Answer:
Very good :)
Explanation:
ANSWER QUICK!! IM GIVING 100 POINTS + BRAINLIEST FOR THE FIRST RIGHT ANSWER :)
Which are characteristics of the periodic table? (Choose all that apply.)
The elements that have been discovered so far can be found here.
It is arranged by the atomic number (number of protons).
The compounds that can be created are listed here.
It is arranged by all of the subatomic particles.
Answer:
A. The elements that have been discovered so far can be found here.
B. It is arranged by the atomic number (number of protons).
Explanation:
About the Answers:
All the elements that have been discovered are on the periodic table. Scientist know that there are still unknown elements and actually predict what they'll be like and what their properties are. The periodic table is arranged by the increasing number of atomic numbers. The atomic number is main identification of elements and is the amount of protons each element has.
About the Wrong Answers:
All the compounds that can be created are not found on the periodic table. In fact, there more than nine million organic compounds. The periodic table is not arranged by all of the subatomic particles. While the atomic mass and electron configuration is included, it is not arranged by it.
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Answer:
question pls.............
Can a molecule that has absorbed infrared radiation subsequently emit a photon with a wavelength in the uv region as a result?
yes
no
molecules cannot absorb infrared.
It is not possible that a molecule that has absorbed infrared radiation subsequently emit a photon with a wavelength in the UV region as a result.
Both infrared rays and ultraviolet rays belong to the electromagnetic spectrum. However, the infrared rays are lower in energy than the ultraviolet rays. Hence, infrared rays have a longer wavelength than ultraviolet rays.
This implies that it is not possible that a molecule that has absorbed infrared radiation subsequently emit a photon with a wavelength in the UV region as a result.
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After incubation of a set of O/F glucose tubes, the tube without mineral oil turned yellow, while the tube with mineral oil remained green. What does this indicate?
It might indicate NO fermentation and oxidation of glucose occurred. An oxidative organism breaks down glucose in presence of Oxygen, while a nonoxidative organism can break down glucose in absence of oxygen.
An Oxidation-Fermentation (OF)-glucose test is a microbiological test to determine how an organism is able to break down glucose.
In the first tube, a layer of mineral oil is added in order to reproduce anaerobic conditions, whereas this layer is not added to the second tube in order to reproduce aerobic conditions.
When the non-oil tube turns yellow, while the oil tube remains green, it means that the microorganism is oxidative (i.e., the microorganism only can metabolize glucose in presence of oxygen).
If both tubes remain green, it means that the test is negative and no fermentation/oxidation of glucose occurred.
If both tubes turn yellow, then the microorganism is oxidative and fermentative.
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why is gold not magnetic
Gold (Au) in its bulk form, like the metal in a wedding ring, is not considered a magnetic material. ... This means that metallic gold has no unpaired electrons, and it does not display classical magnetism. Gold was one of the first metal known to man. Gold is most malleable and ductile of all metals.
what’s the chemical formula for zinc (lll) sulfide?
Answer:
ZnS
Explanation:
Answer:
the chemical formula for zinc iii is ZnS
Solve for the missing values?
Help me plz!
Which of the following describes an action-reaction pair?
A. The Sun's gravity pulls on you, and Earth's gravity pulls on you.
B. Your backpack pulls down on your shoulders, and your feet push
on the ground.
C. Your feet push down on the ground, and the ground pushes up on
your feet.
D. You push on a wall, and your feet push on the ground.
PLEASE ANSWER QUICK WILL GIVE BRAINLIETS
Answer:
W.
Explanation:
When something is solid, the particles move less. Also, they move less when they are colder.
Write an equation between the carbonate and the acid
Answer:
In general an acid reacts with a carbonate or hydrogen-carbonate to produce a salt, carbon dioxide gas and water.
Phương trình hóa học là gì
Explanation:
sự xuất bản hóa học nào? có một câu hỏi về khoa học mà bạn cần giúp đỡ? tôi luôn ở đây để giúp đỡ!
which gas makes up more than 75% of the atmosphere?
A. Nitrogen
b. Water Vapor
c. argon
d. carbon dioxide
Answer:
its A
Explanation:
cause Earth's relatively thin atmosphere primarily consists of a mixture of nitrogen (75%) and oxygen (21%) gases.
Answer:
The answer to your question is A
Explanation:
Because Earth's relatively thin atmosphere primarily consists of a mixture of nitrogen (75%) and oxygen (21%) gases.
What is the wavelength of green light (in nm) with a frequency of 5.98 x 1014 s-1?
A) 5.02 x 10-7 nm
B) 1.99 x 10-6 nm
C) 502 nm
D) 545 nm
E) 5.45 x 10-7 nm
Answer:
502nm
Explanation:
wavelength=3×10^7/5.98×19^14
Match the part of the wave to the diagram
Group of answer choices
Q4
Q5
Q6
Q7
Answer:
The first high part is Q4, then the low part is Q7, the following high part is Q6, and the energy moving from the next two high points is Q5.
Explanation:
The first high part is Q4, then the low part is Q7, the following high part is Q6, and the energy moving from the next two high points is Q5 because of the diagram.
does titanium need to be processed before being used?
Answer:yes
Explanation:….
Answer:
It can be processed. It just has to be processed in batches, because it's not iron
Explanation:
What class of enzyme catalyzes addition of oxygen?
Answer:
The answer is Lyase
Explanation:
Any enzyme that catalyzes the addition or removal of the elements water (hydrogen, oxygen), ammonia (nitrogen, hydrogen), or carbon dioxide (carbon, oxygen) at double bonds, as defined in physiology. Decarboxylases, for example, remove carbon dioxide from amino acids, while dehydrases eliminate water.
PLEASE HELP ME!!
1)which pattern of inheritance controls the grow of beard in male humans?
2) A basketball player in the Philippine basketball association stands tall at 7'0. Which pattern of inheritance determines the expression of the height of an individual?
True or False. Photosynthesis and cellular respiration are OPPOSITE
chemical reactions
Answer:
Cellular respiration and photosynthesis are direct opposite reactions. Energy from the sun enters a plant and is converted into glucose during photosynthesis. Some of the energy is used to make ATP in the mitochondria during cellular respiration, and some is lost to the environment as heat.
Which resources are renewable resources?
Select all correct answers.
A. solar
B. natural gas
C. biomass
D. coal
E. hydroelectric
Answer:
Hey, so the correct answers would be,
Solar, Biomass and hydroelectric, Picture is for proof!
Explanation:
The resources are renewable solar, hydroelectric, and biomass.
What is a renewable resource?
Renewable resources are those which can be produced artificially again and again.
They do not pollute the environment.
These resources are already present in the environment, and we are consuming them.
Thus, the correct options are A. solar, C. biomass, E. hydroelectric.
Learn more about a renewable resource
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A sample of a compound has been analyzed and found to contain the following:
38.71% carbon, 9.75% hydrogen, and 51.54% g oxygen. If the molar mass of
the compound is determined by experiment to be between 62 and 63 g, what are
the empirical and molecular formulas of the compound?
Answer:
CH3O formula, C2H6O2 ACTUAL FORMULA
Explanation:
A sample of a compound has been analyzed and found to contain the following:
38.71% carbon, 9.75% hydrogen, and 51.54% g oxygen. If the molar mass of
the compound is determined by experiment to be between 62 and 63 g, what are the empirical and molecular formulas of the COMPOUND
empitical
take 100 gm of the compound
f O Divide by atomi wt of O to get moles
51.54/ 16.0 = 3.22
now if there is 1 atom of C and one of O, there will be 3 of H, so
CH3O is the empirical formula
the molar mass of the compound is 62-63. the mass of CH3O is
12 + 16 +3 = 31
2 X31 =62
so the compound is 2 times CH3O or C2H6O2
it most likely is
Ethylene glycol (name IUPAC: ethane-1,2-diol) is an organic formulated compound (CH2OH)2.
The currents in our experiment are between 0 and 20 nanoAmperes. How many electrons per second are passing an ammeter if it reads 10 nA
The number of electrons per second passing an ammeter if it reads 10 nA is 6.24 × 10⁹ electrons per second
Since our current reads 10 nA and we require the number of electrons per second passing through the ammeter, 10 nA = 1 × 10⁻⁹ C/s.
Since there are 1.602 × 10⁻¹⁹ C/electron, the number of electrons per second, n = current/electron charge
= 1 × 10⁻⁹ C/s ÷ 1.602 × 10⁻¹⁹ C/electron
= 1/1.602 × 10¹⁰ electrons
= 0.62422 × 10¹⁰ electrons per second
= 6.2422 × 10⁹ electrons per second
≅ 6.24 × 10⁹ electrons per second
So, the number of electrons per second passing an ammeter if it reads 10 nA is 6.24 × 10⁹ electrons per second
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11
Directions: Select each correct answer. More than one answer may be correct.
Which of the following affects the force of gravity between two objects?
the objects' densities
the distance between the objects
the objects volumes
圖
the objects masses
Reset
Submit
Answer:
The objects masses and the distance between the object.
Which particles are found in the nucleus of an argon atom?
A) protons and electrons
B) positrons and neutrons
C) protons and neutrons
D) positrons and electrons
Answer:
The answer is C
Explanation:
Protons and neutrons are found in the nucleus of an argon atom.
Based on the Lewis/electron dot representation
of the two atoms, predict the ratio of metal
cationic (+) atom to nonmetal anionic (-) atom in
the compound
•
Be•
••
•As•
•
A. 1:3
B. 2:1
C. 3:2
D. 1:1
Answer: I'm pretty sure the answer is 3:2
Explanation:
Help me out please!
Using Oxygen-16 as an example (identify the number of protons, neutrons, and electrons if):
a. Describe what would happen to the atom if a proton were added.
b. Describe what would happen to the atom if a neutron were removed.
c. Describe what would happen to the atom if two electrons were added.
Answer:
B. po
Explanation:
sana po makatulong
how does the arragenment of the electrons change as you move down the colums
Answer:
The number of electron shells is therefore the same across a period but increases when moving down a column.
Explanation:
since matter can never be created nor destroyed where do the new substances come from?
Answer:
The Law of Conservation of Matter states that matter can never be created nor destroyed, only conserved. New substances form when bonds break and new bonds form. The chemical properties of the new substances are different from those of the original substances.
atoms of the same element may contain:
Answer:
I think the answer is the same number of protons.
Explanation:
I think the same element contain same number of protons.
An electron which has quantum numbers _______________ is degenerate with an electron with quantum numbers n = 3, l =2, ml =1, ms = - 1⁄2.
Define kinetic energy and thermal energy
Answer:
Kinetic energy is the energy by ethicalness of article's movement while Thermal energy is the inner energy of an item because of the motor energy of its particles.
Explanation:
Answer:
Thermal energy:
Thermal energy is a type of energy that is formed by the vibration of atoms and molecules inside matter. The faster they vibrate, the more energy they contain. They also gain more heat.
Kinetic energy:
Kinetic energy is the mass/energy that is in moving objects. When an object speeds up, it gains more kinetic energy. All moving objects contain kinetic energy. The moving object gains energy due to its motion.
Note:
Sorry if this is a bad explanation but hopefully this helped!
