Answer:
An existing theory is modified so that it can explain both the old and new observations.
Explanation:
The statement which best describes how an existing theory is often affected by the development of new technology is that an existing theory is modified so that it can explain both the old and new observations.
What is a theory?
Theory is defined as a thoughtful explanation which is provided for observations which is constructed using scientific methods.The theory brings together many facts and hypothesis.
It is called as theory as it provides some set of assumptions initially which provide description to the field's approach to the subject.These are elementary theorems of a particular theory.It is a rational type of thinking about a set of observations.
They may be scientific,or non scientific or have no discipline at all.There are three types of theory:1) scientific, 2)philosophical and 3) moral.It provides explanation regarding the underlying mechanisms .
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Which family does this element belong to? It is a silvery-white, soft metal
that tarnishes rapidly in air and reacts with water, is a relatively soft metal
Alkali Metals
Alkaline Earth Metals
Halogens
Noble gases
Answer:
Alkali metals
hope it helps
Which of the following describes an irregular galaxy?
A.) A round football shaped disk
B.) A disk with spiraling arms around it
C.) An oval disk
D.) A random group of stars and no shape
Answer:
D
Explanation:
They don't have define shape nor structure...so a random group of stars and no shape can form a irregular galaxy
Escribe la fórmula de los siguientes compuestos: Triyoduro de fosoro Carburo de silicio Tetracloruro de azufre Pentayoduro de nitrógeno Heptafluoruro de cloro Seleniuro de teluro (VI) Tribromouro de antimonio Nitruro de fósforo (III) Sulfuro arsénico
Answer:
hola, tuve que usar el traductor de google en esto. Ni siquiera sé si entenderás esto, pero vale la pena intentarlo. y la cuestión es que no tengo la respuesta a esto, pero tenía ganas de responder en español :) por favor, responda en español para que pueda responder con una respuesta en español porque ¡esto es divertido! Esta es la tercera respuesta en español que he hecho esta noche y no tengo la intención de detenerme ahora. Sin embargo, me estoy quedando sin cosas que decir. jaja
Explanation:
The thick soil accumulation of fine-grained particles is called: O Sediment Loess O Gravel O Silt
The thick soil accumulation of fine-grained particles is called as silt
Which picture shows an example of kinetic energy?
Answer:
the cheta
Explanation:
kinetic means movement
Which property of metals allows aluminum to be flattened into thin sheets of aluminum foil?
O shininess
O malleability
O brittleness
O hardness
Answer:
malleability
Explanation:
Answer:
The answer is Malleabillity
Explanation:
I took the test and got a 100% on Edge
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How do you develop a good hypothesis?
Answer:
In order to develop a healthy, working hypothesis it's best to work within the lines of: If _______, Then ______, as an act of if, being the input (independent) variable and then being the output (dependent).
what did ruthorford discover that thomson did not understand
Answer: Atoms aren't entirely empty space
Explanation:
Rutherford did his scatter experiment to disprove Thomson's Plum Pudding Model. Rutherford shot helium nuclei at a sheet of gold and expected the particles to all go straight through to a sensor. The reason he expected this was because Thomson said that atoms are mostly made of empty space. Not all the particles went through the gold sheet, a lot of them actually reflected back to him. This meant that atoms aren't entirely empty space and something had to deflect the helium nuclei
Chloroform has a density of 1.5 g/ml. What the mass of 10.0 ml of Chloroform?
Answer:
The answer is 15 g
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volumeFrom the question
density of Chloroform = 1.5 g/ml
volume = 10 mL
We have
mass = 1.5 × 10
We have the final answer as
15 gHope this helps you
n a chemical reaction the ______of reactants and products are always equal.
Answer:
mass
Explanation:
As given by the law of conservation of mass. Hopes this helps!
TRUE or FALSE: Any measurement that has been cubed is volume.
Answer:
True
Explanation:
Volume is measured in "cubic" units. The volume of a figure is the number of cubes required to fill it completely, like blocks in a box. Volume of a cube = side times side times side. Since each side of a square is the same, it can simply be the length of one side cubed.
find the density of a brick that has a mass of 57 g and a volume of 12 ml
Answer:
4.75 or 4.8
Explanation:
density = mass / volume
57 / 12 = 4.75
from here you can leave it as is or round up.
hope this helps!!
If you are given 40 grams of a dye that has a molar mass of 200 g/mole and then place it in 2
liters of water, what is the molarity of the resulting solution?
A2M
B 0.1 M
C 1M
D2M
Answer:
B
Explanation:
to find how many moles we have you need to use the molarity equation which for this is
40g * (1mole/200g) = .2 moles
Given we know that we have .2 moles
then all you have to do is divide amount of moles by amount of liters to find the molarity
for this problem it is
.2mol/2L which is .1 M
How many moles are in 7.9 grams of P 2 O 5?
Answer: 0.0556555468903552 moles, you can estimate that to its nearest hundreth, or thousandth.
Explanation:
im just naturally a genius
Does beryllium (Be) or Sodium (Na) have the same electron arrangement as Magnesium (Mg)? Why?
Answer:
Na has the most similar configuration.
Explanation:
Na electron configuration: 1s²2s²2p⁶3s¹ or [Ne] 3s₁
Mg electron configuration: 1s²2s²2p⁶3s² or [Ne] 3s²
Be electron configuration: 1s²2s² or [He] 2s²
This is because Na and Mg are right next to each other in the same period (horizontal).
Answer:
Na has the most similar configuration. Na electron configuration: 1s²2s²2p⁶3s¹ or [Ne] 3s₁. Mg electron configuration: 1s²2s²2p⁶3s² or [Ne] 3s². Be electron configuration: 1s²2s² or [He] 2s². Na and Mg are right next to each other in the same period
a about worker measure the mass of some sucrose as 0.947mg. covert that quality to grams and to kilograms
I kinda need this question answered fast please and thank you :)
What is a mutual attraction between the nuclei and electrons in two different atoms called?
A.a cation
B.an anion
C.a compound
D.a chemical bond
An ordered list of chemical substances is shown.
Chemical Substances
1 CuO
2 O2
3 CO2
4 NO2
5 Fe
6 H2O
Which substances in the list can be some of the reactants and products in the same combustion reaction? (4 points)
A. 1, 2, and 3
B. 2, 3, and 6
C. 1, 4, and 5
D. 1, 2, and 5
answer : the correct option is, (B) 2, 3 and 6.
Answer:
b
Explanation:
i took the test
An organism contains 28 chromosomes and undergoes asexual reproduction. How many chromosomes will each of the resulting offspring contain?
Which statement describes an energy measurement?
A. An object travels 14 m.
O B. A car has a mass of 1,250 kg.
C. A rocket travels at 11 m/s.
D. Burning natural gas releases
21,000 kJ.
Answer:
D)a burning natural gas releases 21,000 kj
the horse is probably hungry observation or inference science
Answer:
observation
Explanation:
hope it is correct
Answer:
Inference science
Explanation:
Your inferring that the horse is hungry. The word 'probably' infers that the horse may be hungry.
How many significant figures are in 0.00030
Would the following configuration represent
ground or excited state: 15²2s22p03823p®4s'3d"
Excited
Ground
Answer:
Excited state
Explanation:
How can two objects of different masses have the same temperature but different amounts of thermal energy?
Choose your favorite super hero that gained their powers from radiation. What
type of radiation gave them their powers? Choose a wavelength that falls inside
that spectrum. Calculate energy (SHOW WORK).
Answer:
Copy and paste "Electromagnetic waves are categorized according to their frequency f or, equivalently, according to their wavelength λ = c/f. Visible light has a wavelength range from ~400 nm to ~700 nm. Violet light has a wavelength of ~400 nm, and a frequency of ~7.5*1014 Hz. Red light has a wavelength of ~700 nm, and a frequency of ~4.3*1014 Hz." into google, and the correct website pops up as the first result.
Explanation:
I tried to link the website that I use to convert wavelengths and frequencies into types of light, but it deleted my answer, so I guess we're doing it this way. As for converting the wavelength to energy, the same principles apply as before:
Frequency: ν Wavelength: λ Energy: E Speed of light: C (3.00e8) Planck's Constant: h (6.626e-34)
ν -> λ λ = C/ν
λ -> ν ν = C/λ
For either of these equations, wavelength must be converted to meters or nanometers, depending on the equation.
For ν -> λ, after doing the equation, convert the wavelength into nanometers by dividing by 1e-9.
For converting λ -> ν, convert the wavelength into meters by multiplying by 1e-9.
For energy: E = hν = hc/λ
Convert the following 2856 m(meters) to km(kilometers)Immersive Reader
a. 2,856,000 km
b. 2.956 km
c. 28.56 km
d. 0.02856 km
Answer: 2.856km
Explanation: 1000m = 1km
2856m / 1000 = 2.856km
what is the total charge of 20 electrons in zeka-Coulombs?
Answer:
[tex]3.2\times 10^{-18}\ C[/tex]
Explanation:
No of electrons, n = 20
We need to find the total charge. We can use quantization of electric charge in this case.
Net charge,
q = ne
e is charge on an electron
[tex]q=20\times 1.6\times 10^{-19}\\\\q=3.2\times 10^{-18}\ C[/tex]
So, there are [tex]3.2\times 10^{-18}\ C[/tex] of charge in 20 electrons.
Which of the following is a result of intermolecular forces
Answer:
The three major types of intermolecular interactions are dipole–dipole interactions, London dispersion forces (these two are often referred to collectively as van der Waals forces), and hydrogen bonds
The exoskeleton of a housefly is made up of
A.keratin. B.chitin. C.lignin. D. All of the above
Answer:
Chitin
Explanation:
A fly's main body is made of a thorax and an abdomen. These parts are covered by a hard exoskeleton made of a bony substance called chitin.
The exoskeleton of a housefly is made up of chitin. Thus, the correct option for this question is B.
What is Exoskeleton?The Exoskeleton may be defined as a tough and rigid external covering present in some invertebrate animals like arthropods. It supports and protects the animals with respect to their external environment.
The main body of a housefly is significantly divided into two regions, i.e. a thorax and an abdomen. The thorax region is further divided into three parts i.e. prothorax, mesothorax, and metathorax.
All these parts of a housefly are remarkably covered by a tough exoskeleton that is constructed of chitin. The housefly has a hard exoskeleton that protects it from moisture loss.
Therefore, the exoskeleton of a housefly is made up of chitin. Thus, the correct option for this question is B.
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George has several plants in his garden once in a while he adds fertilizer to the soil then leaves absorb the nutrients in the fertilizer and you look healthy if a cell is compared to a plant which organelle helps transport fertilizer from the soil to leaf?
A. lysosome
B. mitochondrion
C. vacuole
D. vesicle