Answer:
Since human wants are unlimited, and resources used to satisfy those wants are limited - there is scarcity. Even in the US, one of the richest countries in the world, there is scarcity -- if we use our new definition of SCARCITY.
hope it helps
The basis of the VSEPR model of molecular bonding is __________. Question 1 options: atomic orbitals of the bonding atoms must overlap for a bond to form regions of electron density in the valence shell of an atom will arrange themselves so as to maximize overlap electron domains in the valence shell of an atom will arrange themselves so as to minimize repulsions regions of electron density on an atom will organize themselves so as to maximize s-character Question 2 (1 point)
Answer:
Electron domains in the valence shell of an atom will arrange themselves so as to minimize repulsions
Explanation:
In accordance with VSEPR theory, the electron domains or electron pairs on the valence shell of the central atom in a molecule always position themselves as far apart in space as possible in order to minimize repulsions.
Recall that according to VSEPR theory, the shape of a molecule depends on the number of electron pairs or electron domains on the valence shell of the central atom of the molecule, both lone pairs and bond pairs. Lone pairs are known to cause more repulsions than bond pairs.
An unknown compound containing tellurium and bromine is analyzed
and it is determined that 28.53% of the compound by mass is
composed of tellurium.
How many moles of Te are present in 100.00 g of the compound?
Answer:
The correct answer is 0.22 mol Te.
Explanation:
First, we have to calculate the mass of Te in the sample. We simply multiply the sample mass by the percentage of Te (28.53%= 28.53/100)
100.00 g x 28.53/100 = 28.53 g Te
The molar mass of Te is 127.60 g. Thus, the mass of 1 mol of Te is 127.60 g. With this, we calculate how many moles of Te there are in 28.53 g of Te:
28.53 g Te x 1 mol Te/127.60 g Te= 0.223 mol ≅ 0.22 mol
Are you a fire alarm? Cause you're loud and annoying
Answer:
yaaaaa babdbabaaaa lolll
Explanation:
where else can you observe colorful light emisiions? are these emission applications related?
Explanation:
Some examples of colorful light emissions are street lights, neon signs and, of course, fireworks. Neon signs emit light when an electric current passes through the neon gas.
whats the meaning
Speed ?
and the
meaning of
of Motion?
At STP, a 50.-gram sample of H2O() and a100.-gram sample of H2O() have
Answer:
2
Explanation:
because it same volume
Which of the following is TRUE?
A. Lipids are fatty substances found in the blood.
B. Cholesterol is a type of lipid.
C. Triglycerides is a type of lipid.
D. All of the above
Answer:
The answer is D.
Explanation:
I learned about this last year. Its very simple if you let your parents or teachers explain it to you!
Answer:
All of the above
Explanation:
All the answers are correct. Lipids come in difference forms.
what is an isotope
A pitcher throws a 142 g baseball, which accelerates at a speed of 9 m/s^2. How much force does the pitcher apply to the ball?
Answer:
The answer is 1.28 NExplanation:
The force acting on an object given the mass and acceleration we use the formula
force = mass × accelerationFrom the question
mass = 142 g = 0.142 kg
acceleration = 9 m/s²
We have
force = 0.142 × 9 = 1.278
We have the final answer as
1.28 NHope this helps you
Answer:
1.28
Explanation:
In order for you to get the force you have to multiply the mass & acceleration. The baseball mass is 142 g and the acceleration is 9. So you will calculate 0.142 x 9 and that will give you 1.278. You will then round the 7 to an 8 and then you get the answer 1.28.
who said
"there are electrons dispersed evenly within a large area of positive material"
A. Rutherford
B. Schrodinger
C. Bohr
D. Thomas
Awnser: The awnser would be (D) Thomas
Explanation:
Use Quizlet
Suppose the quantum number rule for the angular momentum quantum number, I was
l = 0,1,2,...,l
Instead of
l = 0,1,2,...,l-1
Drag the text components into the boxes to create the Ar electron configuration for the new rule.
Explanation:
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Please help i don’t understand
DONT DO A RANDOM ANSWER OR ILL REPORT, ILL GIVE BRAINLIEST AND ALOT OF POINTS IF YOU SAY THE CORRECT ONE!! students who enjoy completing worksheets with specific directions are likely to be what kind of thinkers?
What happens when water turn’s into gas
Answer:
The process of turning water into gas is called evaporation. When water is heated, it changes state from a liquid to a solid. No mass is destroyed during the process, but rather, it is converted into gas.
Explanation:
Brainliest Plzzz!!!
Identify each of the pictures as heterogeneous or homogeneous
Answer : The image C shows homogeneous mixture and image A, B and D shows heterogeneous mixture.
Explanation :
Heterogeneous mixtures : It is a mixture in which the constituent substances are not mixed well and do not have a uniform composition throughout the mixture that means appears non-uniformly throughout the solution.
Homogeneous mixtures : It is a mixture in which the constituent substances are mixed well and have a uniform composition throughout the mixture that means appears uniformly throughout the solution.
From the given image we conclude that the,
image C shows homogeneous mixture and image A, B and D shows heterogeneous mixture.
PLZ HELP PLZ HELP HURRY 40 POINTS NO WRONG ANSWERS PLZ
Write balanced net ionic equations for the reactions, if any, that occur between
(a.) Fe2S3 (s) and HBr (aq)
(b.) K2CO3 (aq) and Cu(NO3)2 (aq)
(c.) Fe(NO3)2 (aq) and HCl (aq)
(d.) Bi(OH)3 and HNO3 (aq)
Answer:
a) Fe₂S₃(s) + 6H⁺(aq) ---> 6HBr(g) + Fe³⁺
b) Net ionic equation: Cu²⁺(aq) + CO₃²⁻(aq) ---> CuCO₃(s)
c) No reaction
d) Net ionic equation: Bi(OH)₃(s) + 3H⁺(aq) ---> Bi³⁺(aq) + 3H₂O
Explanation:
a) This is a double displacement reaction between solid iron(iii) sulphide and hydrobromic acid to produce hydrogen sulphide gas. The full and net equations of the reaction are given below:
Fe₂S₃(s) + 6HBr(aq) ---> 2FeBr₃ + 3H₂S(g)
Net ionic equation: Fe₂S₃(s) + 6H⁺(aq) ---> 6HBr(g) + Fe³⁺
b) This is a double displacement reaction between potassium carbonate and copper (ii) nitrate to produce insoluble copper (ii) carbonate. The full and net equations of the reaction are given below:
K₂CO₃(aq) + Cu(NO₃)₂(aq) ---> KNO₃(aq) + CuCO₃(s)
Net ionic equation: Cu²⁺(aq) + CO₃²⁻(aq) ---> CuCO₃(s)
c) No reaction as no precipitate is formed
d) This is a neutralization reaction between bismuth (iii) hydroxide and trioxonitrate (v) acid to produce sat and water. The full and net equations of the reaction are given below:
Bi(OH)₃(s) + 3HNO₃(aq) ---> Bi(NO₃)₃(aq) + 3H₂O(l)
Net ionic equation: Bi(OH)₃(s) + 3H⁺(aq) ---> Bi³⁺(aq) + 3H₂O
the male and female sex cells combine to form a
Answer:
zygote
Explanation:
In human beings, each gamete contains 23 chromosomes, half the number found in the other cells of the body. When the male and female gametes fuse, they become a zygote containing the full 46 chromosomes, half of which came from the father and half from the mother.
Answer:
zygote
Explanation:
In human beings, each gamete contains 23 chromosomes, half the number found in the other cells of the body. When the male and female gametes fuse, they become a zygote containing the full 46 chromosomes, half of which came from the father and half from the mother.
The area surrounding the nucleus is called: protons electrons neutrons electron cloud
Answer:
eletrons
Explanation:
eletrons is not in the neuclus its around it
Answer:
electrons can be found around the nucleus in an electron cloud.
Explanation:
What are the basic building blocks of proteins?
OA
starches
OB. electrolytes
Ос.
amino acids
OD
polyunsaturated fats
Answer:
Amino Acids
Explanation:
What Are Proteins Made Of? The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain.
Answer:
Amino Acids
Explanation:
GIVING BRAINLIEST I NEED ANSWER IN LESS THAN 5 mins!
Is this a scientific model? Use complete sentences to explain why or why not.
Answer:
its a scientific model
Explanation:
It is a scientific model because it is showing the water cycle. In the water cycle it is scientifically showing how water circulates through the Earth. For example, the water in the ocean evaporates which is evaporation, then it condensates into a cloud that then becomes condensation and the condensation makes precipitation when it rains. When it falls to the ground, it then becomes a runoff down a hill.
write the unit of electric charge
Answer: the electric charge is the atomic number
Stereoisomers share the same connectivity and differ only in the way their atoms are arranged in space. Draw the structure of a compound that is a stereoisomer of trans-1,2-dibromocyclobutane.(Note that the question asks for a different stereoisomer of the named compound and not the named compound itself.)Use the wedge/hash bond tools to indicate stereochemistry.Show stereochemistry in a meso compound.In cases where there is more than one answer, just draw one. (use same instructions below)
1b) Draw the structure of a compound that is a stereoisomer of cis-1,2-dimethylcyclopentane.1c) Draw the structure of a compound that is a stereoisomer of cis-1,2-dimethylcyclobutane.
Answer:
Explanation:
A stereoisomer refers to an isomer that shares an identical bonding structure but differs in the geometric position of functional groups and atoms.
Stereoisomers are molecules which have the same semi-expanded formula, but a different arrangement in space.
They are isomers with a similar structural formula, yet which contrast just in their spatial geometry.
From the given question, we are provided with some set of instructions to draw the structure of the following compounds.
stereoisomer of trans-1,2-dibromocyclobutane
cis-1,2-dimethylcyclopentane
cis-1,2-dimethylcyclobutane
The diagram for each compound given can be seen in the attached file below.
What are colliding when plateaus and mountains ranges are formed
Answer:
mountain ranges form when pieces of Earth's crust—called plates—smash against each other in a process called plate tectonics, and buckle up like the hood of a car in a head-on collision.
Hope that answers your question.
what feature has disneyland's management added to lengthen the visitor's stay
Answer:
where are the options?
Explanation:
Eukaryotes share which characteristic with prokaryotes?
•lysosomes
•vacuole
•mitochondria
•cell membrane
Answer:
cell membrane is the answer
Answer: cell membrane
Explanation:
An object that is 0.5 m above the ground has the same
amount of potential energy as a spring that is stretched
0.5 m. Each distance is then doubled.
How will the potential energies of the object and the
spring compare after the distances are doubled?
O The gravitational potential energy of the object will
be two times greater than the elastic potential energy
of the spring.
O The elastic potential energy of the spring will be four
times greater than the gravitational potential energy
of the object.
The elastic potential energy of the spring will be two
times greater than the gravitational potential energy
of the object
O The potential energies will remain equal to one
another
The elastic potential energy of the spring will be two times greater than the gravitational potential energy of the object.
Answer:
C.) The elastic potential energy of the spring will be two times greater than the gravitational potential energy of the object.
Explanation:
Hope this helps! Sorry if I am wrong. ;-;
What two particles are found in the nucleus of an atom?
Answer: it has one proton and electron
Explanation:
Most of the dissolved substance in sea water is: hydrogen chloride nitrogen sodium ANSWER NOW! I NEED HELP ASAP! WILL GIVE BRAINLIEST!
Answer: Sodium chloride
Explanation:
Ocean water contains a number of substances. When a substance which has ionic bonds is dissolved in water it takes the form of ions.
The most common ions in ocean water are sodium and chloride. These are the ions formed when common salt, sodium chloride (NaCl) is dissolved in water.
Sodium chloride accounts for about 3% of ocean water by mass.
Answer:
By far, the most abundant elements are hydrogen and water.
Explanation:
The analysis of the 77 sea water samples taken during the Challenger's 3-year voyage did much to lay the foundations for determining the chemical content of sea water. By far, the most abundant elements are hydrogen and water (combined to make water). Together, these elements make up 96% of sea water. Sodium chloride and magnesium make up just under 4% of sea water. Trace amounts of 97 other elements are found in the remaining 0.08%. Of the trace elements, calcium, potassium, sulfur, and bromine are the most abundant.
This is directly from the text.
The molar mass of SO3 is grams.
Answer:
80.07 g/mol
Explanation:
Step 1: Define
Molar Mass S - 32.07 g/mol
Molar Mass O - 16.00 g/mol
Step 2: Find molar mass of compound
S = S × 1 = 32.07 g/mol
O₃ = O × 3 = 48.00 g/mol
32.07 + 48.00 = 80.07 g/mol
Answer:
80.06 grams
Explanation:
Edmentum!!