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Bose-Einstein condensates _____.
were predicted in the 1920s
have atoms that have lost their unique properties
occur when atoms stop moving
all of the above
Answer:
All the above
Explanation:
Just did a quiz (:
what is Metallic Characteristics
Answer:
metallic characteristics refers to the level of reactivity of a metal. Metals tend to lose electrons in chemical reactions, as indicated by their low ionization energies. Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities.
Explanation:
In 1770, ___________ published the first map of the Gulf Steam.
Group of answer choices
Ben Franklin
Nevil Maskelyne
J. F. W. DeBarres
Answer: Ben Franklin
Explanation: Hope this helps! :)
Answer:
Ben Franklin
Explanation:
Remember black lives matter and vote Joe Biden
A student reported to her instructor that her unknown contained salt, salicylic acid, and sand. In reality the unknown contained only the first two components, but no sand. What might have led the student to believe sand was present in the unknown? How could the substance be tested to determine if it was actually sand?
Answer:
Explanation:
From the information given:
The unknown contained salt, salicylic acid, and sand.
It is okay for the student to believe that the sand is present in the unknown, but if we carry how a scientific experiment, we will confirm such a hypothesis if it is right or wrong.
For a test containing salt, salicylic acid, and sand.
We know that the salt is soluble in water, but salicylic acid is sparingly soluble i.e., lightly soluble, and sand is insoluble in water.
So, we will add the unknown mixture into the water. The salt will eventually dissolve first, and then the salicylic acid will dissolve lightly.
Afterward, we will heat the mixture to evaporate the salicylic acid to evaporate, leaving us with the salt.
If there is a positive result of her claim that there is some presence of sand in the evaporated salt sample, that might result from impurities.
How does warm water at the surface of the ocean
become colder?
Answer:
Explanation:
Heat energy always moves from hot to cold. The sunlight doesn't reach certain parts of the ocean due to it being so deep. The water above it absorbs it. So because this top water absorbs all the heat/energy, it is a lot warmer and is constantly transferring heat to the colder parts through kinetic energy. The warmer water has particles that have way more kinetic energy than the cold particles below it. And more kinetic energy means more movement, so that's why they transfer their heat to the colder particles.
I dont actually know if Im correct or not. Im just guessing based on what I know about physics.
Rick designs an experiment to see how sunlight affects plant growth. He places identical plants in front of three windows. Window A has the shades all the way up. Window B has the shades halfway down. Window C has the shades all the way down. He waters them all with the same amount each day. After a week, he measures their growth.
What is the independent variable in his experiment?
Answer:
the shade/light is the independent variable
Explanation:
Answer:
the independent variable is the light and or shade.
Explanation:
because the light and the shade are going to both effect the growth.
and ive done this before haha well hope this helped
Apply the law of conservation of matter
Answer:
in science a lot as a general statement that explains a large number of observations before being accepted a llama be verified many times under many conditions law are therefore considered the highest form of scientific knowledge and are generally thought to be inviolable scientific laws for form the core of scientific knowledge 1 scientific law that provides the foundation for understanding in chemistry is the law of conservation of matter states that in any given system that is closed the transfer of matter in an out the amount of matter in the system stays constant the concise way of expressing this law is to say that the amount of matter in a system is conserved
Which of the following is the best reason to read directions carefully before beginning any type of lab?
A. so that you can perform the experiment quickly
B. so that you can ask questions about steps you do not understand
C. so that you can answer all questions at the end of the lab
D. so that you can decide when is the best time of day to complete the lab
Answer:
B
Explanation:i think
Lithium has an atomic mass of 6.941 amu. Lithium has two common isotopes. The one isotope has a mass of 6.015 amu and a relative abundance of 7.49%.
What is the abundance of the other isotope?
What is the mass of the other isotope?
Answer:
The atomic mass of second isotope is 7.016
Explanation:
Given data:
Average Atomic mass of lithium = 6.941 amu
Atomic mass of first isotope = 6.015 amu
Relative abundance of first isotope = 7.49%
Abundance of second isotope = ?
Atomic mass of other isotope = ?
Solution:
Total abundance = 100%
100 - 7.49 = 92.51%
percentage abundance of second isotope = 92.51%
Now we will calculate the mass if second isotope.
Average atomic mass of lithium = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
6.941 = (6.015×7.49)+(x×92.51) /100
6.941 = 45.05235 + (x92.51) / 100
6.941×100 = 45.05235 + (x92.51)
694.1 - 45.05235 = (x92.51)
649.04765 = x 92.51
x = 485.583 /92.51
x = 7.016
The atomic mass of second isotope is 7.016
What is the order from largest to smallest: galaxy, universe, star, asteroids, planets, moons, solar system?
Answer:
Universe, galaxy, solar system, star, planet, moon and asteroid.
Explanation:
You're welcome!
Answer:
Universe, galaxy, solar system, star, planet, moon and asteroid
Explanation:
During the process of Photosynthesis, light/ radiant energy is transformed in to chemical energy.
solar
energy
Photosynthesis
6C0, + 6H20
C.H,206 + 602
glucose oxygen
water
carbon
dioxide
True
O False
What is the electron configuration of an element with an atomic
number of 10?
Explanation:
From the periodic table the element with atomic number 10 is neon and this element is a noble gas.
It's electron configuration is
[tex]1 {s}^{2} \: \: \: \: \: 2 {s}^{2} \: \: \: \: \: 2 {p}^{6} [/tex]Hope this helps you
What is the median number of seeds that germinate at 24*C
Answer:
80. Sorry if I am wrong.
Explanation:
Chuck wants to know how many electrons in an atom are not paired up. Which model would be best for Chuck to write
out?
a set of quantum numbers for the last electron in the atom
a configuration with numbers, letters, and superscripts
a dot structure of the atom
an orbital notation of the atom
Answer:
D. an orbital notation of the atom
Explanation:
Orbital notiation uses lines and arrows to show shells, subshells, and orbitals for electrons in an atom. Since it shows arrows being paired up in this diagram it would be the best model for Chuck to use.
On Edgenuity2020, the answer is D) an orbital notation of the atom
PLS PLS PLS HELPPP How is clay deposited to form shale?
A. Water deposits clay in thin, flat layers.
B. Water deposits clay in thick, flat layers.
C. Water deposits clay in thin, uneven layers.
D. Water deposits clay in thick, uneven layers.
Write the difference between compound and mixtures ?
Answer:
The mixture contains two or more substances mixed, but neither chemically as well as not in inexact quantity while compound includes two or more elements combined chemically and in a fixed ratio. Pure substances are made up of elements and compounds
Hope this helps!
clouds form when water vapor in the atmosphere
A-evaporates
B-condenses
C-runsoff
D-precipitates
Answer:
A- evaporates
Answer:
Condenses
Explanation:
Clouds are created when water vapor, an invisible gas, turns into liquid water droplets. These water droplets form on tiny particles, like dust, that are floating in the air.
Right the formula for finding the wavelength of a wave. What is
the value of c?
Answer:
Divide the energy by Planck's constant, 6.626 x 10-34, to get the frequency of the wave. Divide the speed of light, ~300,000,000 m/s, by the frequency to get wavelength.
plz mark brainliest
Which element does the electron configuration 1s22s22p2 represent?
B
C
N
K
Answer:
Explanation:
carbon cause that has 6 electrons .
Answer:
it is carbon
Explanation:
1s2 2s2 2p2 add all the 2 and you get 6 so it is carbon
what is the highest occupied energy level for gold
Answer:
Number of Energy Levels: 6
Explanation:
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 18
Fourth Energy Level: 32
Fifth Energy Level 18
Sixth Energy Level 1
Write 6319857 in scientific notation
Answer:
6.319857 * 10 to the power 7
Answer:
6.319857*10 to the 7th power
Explanation:
A volcano violently erupts near a small town and wildlife preserve. Which effect might occur?
1. Some local species develop new adaptations
2. New species form at the wildlife preserve
3. Many wildlife species become extinct
4. Ash and dust fill the air and reduce sunlight
If anyone knows the answer it would help a lot, thanks
Answer: In real sense, all of these things could happen. But the one that would suit this question would most definitely be 4.
Explanation:
Answer:
D. Ash and dust fill the air and reduce sunlight.
Explanation:
took the test
uestion 1
This scientist thought that all matter was composed of small, indivisible atoms.
-
Thomson
Bohr
Rutherford
Dalton
Schrodinger
What is the name of the process that determines what was difficult or easy to separate oxygen from iron ores
Answer:
Iron is extracted from iron ore in a large container called a blast furnace. Iron(III) oxide is reduced to molten iron when it reacts with carbon.
Explanation:
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Be
Name the element.
Number of shells?
Valence electrons?
Answer:
Name the element: Beryllium
Number of shells: 4
Valence electrons: 2
Explanation:
What is the formula for weight ?
Answer:
W=F=mg or W=mg
Explanation:
Which of the following is a formula for a hydrocarbon? Question 17 options: CH4 CH2O CH3OH HCOOH
Answer:
CH4
Explanation:
Hydrocarbons are composed of hydrogen and carbon only.
CH4 is a formula for a hydrocarbon. Hence option a is correct.
What is chemical formula?Chemical formula is defined as a technique of expressing the chemical ratios of atoms that make up a certain chemical compound or molecule using chemical element numbers and symbols. The components of a compound's molecules are identified in its chemical formula, as well as the ratio in which the components' atoms mix to form those molecules.
A hydrocarbon is any of a group of organic compounds comprised only of the atoms carbon (C) and hydrogen (H). The structure of the complex is built up of carbon atoms, and hydrogen atoms attach to that framework in a variety of ways. chemical substance Study up on chemical substances.
Thus, CH4 is a formula for a hydrocarbon. Hence option a is correct.
To learn more about chemical formula, refer to the link below:
https://brainly.com/question/29031056
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Convert 22.0 mL to L
A pure, liquid substance is held over a heat source. Slowly, all of the liquid evaporates and transforms into a gas, which is captured by a balloon.
The gaseous substance and the liquid substance
A.
have different masses.
B.
have the same volumes.
C.
have different compositions.
D.
have the same composition.
Answer:
Its D. have the same compostion
Explanation:
Dont haveaan explation i got it wrong and the real answer popped up
Use the periodic table to identify the number of core electrons and the number of valence electrons in
each case below. Argon (Ar): [NE] 3s^23p^6
Answer:
10 core electrons and 8 balance electrons
Explanation:
