\ \sf\longmapsto 2x=76(3)=228[/tex]
[tex]\\ \sf\longmapsto x=114mol[/tex]
The substance that is dissolved in another substance to create
a solution is called the
Answer:
The substance that is dissolved in another substance to create a solution is a Solute. A Solute is a minor component in a solution which is a substance that is being dissolved, while the solvent is the dissolving medium. Solutions can be formed with many different types and forms of solutes and solvents.
When the water vapor rises into the atmosphere (Arrow C), it starts to cool and transform back into liquid water droplets. The result is the formation of a cloud. The process of water vapor turning into a liquid is known as:
Question 4 options:
filtration
evaporation
precipitation
condensation
Answer:
It is called condensation
Explanation:
Scientists believe the evidence to support the Big Bang Theory is that the Universe is________
Shrinking
Still expanding
Answer:
The Universe will continue to expand :)
Explanation:
Dark matter reverses the effect of gravity in some cases, and the Doppler effect also supports this claim, in which it states that the later the star has formed, the farther away it will be from the center/origin point of our universe.
Hope this helps! Mark me brainliest :)
Synesthesia can be described as a cross-wiring or comingling of the senses.
True
False
Answer:
true
Explanation:
synesthesia people can smell colors
Which best describes a meniscus?
Which of the following is NOT a correct ordering of subshells in the periodic table?
O 2p < 35
O 3d < 4p
O 3d < 45
04s < 4p
3d < 4s is NOT a correct ordering of subshells in the periodic table because 4s is at a lower energy level than 3d.
According to the Aufbau principle, The electron configuration of an element tells how electrons of that element are arranged in thier subshells from their lowest energy state before the highest energy state.
For example, before a 2s subshell can be occupied, A 1s subshell must be filled.
The orbitals are filled in this order:
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s,
For example, Na (sodium) with 11 atomic number is written as 1s2 2s2 2p6 3s1
Therefore,
2p < 3s True
3d < 4p True
3d < 4s False
4s < 4p True
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Which of these correctly describes the layer of Earth that has the highest temperatures?
The crust is the hottest because it is closest to the Sun.
The mantle is the hottest because it is the thickest layer.
The outer core is the hottest because it is composed of liquid rock.
The inner core is the hottest because it is under the most pressure.
Please English
Thank you:)
Answer:
The inner core is the hottest because it is under the most pressure.
Explanation:
brainliest please. . .
why is the Universal Law of Gravitation is a scientific Law and not a theory?
1) What is your Dawn Wall and how are you approaching it? What is the expected outcome? (Or, reflect on a 'Dawn Wall' in your past and discuss how you overcame it.)
2) Describe a few things that Kevin and Tommy had to overcome to realize their goal. (Or, describe what things had to be in order or exist for their goal to be realized.)
Which statement is an example of a scientific hypothesis?
A.
What type of fertilizer is best for growing beans?
B.
Only half of the bean plants grew over six inches.
C.
How long is the life cycle of a bean plant?
D.
Bean plants will grow best in well-drained soil.
Answer:
D
Explanation:
How many protons and neutrons are in the nucleus of zinc-72
Answer:
30 protons
Explanation: Each zinc isotope contains 30 protons, 30 massive, positively charged nuclear particles
30 protons, 34 neutrons, and 30 electrons.
Describing Rock Texture
Fermium-253 has a half-life of 0.334 seconds. How long will it take, in seconds, for a 96 atom sample to decay to 3 atoms?
The half life time period of decaying 96 atom sample to 3 atoms of Fermium-253 if it has a half-life of 0.334 seconds is 1.67 s.
What is half life time period?Half life time period is defined as the time interval which is required to decay the substance into half of its concentration. It is denoted by t(1/2).
As, atom decay in first half life time = 48 atoms.
Atom decay in second half life time = 24 atoms.
Atom decay in third half life time = 12 atoms.
Atom decay in fourth half life time = 6 atoms.
Atom decay in fifth half life time = 3 atoms.
So, we can see that in 5 half life time 96 atoms decay into 3 atoms.
So, time interval require to decay 96 atoms into 3 atoms is 5 × 0.334 = 1.67 s.
Thus, we concluded that the half life time period of decaying 96 atom sample to 3 atoms of Fermium-253 if it has a half-life of 0.334 seconds is 1.67 s.
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Each atom consists of a central nucleus and several shells that contain electrons. The outermost electrons are called valence electrons. Most atoms are stable with a configuration of eight valence electrons. This is known as the octet rule. How many valence electrons does each atom have? * 1 point
Explanation:
Not only did outermost electron determine the valence electron, but also periodic table. whatever group they fall into in periodic table each valence electrons present in a particular atom e.g K and Ca belong to group 1 and 2 respectively and k has 1 and Ca have 2 in each outermost electron
The table describes some characteristics of a layer of earth
Which layer is described by the data in the table?
crust
mantle
outer core
inner core
Answer:
crust .......
.........
How many more electrons does each oxygen atom need to be stable?
