Answer:
the speed will increase and so will the acceleration. then after a bit the acceleration will decrease due to air resistance until there is no acceleration. Then the speed will continue to decrease when there is no acceleration anymore.
I NEED ASAP PLEASE!!
Answer: freezing and evaporation for sure
Explanation:
The mass of the product of a reaction will always equal what
what special quality does the asthenosphere have that allows the crust to float on it and be moved around ?
Answer:
The tectonic plates do not slowly drift over time because they are floating on a layer of liquid rock. They drift because they are sitting on a layer of solid rock (the upper mantle or "asthenosphere") that is weak and ductile enough that it can flow very slowly under heat convection, somewhat like a liquid.
Explanation:
What is the connection between Oobleck and the mantle?
Answer:
Oobleck is a mixture of cornstarch & water, a substance that behaves like the Mantle.
Explanation:
More people in Australia have skin that is easily damaged by sunlight?
What is the difference between a chemical formula and a chemical equation?
a chemical formula is the combination of atomic symbol that designer a particle chemical compound aur a substance with two or more different element. A chemical equation show one or more chemical compound( reactance) being convert into different chemicals space is called product
Explanation:
in your opinion if the answer is correct mark me as brain list
What is the IUPAC name for CH3-CH2-CH(OH)CH3?
Answer:
2 butanol or sec butanol
Why do you think experimenters work in labs instead of the natural world?
Answer:
I think experiments work in a lab better than the natural world because you got all the equipment that you need in the lab
Analyze: What do the elements in each column of the periodic table have in common?
Answer:
Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.
Explanation:
Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.
Which of the following cannot be determined by an H-R Diagram?
Brightness (Luminosity)
Temperature
Color
Location
Z = 8, number of neutrons = 9 atomic symbol
What do scientists hope to learn by collecting information about friction along faults?
Answer:
By measuring friction along faults, scientists can tell where rocks are moving along easily and where they are locked. They hope to use this information to predict where major earthquakes might occur.
Explanation:
Answer:
By measuring friction along faults, scientists can tell where rocks are moving along easily and where they are locked. They hope to use this information to predict where major earthquakes might occur.
Explanation:
tOaTLLY DiDnT cOpY iT
9. An atom's electron configuration is shown here. How many electrons are in
that atom?
1s22s22p63s4
8
14
4
22
Answer:
14 electrons are in that atom
Classify the following materials rock or mineral
Answer:
Common minerals include quartz, feldspar, mica, amphibole, olivine, and calcite. A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral matter. Common rocks include granite, basalt, limestone, and sandstone.
What what is the density. Correct units please.
What is the identity of the metal?
Mass of metal: 12.3 g
Initial volume: 20.5 mL
Final volume: 21.9 mL
The atmosphere and hydrosphere interact in which type of severe weather?
Answer:
The atmosphere and hydrosphere interact in water-related weather, this includes snowstorms, hurricanes, rainfall, and monsoons.
The question is incomplete, the complete question is;
The atmosphere and hydrosphere interact in which type of severe weather?
A. Hurricanes
B. Drought
C. Sinkholes
D. Wildfires
The atmosphere and hydrosphere interact in the severe weather called hurricanes.
A hurricane is defined as a cyclonic storm which forms over warm tropical waters and moves at about 74 miles per hour.
When hurricanes mostly move over dry water and causes large scale destruction of property. As hurricanes move, they create tornadoes.
Hurricanes are formed when moist air rises over water. A convection current is set up as the moist air is replaced by cooler air.
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what is the percentage of hydrogen in 300 g of sucrose?
Answer:
hi
Explanation:
Answer: 6.50%
Explanation:
It is this answer simply because they're the same substance.
Julie takes a cold glass of clear, colorless liquid out of the refrigerator and puts it on the table. As the liquid warms up to room temperature, Julie sees bubbles of gas form in the liquid and rise to the surface.
Which conclusion is best supported by Julie’s observations?
The liquid is a pure substance because it is colorless.
The liquid is a mixture because its temperature rises.
The liquid is a pure substance because it remains liquid when cold.
The liquid is a mixture because it has a gas dissolved in a liquid.
Answer:
the answer is D. The liquid is a mixture because it has a gas dissolved in a liquid.
Explanation:
i got it right 2020
The liquid is considered as a mixture because this liquid has a gas dissolved which comes out from it in the form of bubbles.
Why this liquid is a mixture?This liquid is considered as a mixture because the gas which is dissolved in it with a high pressure is now removed due to removal of pressure. We know that in mixture elements are mix together not bonded to each other so we can conclude that the liquid is a mixture because it has a gas dissolved in a liquid.
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Red lights on a traffic light have a frequency of 4.3 X 1015 Hz. What is the red light’s wavelength in meters?
The wavelength of light is found to be 6.98 × 10^-8 m.
We know that light is an electromagnetic wave, the speed of an electromagnetic wave is commonly referred to as the speed of light which has a numerical value of 3 × 10^8 m/s.
Now;
c = λf
c = speed of light
λ = wavelength of light
f = frequency of light
But;
λ = c/f
λ = 3 × 10^8 m/s/ 4.3 X 10^15 Hz
λ = 6.98 × 10^-8 m
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50.0 g of NaNO3 are dissolved into enough water to make 250 mL of solution. What is the molarity of this solution?
Answer:
2.35 M
Explanation:
Molarity is mol/L of solution. We have to convert the g to mol and the mL to L. G to mol uses the molar mass of the compound. The molar mass of NaNO₃ is 85.00g/mol.
[tex]50.0gNaNO3*\frac{1molNaNO3}{85.00gNaNO3} = 0.588molNaNO3[/tex]
Then you have to convert mL to L.
[tex]250mL*\frac{1L}{1000mL} = 0.250L[/tex]
Now divide the mol by the L.
[tex]\frac{0.588mol NaNO3}{0.250L} = 2.352 M[/tex]
Round to the smallest number of significant figures = 2.35M
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A company purchased a large forest and cut the trees for lumber. Sunlight which had not reached the forest floor before was now very bright on the bare ground. Holly ferns began to grow rapidly because of increased access to light and moisture.
Which population of organisms would be in direct competition with the Holly ferns for the same resources?
A) Squirrels
B) Hawks
C) Spotted owls
D) Wildflowers
Answer:
It's D) Wildflowers
Hope it helps!!!
Quadrilateral ABCD is shown on the coordinate grid below.
Which rule best describes the transformation that was used to create quadrilateral A'B'C'D'?
A. Quadrilateral ABCD was dilated by a scale factor of –1 to create quadrilateral A'B'C'D'.
B. Quadrilateral ABCD was dilated by a scale factor of 2 to create quadrilateral A'B'C'D'.
C. Quadrilateral ABCD was dilated by a scale factor of 0.5 to create quadrilateral A'B'C'D'.
D. Quadrilateral ABCD was dilated by a scale factor of 0.25 to create quadrilateral A'B'C'D'.
Answer:
The answer is B
Explanation:
Was Democritus' atomic theory correct?
Answer:
Yes, Democritus's atomic theory was correct.
Explanation:
He thought the first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties. The other scientists added onto his theory to show that he was correct, except Aristotle, he thought the world was made of the 4 elements: earth, wind, fire, water.
Explain why a melted ionic compound is a good conductor of electric current by a solid ionic compound is a poor conductor of electric current?
Answer:
Melted ionic compounds have freely moving ions while solid ionic compounds do not.
Explanation:
A melted ionic compound has freely moving ions where electrons can be transfered because the elements of the ionic compounds have broken there bonds and have dissociated into their ions. Compared to a solid ionic compound where it's still in the crystal lattice and the elements will stick in place and the ions will not move because it's in a solid state and they haven't dissocated into their ions.
define the law conservation of mass
Answer:
Explanation:
The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so the quantity can neither be added nor be removed.
hope it helps
Anything that has mass and takes up space is called *
1 point
matter
energy
heterogeneous
mixture
What holds atoms together in a molecule? *
1 point
gravity
physical bonds
chemical bonds
density
Answer:
the answer is Matter for the first one the second one is a chemical bond
Explanation:
:)
Answer is matter? Hope that helps,
Give evidence to support or dispute: “In nature, the chance of finding one isotope of an element is the same for all elements.”
Answer:
False, isotopes have different occurrence percentages, so the changes are different.
Explanation:
Hello,
In this case, since it is false that the isotopes of all the elements can be found with the same chance (occurrence) we can consider the following facts:
1. Carbon atom has two major occurring isotopes: C-12 (98.93%) and C-13 (1.07%).
2. Bromine atom has two major occurring isotopes: Br-79 (50.69%) and Br-81 (49.31%).
3. Calcium has four major occurring isotopes: Ca-40 (96.941%), Ca-42 (0.647%), Ca-43 (0.135%) and Ca-44 (2.086%).
Which show us that the chances of finding any isotope differ among elements.
Regards.
The statement presented in the question above is false, as the percentage of occurrence of an isotope cannot be defined and adopted for all elements, as this varies.
We can arrive at this answer because:
Isotopes are chemical elements that have the same amount of protons.However, these elements have different mass numbers and neutrons from each other.Although there is a percentage of occurrence of isotopes in nature, this percentage varies among elements.Mainly because these elements compose different substances and some may have low occurrence percentages and others high percentages.An example of this can be seen in Calcium (Ca) isotopes, where the Ca-40 isotope has an occurrence percentage equal to 96.9%, while the Ca-42 isotope has an occurrence percentage equal to 0.64%.
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1. If a metal block with a density of 5.00 g/mL was split into two equal halves, what would the
density be of each individual block? Justify your answer.
Answer:
2.5
Explanation:
Which of these is a property of an alkali metal? An alkali metal is soft. An alkali metal is soft. All of these are properties of an alkali metal. All of these are properties of an alkali metal. An alkali metal is shiny. An alkali metal is shiny. An alkali metal will react with water.
Answer:
All of these are properties of an alkali metal
Explanation:
Alkali metals are metals of group 1. These metals are known to react with water to form the corresponding alkali and liberate hydrogen gas.
They are all silvery in appearance hence they are shiny. They are so soft that they can easily be cut into pieces.
during energy transformations energy is never
Answer:
created or destroyed
Explanation: