In a covalent bond:
A. None of these.
B. One atom accepts electrons from another.
C. The atoms attract each other but their electrons do not interact.
D. Both atoms share their electrons.
Answer:
D. Both atoms share their electrons.
Explanation:
The compound that forms between nitrogen and chlorine is
a. ionic
b. molecular/covalent
Answer:
Covalent bonding is a type of chemical bonding which is characterized by atoms sharing electrons. For nitrogen and chlorine to covalently bond, nitrogen needs 3 electrons. Chlorine only has one electron therefore two more chlorine molecules are needed. Because one atom of nitrogen needs 3 atoms of chlorine to bond, the formula will be NCl3.
Identify this reaction
HBr+ Al(OH)3 —-> H2O + AlBr3
Neutralization reaction
Hello, in the following reaction HBr is strong acid when reacts with Amphoteric Aluminium hydroxide gives water & AlBr3 as salt.
We know that in neutralization reaction
acid & bases reacts to give salt and water. Hence following reaction is neutralization reaction.
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Temperature is a measure of ____ of the particles in an object.
Answer:
Temperature is a measure of "average kinetic energy" of the particles in an object
Describe how the particles are arranged in a solid, liquid, and gas.
Answer:
Particles in a: gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
Explanation:
Which of the following is an example of a learned response?
A.
A bird avoids moths that make it sick after eating one.
B.
A person's leg moves when a doctor taps his or her leg with a mallet.
C.
A plant turns to follow the sun during the day.
D.
An adult salmon is able to return to the river where it hatched.
Calculate the volume occupied by 2.00 moles of H₂ at 300.0 K and 1.25 atm
Answer:
V = 39.38 L
Explanation:
Given that,
No. of moles of H₂, n = 2
Temperature, T = 300 K
Pressure, P = 1.25 atm
We need to find the volume occupied by the gas. We can use the ideal gas law to find it such that,
[tex]PV=nRT[/tex]
Where
R is gas constant, R = 0.08205 L-atm/mol-K
V is volume of the gas
Rearranging the above formula for V. So,
[tex]V=\dfrac{nRT}{P}\\\\V=\dfrac{2\times 0.08205\times 300}{1.25}\\\\V=39.38\ L[/tex]
So, the volume occupied by the gas is 39.38 L.
Consider 2 pots of water. Each pot has the same diameter, but pot A is deeper than pot B and so there is more water in pot A. If both pots are exposed to the same amount of heat for 5 minutes, which pot will contain the hottest water after 5 minutes? Why?
Answer:
POT B
Explanation:
Because Pot B contains lesser amount of water, it is going to have the hottest water compared to pot A.
Since the amount of heat is constant, in pot B less water molecules would share the heat, compared to pot A where a larger amount of water would have to share the heat.
What's the correct name for Pt3N5
Answer:Phosphate
Explanation:It is called phosphate because of this higher state (otherwise it would be called phosphite and be PO3+3 ).
why does iron have two kinds of valence number?
Answer:
The electronic configuration of iron is: Ar3d64s2. the two electrons in the 4s orbital are paired, and two of the electrons in the 3d orbitals are paired leaving four unpaired electrons. In general when you are populating the p, d, f, etc
Explanation:
hope dis help
define adhesion and give an example?
Similar to Cohesion, adhesion is the attraction between molecules of different substances . Water uses adhesion when it's attraction to another substance is greater than the water's attraction to itself. if you have ever dropped a cup of water on a hardwood floor,you know that it spreads out instead of foaming beads.
In a 0.100M solution of a weak polyprotic acid what is the equilibrium concentration of A-2?
H2A+H20-H30+A-2
Ka1=7.5x10^-5
Ka2=6.2x10^-8
answer= ?x10^?
What's the similarity between Gas and Liquid?
Answer:
Liquids and gases flow easily because their particles can move or slide past one another.
Explanation:
Hope this helped Mark BRAINLEST!!
CAN SOMEBODY PLS HELP...
Answer:
Maybe you could do something with nuclear power plants and how we use those to create electrical energy for our phones, houses etc?
3.0 moles of BaO are mixed evenly into a 2.0 L. What is the molarity of this
solution?
Answer: 1.5 moles/L
Explanation:
Molarity = moles/ Liters
to find the molarity of BaO: 3moles/2L = 1.5 moles/L
How many moles of gas are in a 30 liter compressed air tank if the
temperature of the tank is 300K and the pressure is 200 atmospheres? *
Answer:
B
Explanation:
is h2o a pure element or a compound
The Second Law of Thermodynamics states that the overall entropy of the universe (or any other isolated
system) can never decrease. Identify the systems to which the Second Law of Thermodynamics would
apply
a reaction vessel that is completely sealed and insulated
an open beaker containing an aqueous solution
a sealed glass flask that is not insulated
the Earth
Answer:
apply
does not
does not
does not
Explanation:
The Second Law of Thermodynamics is applicable to only a reaction vessel that is completely sealed and insulated as the entropy remains constant during such chemical change.
What is a chemical change?
Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical changes:
1) inorganic changes
2)organic changes
3) biochemical changes
During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
Learn more about chemical change,here:
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Weather conditions (high or low temperature) to the mineral wool.
Answer:
high temperature
Explanation:
Which best explains the importance of indicator species?
Answer:
Explanation:
ndicator species (IS) are animals, plants, or microorganism used to monitor changes in our environment. For example, they can tell us about the impact of pollution on an ecosystem, or how well an impaired environment is being managed or restored.
What's the force of a pitching machine on a baseball baseballs pitched by a machine
Answer:
CAN U HELP ME
Explanation:
PLS
Which industry would most likely be affected if coal recourses were depleted.
1.Power production
2.Transportation
3.construction
A reaction was suppose to produce 20 L of gas. Only 12 litters of gas were produced in the lab. What is the percent yield for this reaction?
Answer:
[tex]\boxed {\boxed {\sf 60 \%}}[/tex]
Explanation:
Percent yield is a ratio of the actual yield to the theoretical yield. It is found using this formula:
[tex]\% \ yield= \frac {actual \ yield}{theoretical \ yield} *100[/tex]
The actual yield is 12 liters, because that was actually produced in the lab.
The theoretical yield is 20 liters, because that was the expected yield.
[tex]\% \ yield= \frac {12 \ L}{20\ L} *100[/tex]
[tex]\% \ yield= 0.6*100[/tex]
[tex]\% \ yield= 60[/tex]
For this reaction, the percent yield is 60%.
Which statement BEST describes electromagnetic and mechanical waves?
A.
Electromagnetic waves and mechanical waves both do not require a medium.
B.
Mechanical waves require a medium and electromagnetic waves do not.
C.
Electromagnetic waves require a medium and mechanical waves do not.
D.
Mechanical waves and electromagnetic waves both require a medium.
Answer:
C I believe
Explanation:
True or false: Breaking down water into the elements hydrogen and oxygen is an example of a chemical change.
Answer:
True.
Explanation:
When water is decomposed into hydrogen and oxygen, chemical bonds are broken, chemical energy is released, and two new substances are formed from one.
Petrol used in cars is obtained by refining ?
Answer:
Crude oil is refined to make petrol (in America this is known as gasoline) or diesel. Most forms of transport use either petrol or diesel to power their engines - from lawnmowers, cars, buses and motorbikes to large ships and aeroplanes.
Help me please. I need to find the name of the oxides of the elements (N2O, SO3, Li2O, CO2, Al2O3, Cl2O, SO2, CrO3, MgO, CI2O5, K2O, BaO)
Answer:
Nitrous oxide,Sulfur trioxide, Lithium oxide, Lithium oxide,Aluminium oxide, Dichlorine monoxide, Sulfur dioxide, Chromium trioxide, Magnesium oxide,Dichlorine Pentoxide, Potassium oxide, Barium oxide
Explanation:
Which of these models shows the position of the sun moon and Earth that will have the LARGEST effect on the tides? _________
Answer: Your answer is J
Explanation: This can occur when moon is closest to earth.
So the moon in between earth and sun.
Also factually the moon can effect human behavior, because humans are made up of some percent of water.
what is the shape of graphite
Answer:
The molecular formula lists the symbol of each element within the compound followed by a number (usually in subscript). The letter and number indicate how many of each type of element are in the compound. If there is only one atom of a particular element, then no number is written after the element.
Find the molar mass of PCI3
Answer: around 137.33
Explanation: