Explanation:
Many transition metals cannot lose enough electrons to attain a noble-gas electron configuration. In addition, the majority of transition metals are capable of adopting ions with different charges.
The reason why transition metals do not have a predictable pattern should be explained below.
What are transition metals?It comprises many chemical elements that contains valence electrons with respect to the participation in the creation of the chemical bonds. The various transition metals should not lose sufficient electrons for attaining the noble gas electron configuration. The majority of the transition metal should be capable of adopting the ions with the distinct charges.
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Why do atoms with greater numbers of protons have greater electronegativity?
Which of these liquids are solutions? Check all that apply. water salt water soda orange juice coffee
Answer:
salt water, soda, orange juice, coffee
Explanation:
Answer: salt water, soda, orange juice, coffee
Explanation: On Edge!!!!!!!!
Which of the following is different in two isotopes of the same element?
the number of atoms
the number of electrons
the number of neutrons
the number of protons
Answer:
Different number of neutrons
Explanation:
Isotopes are different versions of an element, in which the only difference is that they have different numbers of neutrons in the nucleus, and therefore slightly different atomic masses.
A compound that contains only carbon and hydrogen that produces carbon dioxide and water when burned is called?
a binary compound
Sorry that I dont have an explanation....its just something that needs memorized :)
Hope this helps! Please correct me if I'm wrong!
A student in class drops an element on the floor and it shatters quite easily. Which property does this best exemplify?
Answer:
Glass
Explanation:
help please , i’ll give u extra points
Answer:
I think c
Explanation:
cuz it says it's only friction to the left and actual force to the right
List 2 reasons why metals are such great conductors.
PLEASE HELP THIS IS TIMED
Answer:
the atoms in the metals form a matrix through which outer electrons can move freely.
Explanation:
A flow of charged particles is an electric current. A metal has a built in supply of charged particles that can flow from one location to another- the pool of shared electrons.
A carbon rod and a copper rod were hit alternately with a hammer. The carbon rod broke into pieces. Which property of carbon does this observation indicate?
Answer:
Brittleness
Explanation:
hope this helps u
Answer:
Carbon is a non metal
Explanation:
Non metals are brittle.
What is the overall net charge of an ionic compound?
O 1-
O 1+
O 2-
O 0
The bumpy pattern on the soles of shoes is called the tread. Melanie and Keisha are at the store looking at the treads on different basketball shoes. They want new shoes so that they do not slide on the basketball court. Which of these situations produces the most friction between the shoes and the floor?
A girl with greater mass wearing shoes with more tread?
what is the most abundant metal in the earth's crust ?
Answer:
aluminium
Explanation:
I think I'm not Rly sure
Answer:
Aluminium
Explanation:
Percent abundance of given elements in the earth's crust are :
Oxygen - 46.6%
Aluminium - 8.1%
calcium-3.63%
gold-0.0011%
But oxygen is a non-metal and aluminium, calcium and gold are metals.
Therefore, Aluminium is the most abundant metal in the earth's crust.
What phase change is the following substance undergoing?
First, the particles of this substance are closely packed and
are not easily compressed. After the change, the substance
can flow easily but cannot be easily compressed.
a freezing
b melting
Cevaporation
d deposition
e sublimation
Answer:
b melting
Explanation:
The phase change the substance is undergoing is from solid to liquid and this is called melting.
To understand this process, we need to know the the substance changing. A substance that contains particles that are not easily compressed and packed is a solid. Solids have fixed shapes and volumes. Liquids can easily flow although they cannot also be easily compressed.The phase change from solid to liquid is facilitated by a melting process.
in the liquid state hydrogen is used as a fuel in
Answer:
Space Technology
Explanation:
B. Argue: Your classmate predicted the magnets are
going to repel because negative and positive charges
repel each other.
Explain why you agree or disagree. (I agree because
or I disagree because
I
Answer
they atract
Explanation:
Question 2 (1 point)
Given the following UNBALANCED equation,
Ca + HCl → CaCl2 + H2
what are the correct coefficients?
а
b
2,1,2,1
3,2,1,1
1,2,1,1
с
d
1,1,1,2
e
2,2,2,1
_____ are the deepest parts of the ocean floor.
A. Seamounts
B. Trenches
C. Mid-ocean ridges
D. Abyssal plains
Answer:
d
Explanation:
im trying i dont actuly know
The ocean floors are the seafloor or the ocean bottoms are called seabeds. The deepest part of the ocean floor is called trenches. Thus, option B is correct.
What is the classification of ocean floors?The ocean floors are said to be the seabeds that comprise of plains, mountains, and canyons, and are termed submarine relief. It ranges from the continental shelf, slope, rise, abyssal plain, ridges, and trenches.
The continental shelf is the first part and is at the least depth of the ocean floors, while the trenches are present at the greatest depth of the seabeds.
The trenches are the deepest part where the sunlight can not penetrate and ranges from 8000 meters and beyond. They are formed due to tectonic plate activity.
Therefore, option B. the trenches are the deepest part of the ocean beds.
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True or False, The crust is made up of different plates that can slowly move around?
Answer:
True
Explanation:
There is such thing called tectonic plated
Answer:
True
Explanation:
The crust is made of plates called tectonic plates that move as fast as your finger nails grow, the amount of movement can create both tall and deep earth wonders. Such as the Mariana Trench and Mount Everest. And it causes earthquakes when they slide together.
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What is a period on the Periodic Table? *
Each of the horizontal rows from left to right of the Periodic Table.
The columns from top to bottom of the Periodic Table.
The elements that are part of the noble gases.
Answer:
Explanation:En la tabla periódica los elementos están ordenados de forma que aquellos con propiedades químicas semejantes, se encuentren situados cerca uno de otro. Los elementos se distribuyen en filas horizontales, llamadas períodos.
List two adaptations the cave glow worm has for capturing prey in a cave
Answer:true
Explanation:
List two adaptations the cave glow worm has for capturing prey in a cave. droos a line of silk to trap palle - silk comes from glands in the mouth. a produces light to lure pret a insects are drawn towards light and get trapped in 3.
4 Al + 302 → 2Al2O3
If a chemist does the reaction and produces 3.5 moles of aluminum oxide, how many moles of O2 were used in the reaction?
According to the stoichiometry and given chemical equation ,5.25 moles of oxygen are used in the reaction to produce 3.5 moles of aluminium oxide.
What is stoichiometry?It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.
In the given chemical equation, 3 mole of oxygen produces 2 moles of aluminium oxide.
Therefore for 3.5 moles of of aluminium oxide to be produced 3.5×3/2= 5.25 moles of oxygen are used.
Thus, 5.25 moles of oxygen were used in the reaction to produce 3.5 moles of aluminium oxide.
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What property can be used to determine if a sample is a pure substance or a mixture?
Select one:
color
temperature
melting point
mass
Answer:
Melting point
Explanation:
Pure substances have sharp melting and boiling points while impurities lower the melting point and raise the boiling point
carbohydrates are called bio fuels why ?
Answer:
There are so many carbohydrate which acts as bio fuel...Few of them glucose ,Cellulose ,starchtion:as bio fuel...Few of
Someone help me pls!
Answer:Warm ocean currents originate near the equator and move towards the poles or higher latitudes while cold currents originate near the poles or higher latitudes and move towards the tropics or lower latitude.
Explanation:
In which of the following scenarios is a chemical change taking place? *
3 points
Quartz crystal fractures when struck.
Sugar dissolves when poured into tea
Liquid water turns to a vapor at 100 degrees Celcius.
Sodium metal reacts with water to form sodium hydroxide and hydrogen gas.
Answer:
The answer to this would be D. Sodium metal reacts with water
The correct option is D. Sodium metal reacts with water to form sodium hydroxide and hydrogen gas.
What is a chemical reaction?A chemical reaction leads to the transformation of a substance. The chemical bonds when bonds between reactants break and form a new chemical bond in products.
Quarts crystal fractures, when struck, is an example of physical change. Sugar dissolved when poured into tea is also a physical change. Liquid water turning to vapor at 100 degrees Celcius is an example of boiling.
When sodium metal reacts with water it will react with water and bonds between sodium and water reacts and will form sodium hydroxide and hydrogen gas.
Na(s) + H2O(aq) → NaOH(l)+ H2(g)
Therefore, The correct option is D. Sodium metal reacts with water to form sodium hydroxide and hydrogen gas.
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How is covalent bonding typically explained?
Answer:
Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.
whats the name of CaS?
Answer
Chemical formula or Chemical Abstracts Service
Explanation:
A CAS (Chemical Abstracts Service) Registry Number is a unique identifier that tells you, for example, that acetone and dimethyl ketone are actually the same substance.
Bridget is in science class. Her teacher gives her two unknown substances and asks her to determine their relative pH. She places a piece of red litmus paper into both substances. The litmus paper turns purple when she places it into substance I. The litmus paper turns blue when she places it into substance II.
Which of the following is true about the relative pH of the two substances?
A.
Substance I is an acid and substance II is a base.
B.
Substance I is a neutral substance and substance II is a base.
C.
Substance I is a base and substance II is a neutral substance.
D.
Substance I is a neutral substance and substance II is an acid.
Answer:
Substance I is a neutral substance and substance II is a base.
5 of 7 What percentage of a material will persist after 80 minutes if it's half life is 20 minutes?
Answer:
50
Explanation:
Please help ASAP !!!!!!!!!
Answer:
A. the speed at which reactants change to products over a given time
Explanation:
The rate of reaction is a measure of the speed of a chemical reaction. In chemical kinetics, the speed at which the reaction occurs is the reaction rate.
The measurement of the reaction rate is based on the disappearance of a reactant or appearance of the product with increasing reaction time. Rate of reaction depends on the: nature of reactants. concentration of the reactants or pressuretemperaturepresence of catalystsunlightHELP I WILL GIVE BRAINLIEST
