Answer: Internalized Crystal Structure
Explanation:
"The exact and unique arrangement of atoms, ions or ionic groups is the characteristic feature of each crystallized mineral."
- S.K. Haldar & Josip Tisljar, authors of Mineralogy and Petrology
A mineral's unique and specific crystal structure determines the physical properties such as color, hardness, density, luster, crystal form, cleavage and fracture.
A light wave has a frequency of 5 x 1014 Hz and a speed of 3 × 10 m/s. Use
the wavelength equation to calculate the wavelength.
A light wave which has a frequency of 5 x 1014 Hz and a speed of 3 × 10 m/s has wavelength is 0.6 × 10^-6.
Wavelength is defined as the separation between two identical points (adjacent crests) in adjacent cycles as the signal travels through space or along a wire.The number of cycles or vibrations that a body in periodic motion experiences during one unit of time, as well as the number of waves that pass a fixed point in a unit of time is called Frequency. Frequency is expressed in Hertz (Hz).Speed of light, the rate at which light waves move through various substances. Specifically, the speed of light in a vacuum is presently calculated to be 3 × 10⁸ m/s.Frequency of light wave = ν = 5 × 10¹⁴ Hz
Speed of light c = 3 × 10⁸ m/s
we have to find out wavelength λ of light wave
We know that,
c = λ × ν
λ = c / ν
= 3 × 10⁸ / 5 × 10¹⁴
0.6 × 10^-6
Therefore, wavelength of light wave is
0.6 × 10^-6
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7. Would a larger sample give you the same answer (atomic mass), a more accurate answer or a less
accurate answer? Explain.
Answer: The same answer
Explanation: I believe atomic mass should remain the same regardless of the amount of substance you have. Carbon for example has an atomic mass of 12. Regardless of if you have 1 mole or 120 moles of Carbon, it is still a mass of 12.
Question in picture
Question in picture
The correct answer is a sphybridisation in z coordinate.So to form sphybridisation we need a s orbital and a p orbital .
In genomics, hybridization is the process by which two complementary single-stranded DNA or RNA molecules bond together to form a double-stranded molecule.The bonding is determined by the correct base pairing between the two single-stranded molecules. When one s and one p orbital in the same main shell of an atom combine to form two new equivalent orbitals, this is referred to as sphybridization.
The newly formed orbitals are known as sphybridized orbitals. It forms linear molecules with a 180° angle. Atomic orbitals include both s and p orbitals. These orbitals represent the most likely region in which we can find an electron of that atom. The primary distinction between s and p orbitals is that s orbitals are spherical in shape, whereas p orbitals are dumvell-shaped.So to form sp hybridisation we need a s orbital and a p orbital .
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calculate the energy required to excite an electron from n=2 to n=4
Explanation:
taking atom as hydrogen than
answer is +2.55
just apply Delta energy=energy in 4th orbit -energy in 2nd orbit
[tex]energy = - 13.6 \times z ^{2} \div n {}^{2} [/tex]
so here you can find answer
What is the mass (in grams) of 10.00 L of propane vapor (C3H8) at STP?
The mass (in grams) of 10.00 L of propane vapor ([tex]C_3H_8[/tex]) at STP is 19.668 g
One mole of gas requires 22.4 L of space at STP.
Moles of[tex]C_3H_8[/tex] = 10.0L/22.4L = 0.446 mol
Mass of [tex]C_3H_8[/tex] = 0.446×44.1 = 19.668 g
STP, or standard temperature pressure, refers to the nominal atmospheric conditions at sea level. The temperatures and pressures are 0 degrees Celsius and 1 atmosphere, respectively. In addition to other professionals, the STP value is crucial for physicists, chemists, engineers, pilots, and navigators.STP in chemistry is the abbreviation for Standard Temperature and Pressure. STP is most frequently employed for doing calculations for gases.To learn more about STP visit:
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What is true of a molecule?
A. Each molecule of a compound has different properties.
B. Each atom of a molecule is the same
C. All molecules of a compund have the same properties.
D. All molecules of a compound have one type of atom
The true statement about a molecule is that all molecules of a compound have the same properties and is therefore denoted as option C.
What is an Atom?
This is referred to as the smallest unit of matter without the release of electrically charged particles which include proton, electron etc.
Atoms combine together to form molecules and they are involved in the formation of chemical compounds such as NaCl etc. It consists of identical molecules which means that all of them have the same properties which is therefore the reason why option C was chosen as the most appropriate choice.
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Answer:
All molecules of a compound have the same properties.
Explanation:
Compounds that have a high degree of ionization in solution are known as what
When a neutral molecule is exposed to a solution, it splits into charged ions, which is known as ionization. The degree of ionization of acids and bases is determined by the degree of dissociation of compounds into their constituent ions. Strong acids and bases have a higher degree of ionization than weak acids and bases.
What is the degree of ionization?The Ionisation degree denotes the strength of an acid or a base. A strong acid is said to completely ionize in water, whereas a weak acid is said to ionize only partially. Because there are different degrees of acid ionization, there are also different levels of weakness, which can be expressed quantitatively.
Why do acids and bases have such high ionization levels?Ionization of these bases results in the formation of hydroxyl ions (OH). As a result, the degree of ionization of acids and bases is determined by the degree of dissociation of compounds into their constituent ions. Strong acids and bases have a high degree of ionization when compared to weak acids and bases.
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What data would be most helpful to support the claim that the population of a certain plant is dependent on the rainfall in its habitat?
OPTIONS
The average amount of water absorbed by the roots and given off by the leaves of these plants
The amount of water retained in the soil in the area where the plants live
Rainfall amounts and number of these plants in a certain habitat over several years
The heights and number of leaves produced by these plants under different moisture conditions
Explanation:
make up some of your own signs which can warns people about the dangers of river an ocean a large snake hiding in the bush
Add curved arrows(s) to show the resonance using the following pattern: a lone pair (on nitrogen) next to a pi bond. Modify the second structure given to draw the new resonance structure. Include lone pairs and charges in your structure. Using the + and - tools to add charges to an atom, and use the single bond tool to add/remove double bonds.
Answer:
ddddxddddddddddddddddddddddddd
What orbitals would be present in principal energy level two?
There are 4 orbitals in the principal energy level two. These are: one 2s orbitals and three 2p orbitals (2px, 2py and 2pz).
Principal energy level indicates the energy shell outside the nucleus in which an electron is located. There are 4 principal energy levels. These are: s (sharp), p (principal), d (diffuse) and f (fundamental). The principal energy level can be denoted by the letter n.
Orbital is a function. It describes the behavior and the location of an electron in an atom. The orbitals for any energy level are calculated using the formula n² (where n is the number of orbitals). Hence for energy level 2, the number if orbitals = 2² = 4. Now s has only one orbitals and p has three, therefore a total of four orbitals.
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The following precipitation reaction can be used to determine the amount of copper ions dissolved in solution. A chemist added 5.00 × 10−2 L of a solution containing 0.173 mol L−1 Na3PO4(aq) to a 5.00 × 10−2 L sample containing CuCl2(aq). This resulted in a precipitate. The chemist filtered, dried, and weighed the precipitate. If 1.21 g of Cu3(PO4)2(s) were obtained, and assuming no copper ions remained in solution, calculate the following: the concentration of Cu2+(aq) ions in the sample solution. the concentrations of Na+(aq), Cl−(aq), and PO43−(aq) in the reaction solution (supernatant) after the precipitate was removed.
From the stoichiometry of the reaction, 0.094 g of [tex]Cu^{2+}[/tex] is contained in the reaction.
What is the amount of the copper ion?The reaction equation is given by; [tex]2Na_{3}PO_{4} (aq) + 3CuCl_{2} (aq) ----- > 6NaCl (aq) + Cu_{3}(PO_{4}) _{2} (s)[/tex]. We must note that the balanced reaction equation is the entry way into obtaining the correct stoichiometry of the reaction in order to solve the problem.
Number of moles of [tex]Na_{3}PO_{4}[/tex] = 5.00 × 10−2 L * 0.173 mol L−1 = 0.00865 moles
If 2 moles of [tex]Na_{3}PO_{4}[/tex] produces 1 mole of[tex]Cu_{3}(PO_{4}) _{2}[/tex]
0.00865 moles of [tex]Na_{3}PO_{4}[/tex] produces 0.00865 moles * 1 mole/2 moles
= 0.0043 moles of [tex]Cu3(PO4)2[/tex]
Number of moles of [tex]Cu^{2+}[/tex] = 0.0043 moles/3 = 0.00144 moles
Mass of [tex]Cu^{2+}[/tex] = 0.00144 moles * 63.5 g/mol = 0.094 g
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2013 Cengage Learning
3. A student measured the dimensions of a table and recorded the length as 103.50 cm and the width
as 73.75 cm. According to the student's calculator, the area is 7633.125 cm². What value should the
student report as the area? Explain your answer.
Dimensions of a table and recorded the length as 103.50 cm and the width
as 73.75 cm
AREA = L × B
AREA = 103.50 × 73.75
area = 7,633.125 cm²
but the student should report 7633 cm² because the width measurement (73.75 cm) has 4 significant figures while the length measurement (103.50 cm) has 5 significant figures and when multiplying the answer should have the same number of significant figures as the number with the least number of sig figs.
Significant Figures can help determine the accuracy of a number by the number of significant figures it contains.so the correct answer should be 7633 cm².
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This is science not Chemistry
In the following illustration what do you call location (a) and location (b)?
Answer:
you can do it shshbssjjsjsnsjssbsjsb
a student accidentally drops the watch glass atop the evaporating dish containing the dried salt and it breaks , how could this affect the calculation
When this occurs the result that is obtained from the calculation would no longer be trustworthy because it is above the actual value.
How would this affect the calculation?We know that evaporation involves the heating a sample of a substance until all the water in it leaves and it remains only the crystalline solid. The whole water would evaporate and the mass of the sample would decrease.
When the student accidentally drops the watch glass atop the evaporating dish containing the dried salt and it breaks, the particles of the glass would mix with the dried salt and increase the mass of the dried salt.
When this occurs the result that is obtained from the calculation would no longer be trustworthy because it is above the actual value.
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What is the scientific method?
A. A set of steps that help scientists gather knowledge
OB. A set of rules that all scientists need to follow
OC. A way for scientists to prove that their theories are correct
D. A way for scientists to come up with questions about the world
how many elements are present in the compound
go play mine craft use code wild ............................
A sample of natural gas was found to contain 0.070% (percent by volume) of hydrogen sulfide, H2S. Calculate the mass of H2S present in 2.00 L of natural gas at 298 K.
The mass of H₂s present in 2.00 L of natural gas at 298 K is 0.002156 g.
What is the volume of hydrogen sulfide in 2.00 L of natural gas at 298 K?The volume hydrogen sulfide in 2.00 L of natural gas at 298 K is calculated as follows:
Volume of hydrogen sulfide = percent composition * volume of natural gas
Volume of hydrogen sulfide = 0.07/100 * 2.00 L
Volume of hydrogen sulfide = 0.014 L
The given temperature is standard temperature.
Density of H₂s at STP is equal to 1.54 g/L.
mass of H₂s = density * volume
mass of H₂s = 0.0014 * 1.54
mass of H₂s = 0.002156 g
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calculate the molar mass of Na2S2O3.5H2O
Answer:
248
Explanation:
Na2 = 23 x 2
S2 = 32 x 2
O3 = 16 x 3
5h20 = 5 x (2+16)
add these and u get 248
Which branch of chemistry is concerned with the chemical processes that occur within living organisms? A. Physical B. Inorganic C. Biochemistry D. Organic
Answer: C. Biochemistry
Explanation:
Merriam-Webster Dictionary defines Biochemistry as:
"chemistry that deals with the chemical compounds and processes occurring in organisms"
“Definition of BIOCHEMISTRY.” Merriam-Webster.com, 2018, www.merriam-webster.com/dictionary/biochemistry.
A spherical iron ball has a
diameter of 11.6 cm and has a
mass of 3.60 kilograms. This
particular ball has a hole inside
of it. Given that the density of
iron metal is 7.86 g/cm*, what is
the volume in cm" of the hole
inside the ball? (The volume of
a sphere is (4/3) Tr3)
The volume of the hole inside the ball is 359.27 cubic inches if the spherical iron ball has a diameter of 11.6 cm and a mass of 3.60 kilograms.
What is a sphere?It is defined as three-dimensional geometry when half-circle two-dimensional geometry is revolved around the diameter of the sphere that will form.
[tex]\rm V = \dfrac{4}{3} \pi r^3[/tex]
The volume of the sphere V = (4/3)πr³
The diameter d = 11.6 cm
The radius r = 11.6/2 = 5.8 cm
The volume of the sphere V = (4/3)π(5.8)³
V = 817.28 cubic cm
As we know,
The density d = mass/volume
7.86 = 3600/volume
Volume = 458.01 cubic cm
The volume of the hole inside the ball = 817.28 - 458.01
= 359.27 cubic inches
Thus, the volume of the hole inside the ball is 359.27 cubic inches if the spherical iron ball has a diameter of 11.6 cm and a mass of 3.60 kilograms.
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Given that the density of gold is 19.3 g cm-3, calculate the volume, V, of a gold nugget with a mass of 4.74 g.
People are looking to see why some people get bit more by mosquitos than others. Some people have
wondered if the scent of their perfume can have an effect on how often they are bit.
a)
independent variable:
b) dependent variable:
c) three possible constants in the
scenano
Answer:
see bellow..
Explanation:
a) independent variable ; the specific scents being used (like vanilla, or blueberry etc.)
b) how much of it is sprayed
c) the weather, brand of perfume, record time
The initial water level in a 10-mL graduated cylinder is 4.9 mL . After a sapphire gemstone is added into the cylinder, the water level is 6.2 mL .
What is the volume of the sapphire?
The volume of the sapphire, given the data from the question is 1.3 mL
Data obtained from the questionFrom the question given above the following data were obtained:
Volume of water = 4.9 mLVolume of water + sapphire = 6.2 mLVolume of sapphire =?How to determine the volume of the sapphireThe volume of the sapphire can be obtained by using the displacement method as follow:
Volume of sapphire = (Volume of water + sapphire) - (Volume of water)
Volume of sapphire = 6.2 - 4.9
Volume of sapphire = 1.3 mL
Thus, the volume of sapphire is 1.3 mL
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Is AgNo3 an allotrope or a polymorph?
AgNo3 is a polymorph as it can be many forms.
PolymorphA substance's capacity to crystallize into various crystalline forms is known as polymorphism. These crystal modifications are also referred to as polymorphs. Polymorphs behave differently in the solid state even though they are the same in the liquid or gaseous states.
Allotrope :The ability of some chemical elements to exist in two or more different forms, in the same physical state, is known as allotropy or allotropism. These forms are referred to as the element's allotropes. Allotropes are different structural modifications of an element in which the bonding between the atoms is altered.
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Which compound would make a saturated solution if 200 grams were dissolved in 100 grams of water at 90 degrees Celsius?
KNO3
Sugar
NaBr
KCl
Sugar compound would make a saturated solution if 200 grams were dissolved in 100 grams of water at 90 degrees Celsius.
What is saturated solution?A saturated solution is a type of solution in which the maximum amount of solvent has been dissolved. In a saturated solution, no more solute can be dissolved at a given temperature because of no capacity. We can make an saturated solution by adding more solute until no more solute can be dissolved in the solvent. We can make a saturated solution if we added more amount of sugar in less amount of water.
So we can conclude that Sugar compound would make a saturated solution if 200 grams were dissolved in 100 grams of water at 90 degrees Celsius.
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Which of the following statements describe what a normative system is?
Explanation:
though the statements were not given let just give you a brief review of normative system.
A normative statement explains what should be base of the subject according to the belief through valued judgement that describes the fairness of the subject on public policy. Therefore, the unemployment rate should be lowered is a valued judgement based on the belief that it will bring economic welfare.
Normative systems, i.e., sets of norms, have two main. tions: a) to evaluate human actions, and b) to guide peop. The guidance and the evaluation based on a normativ. be good or bad.In social psychology three different normative behaviours have been identified: obedience, conformity and compliance.In the context of a normative system like law (or religion or morality), every statement of what one ought to do (or ought not to do) requires justification from a more general or basic statement. Such statements lead upward through the normative hierarchy until one reaches a foundational normative premise.
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What is the weight in grams of 0.45 moles of gold(Au)?
Answer:
88.63494750000001
Explanation:
Convert moles Gold to gram.
Draw a triglyceride (glycerol with three amino acids, each joined by a dehydration synthesis reaction. Be sure to show where each fatty acid was added to the glycerol and indicate with an arrow where each of the three water molecules were removed during the dehydration synthesis reaction.
Triglycerides are the storage form of fats found in adipocytes.
What are triglycerides?Triglycerides are a class of lipids which are formed from three molecules of fatty acids which may be the same or different molecules and a glycerol molecule.
The fatty acids are linked by ester linkage to the glycerol molecules.
Triglycerides are the storage form of fats found in adipocytes.
Triglycerides are important energy storage molecules,
In conclusion, triglycerides are composed of three molecules of fatty acids and a glycerol molecule.
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calculate denisty in grans per milliliter 25.0 mL having a mass of 19.7 g
calculate the energy of an EM wave having wavelength 4.2nm
The energy of an electromagnetic wave that has a wavelength of 4.2nm is 4.731 × 10-¹⁷ J.
How to calculate energy of a wave?The energy of a wave can be calculated using the following formula:
E = hf
Where;
E = energyh = Planck's constant (6.626 × 10-³⁴J/s)f = frequency of the waveHowever, the frequency must be calculated first as follows:
λ = v / f
Where;
λ = wavelengthv = speed of light (3 × 10⁸m/s)4.2 × 10-⁹ = 3 × 10⁸/f
f = 7.14 × 10¹⁶Hz
Energy = 6.626 × 10-³⁴ × 7.14 × 10¹⁶
Energy of the wave = 4.731 × 10-¹⁷ J
Therefore, the energy of an electromagnetic wave that has a wavelength of 4.2nm is 4.731 × 10-¹⁷ J.
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