Answer:bromine
Explanation:
The mass of magnesium is 24 whereas 1 bromine atom is 80 (rounded up from 79.9) and there is 2 bromine atoms which means you have to multiply 80 by 2, giving you 160.
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A person is driving north in a car at a constant speed. A police officer is driving south toward him at a constant speed. The police officer uses a radar unit to measure the speed of the person’s car. The radar unit sends out waves of a certain frequency toward the person’s car. The waves reflect off the person’s car and travel back to the radar unit in the police car.
What happens to the frequency of the waves detected by the radar unit?
A )The frequency is lower as the person’s car approaches.
B) The frequency is higher as the person’s car approaches.
C) The frequency remains the same but with increased energy as the person’s car approaches.
D) The frequency remains the same but with decreased energy as the person’s car approaches.
5.
Inner shell electrons are not shared between atoms when they form
chemical bonds.
1.TRUE
2.FALSE
Yes, the statement is true because chemical bonds formed by sharing or transferring outermost electrons of an atom.
Why inner shells are not shared?Inner shell electrons are not shared between atoms when they form chemical bonds but the outermost electrons can form bonds with the atoms because they are easy to lose and share.
So we can conclude that the statement is true because chemical bonds formed by sharing or transferring outermost electrons of an atom.
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Why are large differences in temperature between the wet bulb and dry bulb thermometers are possible only at higher temperatures?
Answer:
At constant vapor pressure, the relative humidity decreases as the temperature increases, therefore, at higher temperature the relative humidity is low and water readily evaporates from the wet bulb thermometer that results in the cooling of the bulb such that at a given ambient temperature the very low relative humidity results in very large differences between the temperatures of the wet bulb thermometer and that of the dry bulb thermometer and the wet bulb is observed to be the colder thermometer of the two
Explanation:
Which pair of atoms can form an ionic bond?
A.
potassium (K) and fluorine (F)
B.
sodium (Na) and neon (Ne)
C.
fluorine (F) and chlorine (Cl)
D.
sodium (Na) and potassium (K)
Answer:
neon
Explanation:
Two 15.Kg objects are placed at four different distances from each other. At which distance would the two objects have the strongest gravitational attraction to each other?
Answer:
The strongest gravitational attraction between the two objects will be experienced when the distance between the two objects is smallest.
Explanation:
According to Newton's law of universal gravitation, the force of attraction between two objects is proportional to the products of their masses and inversely proportional to the square of the distance of separation between the two objects. This attraction between objects is known as gravity and it applies to all objects in the universe.
From the law of universal gravitation, since their is an inverse square relationship between gravitational force and the distance of separation between two interacting objects, an increase in the distance of separation will result in weaker gravitational forces. For example, if the distance of separation between two objects is increased by a factor of 2, then the force of gravitational attraction is decreased by a factor of 4 (since 2² = 4). However, if the distance of separation between the two objects is decreased by a factor of two, i.e. is halved, then the force of gravitational attraction is increased by a factor of 4.
Thus, the strongest gravitational attraction between the two objects will be experienced when the distance between the two objects is smallest.
The strongest gravitational attraction happens when the distance between the objects is smaller.
At which distance should we place the objects?We know that the gravitational force between two objects is inversely proportional to the square of the distance between the two objects.
This means that, because the mass of the objects does not change, the only thing that we can change to change the strength of the force is the distance between the objects, and because as we increase the distance the force decreases, we should select the smallest distance between the two objects.
Concluding, the strongest gravitational attraction happens when the distance between the objects is smaller.
If you want to learn more about gravity, you can read:
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Which is an example of a constructive force?
Answer:
Volcanic eruptions is an example of a constructive force i believe.
Answer: Sediment, Techtonic plates, Crust deformation, and Volcanoes
Explanation:
Sediment (Deltas, sand dunes, etc.)
Tectonic Plates Colliding (Mountains)
Crust deformation (Folding or Faulting)
Volcanoes (makes Islands)
Evaporation of sweat requires energy and thus takes excess heat away from
the body. Some of the water that you drink may eventually be converted into
sweat and evaporate. If you drink a 20-ounce bottle of water that had been in the
refrigerator at 3.8 °C, how much heat is needed to convert all of that water into
sweat and then to vapor?? (Note: Your body temperature is 36.6 °C. For the
purpose of solving this problem, assume that the thermal properties of sweat are
the same as for water.)
Design a plan to solve this problem. What must be considered in order to solve
this? Explain it in words. Actual calculations are not needed, but can be included.
Answer: 3.90 C
Explanation:
Which law represents a balanced chemical reaction?
A. Avogadro‘s hypothesis
B. Ideal gas law
C. Newton’s 1st law of motion
D. Newton’s second law of motion
E.Law of conservation of mass
Answer:
E.Law of conservation of mass
Explanation:
The amount of space is ___ and a common unit is ___.
A. mass, gram
B. volume, gram
C. mass, mL
D. volume, mL
Answer:
c
Explanation:
plz help me swear will mark you brainiest
Answer:
C
Explanation:
The nitrogen fertilizer with the highest percentage of nitrogen is urea.
What kind of mutations would X, Y, and Z represent?
How can a compound not conduct electricity as solid but do so when liquid?
HELP
Explanation:
Ionic compounds conduct electricity when molten (liquid) or in aqueous solution (dissolved in water), because their ionsare free to move from place to place. Ionic compoundscannot conduct electricity when solid, as their ions are held in fixed positions and cannot move.
is ammonia a compound element or mixture
Answer:
mixtyre
Explanation:
How can scientists use stoichiometry to ensure that commercial products contain the components that manufacturers claim they do?
Answer:
I know you have been waiting awhile for this question to be answered :)
Stoichiometry is used in industry quite often to determine the amount of materials required to produce the desired amount of products in a given useful equation. Each one of these products requires stoichiometry. There would be no products from these industries without chemical stoichiometry.
Explanation:
Hopefully this helps :D
Sorry you had to wait so long :(
help pleaseeeeeeeeeeee
We have 548 grams of CaCl2. How many molecules of CaCl2 do we have? (The molar mass of CaCl2 is 110.98 g/mol)
Group of answer choices
2.97 x 10^24 molecules
3.66 x 10^28 molecules
9.1 x 10^22 molecules
4.37 x 10^22 molecules
Answer:
Try everything
1.42 x 10^24 molecules
1.78 x 10^28 molecules
7.04 x 10^23 molecules
14.2 x 10^24 molecules
Explanation:
Light travel in __________ lines until reflected or refracted .
Answer:
Light travel in _____straight_____ lines until reflected or refracted
Scientists have disocovered a new virus that is very different from any known viruses. What type of matter is the virus most likely made of
Answer: d. Compounds made by bonding of atoms of known elements.
Explanation:
Viruses are said to be so numerous that they vastly outnumber the number of stars in the universe. Viruses are quite small and are not technically alive until they get into a living cell.
Viruses are made up of compounds like everything else but just because a virus has not been discovered does not mean that it is made of unknown material. Every natural element available has already been discovered so any new virus is made of compounds of known elements.
What is the ratio of the effusion rate of the helium to methane? (round to hundreds)
Answer:
2.00
Explanation:
From Graham's law; the rate of effusion is inversely proportional to the square root of the relative molecular mass.
Let the rate of effusion of Helium be R1
Let the rate of effusion of Methane be R2
Let the molecular mass of Helium be M1
Let the molecular mass of Methane be M2
Hence;
R1/R2 = √M2/M1
R1/R2 = √16.0294/4.0026
R1/R2 = 2.00
Which particle is NOT part of an atom?
Answer:
Magnetic Domain
Explanation:
An atom consists of nucleus and electrons revolving around it.
Nucleus is filled with proton and neutron.
So atom consists of electron, proton and neutron.
The magnetic domain is not present in an atom.
What do normal people call it?
Explanation:
crystal rocks blue ig
.
.
in which part of the sun would the most helium be found?
it's most abundant in the mid latitudes.
All three types of worms that undergo asexual reproduction use which process?
binary fission
budding
fragmentation
spore formation
Answer:
binary fission
Explanation:
i just took the quiz
Ammonia (NH3) is produced in the human body as a waste product during the digestion of protein. How many moles of N2 will be needed to produce 87.00 grams of NH3?
N2 + 3 H2 ® 2 NH3
Answer:
43.5
Explanation:
there are 43.5 moles of N2
When the first ball in a Newton's cradle is pulled back and released, it causes the final ball to move. What does this example of mechanical energy show?
A. Mechanical energy is energy in motion
B. Mechanical energy travels in waves
C. Mechanical energy is stored energy
Answer:
A.Explanation:
Mechanical energy is energy in motion is the example of mechanical energy⚡
Calculate the mass in grams of each sample.
4.68×1020 H2O2 molecules
Based on the absolute dating of the rock layers in this photograph, what could a scientist conclude about a fossil found in area A?A.It is exactly 1.4 million years old.B.It is between 1.4 million and 2.1 million years old.C.It is more than 2.1 million years old.D.It is less than 1.4 million years old. I WILL GIVE BRAINLYIST TO FASTST PERSON WITH RIGHT ANSWER HELP ASAP
Answer: sorry I'm late I was looking for an answer but the right answer is D. It is less than 1.4 million years old
Explanation:
I was looking for an answer and I took the test and got this right
Stay safe and hope this helps ^^
Answer:D.It is less than 1.4 million years old
Explanation:
it is approved from apec
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When completing your laboratory experiment, you placed 25.00 g of copper in the
graduated cylinder. Then you noticed the water level mark was filled to 50.0 ml. The total
mass of all the components is 58.80g. Know that the density of water is 1.0 g/ml, calculate
the density of this iron sample. Show all work.
Answer:
58.80/50= 2.352
Explanation:
kk
Which is the best explanation of why heat is released when
wood burns?
Select one:
A. Burning releases energy stored in chemical bonds.
B. Burning creates energy by increasing particle motion.
C. Burning destroys matter and creates energy from it.
D. Burning causes convection currents which create heat energy.
1 point
2. Due to its intricate network, minerals with sheet of tetrahedron do not
easily separate. *
True
False