I lil one nice to meet you and how is your day
specific gravity of a vegetable oil is 0.85. What is its density?
The chemical reaction represented as “AB ⇒ A + B” is a ______
Answer:
Below
Explanation:
This would be a decomposition reaction. This occurs when a compound breaks down into 2 + simpler substances. We can see this from AB --> A + B, one compound (AB) breaks down into 2 simple substances ( A and B ).
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6.3 gram of HNO3 as mass of nitrate
Moles of HNO 3
= 6.3/63 = 0.1 moles
HNO3 has 1 atom of H , 1 atom of N , 3 atoms of O
No of atoms = moles of molecule × atomicity of atom × avogadro number
No of atoms of H =0.1×1×6.023×10^23
= 6.023×10^22
No of atoms of N =0.1×1×6.023×10^23
= 6.023×10 ^22
No of atoms of O =0.1×3×6.023×10 ^23
= 18.069×10 ^22
why does beryllium not liberate hydrogen from acid readily
How does the electronic configuration of an element give information about the period and the group it belongs to
Answer:
Electronic configuration of an element gives the information of valence electrons and number of shell present in the element.
Explanation:
Electronic configuration of an element gives the information of valence electrons and number of shell present in the element. We get the information of group number after knowing valence electrons.
The number of shells present in an element is equal to the period number. Thus, by knowing electronic configuration we know the group number and period number of an element, and the position of an element in the periodic table.
An element's electronic configuration, which identifies both its period and group, gives important details regarding its place within the periodic table.
The major energy level (shell) where the outermost electrons are found determines the period. In the electrical arrangement, the period number corresponds to the greatest energy level. The number of valence electrons, which are the electrons at the highest energy level, which are present in an element determines its group or family. Because they have the same valence electron configurations, elements in the same group exhibit comparable chemical characteristics. In conclusion, the electronic configuration helps us comprehend an element's chemical behavior and interactions with other elements by revealing an element's period based on energy levels and its group based on valence electrons.
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what is chemical change ?
[tex]\huge{ \color{violet}{ \boxed{ \color{hotpink}{Answer}}}}[/tex]
➣ Chemical ChangeIt occurs when new materials are formed by a change in the way the atoms are bonded together.Heat, light or electrical energy is often emmitted or absorbed.[tex] \: [/tex]
[tex]\large\tt\:⚘ \: MishiChaeYoon \: ⚘[/tex]
Is it me or is this year moving very fast?
Does anyone even remember Easter?
Answer:
I think you are moving fast my friend,but i don't remember Easter.
Answer:
yo fr i dont even remember last year christmas
Explanation:
The one factor that a scientist changes in an experiment is called the
O
A responding variable.
O
B. hypothesis.
C. controlled variable.
D. manipulated variable.
Answer:
It might be responding variable.
write the chemical formula of the following compounds sodium sulfate magnesium chloride aluminum nitrate ammonium sulfate
Explanation:
Magnesium chloride = MgCl₂
aluminum nitrate= Al(NO₃)₃
ammonium sulfate=( NH₄)₂SO₄
An atom has 30 protons and 30 neutrons. What is its mass number?
Mass number=No of protons+No of neutrons
[tex]\\ \sf\longmapsto Mass\:No=30+30[/tex]
[tex]\\ \sf\longmapsto Mass\:No=60[/tex]
Explanation:
Here,
Protons(p+)=30
Neutrons(N⁰)=30
We know,
Atomic mass(z)=(P+)+(N⁰)
=30+30
=60
will it sink or float?
giving brainlist
Answer:
Air will Float
Ice will Float.
aluminium will sink
Lead. has to sink
Gold will sink
Ethanol it will nor sink or float. it is like neutral.
methanol will Float.
Explanation:
may it helps you.
Mark me brainlist if it helps you
The Scanning Electron Microscope, or SEM, uses beams of_______
residue from bullets or ink from a ransom note.
Electricity
Protons
Neutrons
Electrons
Answer:
Electrons.
Hope it helps.
What is sulfuric acid? Briefly
Answer:
Sulfuric acid or sulphuric acid, also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with the molecular formula H₂SO₄. It is a colorless, odorless and viscous liquid that is miscible with water.
Explanation:
Explanation:
Sulfuric acid is a colourless oily liquid. It is soluble in water with release of heat. It is corrosive to metals and tissue. The major use of sulfuric acid is in the production of fertilizers . Sulfuric acid, sulfuric also spelled sulfuric (H2so4) , also called oil of vitrod. Sulfuric acid is a very important commodity chemical , and a nation's sulfuric acid production is a good indicator of it's industrial strength.
Technician A says it is OK to have poor safety practices because you can always clean up the mess. Technician B says keeping a high standard of personal hygiene and cleanliness is important so that you get into the habit of washing off harmful materials as soon as possible after contact. Who is correct? Select one: a. Technician A O b. Technician B O C. Both A and B O d. Neither Anor B
Which of the following compounds has the lowest percent gold content by mass which one has the highest percent gold content by weight?
a. AuOH
b. Au(OH)3
c. AuCI3
d. AuI3
Answer:D. AuI3
Explanation:
Evidence for the Big Bang Theory
Group of answer choices
The amount of Lead and Iron in the Universe
Discovery of the Cosmic Background Radiation
Stars are like fires from the explosion
Answer:
2nd one
Explanation:
Big bang echo other ones make no sense.
What is the name of this molecule?
A. Hexane
B. Hexyne
C. 2-pentane
D. Pentane
7. Which of the following is not part of the proper protocol for using acids and bases?
A. Wearing protective clothing while handling
B. Storing acids and bases below 10°C
O C. Storing acids and bases in separate areas
D. Add acid to water, not water to acid
Answer:
D. Add acid to water, not water to acid
Convert 4752 meters into miles
Answer:
2.935 miles
Explanation:
because when you convert feet into miles, it all adds up
Explain why there was a reaction between zinc metal and a salt solution of copper sulphate please help me
Answer:
When zinc is added to copper sulphate (CUSO4) solution due to more reactivity of zinc, cooper is replaced by the zinc and forms zinc sulphate. During the process, the colour of the solution changes from blue to colourless.
Rain soaks into the soil or runs off into oceans, rivers, and lakes. ___________ which process is this
Answer:
The water falls to the earth as precipitation, such as rain, hail, sleet, and snow. When precipitation reaches the earth's surface, some of it will flow along the surface of the land and enter surface water like lakes, streams, and rivers, as runoff. The rest of it soaks or percolates into the soil, called
Which of the following is a result of increasing the temperature of a system that includes a reaction in the forward direction that is exothermic?
a) The equilibrium constant decreases.
b) The concentrations of the products increase.
c) The equilibrium constant increases.
d) The concentrations of the reactants decrease.
Answer:
I believe the answer your looking for is out of A or B
Explanation:
Option B because if the heat increases its essentially causing the concentration to increase by replacing the weak bonds with stronger ones
In increasing the temperature of a system that includes a reaction in the forward direction that is exothermic, the concentration rises as weak bonds are replaced by stronger ones.
What is the temperature of a system?The average kinetic energy of the atoms or molecules in a system is measured by temperature. No heat is transmitted between two objects in thermal equilibrium, according to the zeroth law of thermodynamics.
In conclusion, as the temperature of the system rises, the concentration rises as weak bonds are replaced by stronger ones.
Read more about Temperature
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Write electronic configuration of Na and Ca on the basis of subshell.
Na:-
Sodium has 11 electrons so the EC followed by
[tex]\\ \sf\Rrightarrow 1s^22s^22p^63s^1[/tex]
Ca:-
Calcium has 20electrons so the EC followed by
[tex]\\ \sf\Rrightarrow 1s^22s^22p^63s^23p^63d^2[/tex]
How can the Swartz process be modified to work for bacteria?
Answer:
https://swartzbiotechnologylab.sites.stanford.edu/research
Explanation:
which atom can gain electrons lose electrons and how many ? if sodium is -2,8,1/and chlorine is -2,8,7
Answer:
A sodium atom can lose its outer electron. It will still have 11 positive protons but only 10 negative electrons. So, the overall charge is +1.
The density of aluminum is 2.70 g/mL. What is the mass of a 15.9 cm X 11.6 cm X 7.3 cm block of aluminum?
Hi, the answer is 3510g
Step-by-step explanation:-
We know that density of a substance tells us the mass of exactly one unit of volume of given substance. In this question,
Aluminium density = 2.70g/mL
So,
V = L x W x H = 1300 cm³ = 1300 mL
m = D x V = (2.70 / 1300) = 3510g
Subject:.
Date:
8 a) vinyl
chloride C₂H₂ is prepared by the reaction of ethyne gas C₂H₂ with hydrochloric
acid, HCl.
Answer:
Yes it is true
Explanation:
vinyl chloride is prepared by c2h2+hcl. Since vinyl chloride is formed after ETHYNE IS MIXED WITH CHLORIDE.
1.List three (3) importance of photosynthesis to our ecosystem. a) b) c)
Answer:
It is the number one source of oxygen in the atmosphere. It contributes to the carbon cycle between the earth, the oceans, plants and animals. It contributes to the symbiotic relationship between plants, humans and animals. It directly or indirectly affects most life on Earth
Answer:
three importance are
it helps in fixing and balancing the amount of carbon dioxide and oxygen in the atmosphere
it provides the nutrition to the plant
it helps the. plant in its growth
What is light energy absorbed by?
Answer:
I think in the light-dependent reactions, energy absorbed by sunlight is stored by two types of energy-carrier molecules: ATP and NADPH. The energy that these molecules carry is stored in a bond that holds a single atom to the molecule. For ATP, it is a phosphate atom, and for NADPH, it is a hydrogen atom.
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The lines of latitude are measured
from a line at the center of the Earth
called the
Answer:
parallels
Explanation:
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