Arrange following steps of the Scientific Method into the proper order.
11. State the Problem
2. Conclusion
1 3. Data analysis
14. Hypothesis
15. Research
1 6. Experiment/data collection
what affects the rate at which acid rain reacts with a statue
The thing that affects the rate at which acid rain reacts with a statue is the concentration of sulfur dioxide and carbon dioxide in the environment.
What is Acid rain?Acid rain may be defined as a type of precipitation on the surface of the earth that involves a significant amount of acids like nitric acid, sulphuric acid, and carbonic acid due to the heavy concentration of nitrous oxide, carbon dioxide, and sulfur dioxide in the environment.
This high concentration of acids in acid rain generally reacts with metals and corrodes them. They permanently lose the actual shine of marble, statues, buildings, etc.
The concentration of these acids typically affects the rate at which acid rain reacts with a statue. If there is a high concentration, it highly influenced the property of statues.
Therefore, the thing that affects the rate at which acid rain reacts with a statue is the concentration of sulfur dioxide and carbon dioxide in the environment.
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How many significant figures are in 15200 mL
Answer:
3
Explanation:
The zeros after 152 are not significant.
If you had an object with a density of 1.12 g/cm2, would it sink or float in a container of salt water that has a density of 1.35 g/ml?
a -sink
b-float
The object will float on the salt water.
We have an object of density 1.12 g/cm³.
We have to determine whether it will sink or float in salt water of given density.
How many milliliter are their in 1 cm³ ?In 1 cm³ there are 1 ml
According to the question -
Density of object = ρ(O) = 1.12 g/cm³.
Density of salt water = ρ(S) = 1.35 g/ml = 1.35 g/cm³.
For the object to sink its density should be greater than that of the salt water. Mathematically -
ρ(O) > ρ(S) → Object will sink.
ρ(O) < ρ(S) → Object will float.
Now, it can be seen that -
ρ(O = 1.12) < ρ(S = 1.35)
Therefore, the object will float on the salt water.
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Which statement best describes a physical property?
A physical property can be measured without changing the chemical makeup of the material
A physical property describes the product of a reaction between two substances.
A physical property describes the substance in terms of energy content.
A physical property of a substance varies from sample to sample
The drawing shows an apple falling to the ground. In which of the following three
positions does gravity act on the apple?
Position 1
Position 2
Position 3
A.
B.
C.
D.
2 only
1 and 2 only
1 and 3 only
1, 2 and 3
Answer:
its 1 and 2
Explanation:
because the 3rd one is alrdy in the ground
Please Help!!!!! Need by 11:30
Answer:
D i think
Explanation:
If you were approaching the solar system in a spaceship, you would notice that the Sun
Answer:
No
Explanation:
which of the following below is an example of a chemical change?
a) heated metal glows red
b) pennies turn green overtime
c) butane is distilled from crude oil
d) soy sauce makes white rice turn brown
answer: (c) butane is distilled from crude oil
Explanation:
this is the answer because a chemical change is when the formula or what’s inside of it changes ( not what it looks like) so when the butane is token out of the crude oil it changes the formula
Which two physical properties allow a mixture to be separated by chromatography?
Solubility and molecular polarity
Give the electronegativity for the following elements of LI
Answer:
0.98
Explanation:
What is 1 item that is a compound?
Give an example of how the 1 item is a compound :D
Water
Water is a compound because it is made from more than one kind of element (oxygen and hydrogen).
What are the important features of a model of Earth's plates?
Answer:
The main features of plate tectonics are:
Convection currents beneath the plates move the crustal plates in different directions. The source of heat driving the convection currents is radioactivity deep in the Earths mantle.
The important features of earth's plates are seismicity,volcanicity and tectonic activity along plate margins.
What are plate tectonics?It is a generally accepted scientific theory which takes into consideration earth's crust to be made up of tectonic plates. These plates move slowly and are moving since 3.4 billion years ago.
The model is developed on the concept of continental drift .Earth's lithosphere is split up in to seven-eight major plates and many minor plates.The position where plates meet their relative motion determines the plate boundary.
Tectonic plates are made up of lithosphere of ocean and thicker continental lithosphere.These plates are able to move because lithosphere has high mechanical strength.Lateral density variations occurring in mantle cause convection.
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Where does the carbon that you breath out as carbon dioxide come from? How does the Carbon enter your body?
what property of does honey possess that makes it resist from flowing
in form of solid form honey possess
Answer:
Honey
Explanation:
Honey is an ancient remedy for the treatment of infected wounds, which has ... The antimicrobial properties of honey have been known to humans for ...
Abstract
Introduction
Composition
Honey production and ...
Physical properties of honey
Honey as food
Microbes in honey
Jaden listed the similarities of using coal, natural gas, and petroleum to generate electricity. Coal, natural gas, and petroleum: – use turbines – require heat – convert electrical energy to kinetic energy – produce pollution in the form of smoke Which best describes Jaden’s mistake? Only coal-fired power plants use turbines. Power plants do not require heat. Kinetic energy is converted to electrical energy. Coal does not produce pollution.
Answer:
The answer is C. Kinetic Energy is converted to electrical energy
Explanation:
Just took the test
Electric energy is converted to kinetic energy is the mistake that Jaden made in this scenario.
What is Energy?This is defined as the capacity and ability to do work and examples include kinetic, electrical etc.
The kinetic energy through the movement of water by the wind is what powers the turbine to become an electric energy and not electrical energy being converted to kinetic energy.
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The Sun releases a lot of energy in many different forms. The Earth receives a small portion of this energy but it is enough to help keep the atmospheric temperature from changing too much. Which of the following allows the Sun’s energy to reach the Earth? (SC.7.P.10.1)A. conduction B. convection C. radiation. D. reflection
C would be my best guess because of ultraviolet radiation
Hope this helps! Good luck :)
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
Who determined the mass of the electron?
Niels Bohr
Linus Pauling
Robert Millikan
J.J. Thomson
Answer:
J.J. Thomson
Explanation:
According to my book and wiki, Historically, the mass of the electron was determined directly from combining two measurements. The mass-to-charge ratio of the electron was first estimated by Arthur Schuster in 1890 by measuring the deflection of "cathode rays" due to a known magnetic field in a cathode ray tube. It was seven years later that J. J.
Please correct me if I'm wrong.
Answer:
Robert Millikan
Explanation:
Robert was the true answer
give me the if, then statement to the picture below.
I NEED HELP ASAPPPP
Answer:
if we take away the web, we can slide down
Explanation:
What does the number below each element's symbol represent?
A. The average number of isotopes
B. The average atomic mass
C. The average atomic number
D. The average mass of the ions
Answer:
B. The average atomic mass.
APEX
Answer:
The average atomic mass.
Explanation:
The answer is given but I'd like to understand how one would get to the answer.
Answer:
Find the limiting reactant.
Explanation:
Using the ratio in the chemical formula, find the limiting reactant.
[tex]0.164mol Mn*\frac{2molMnO3}{2molMn} = 0.164molMnO3[/tex]
[tex]0.232molO2*\frac{2molMnO3}{3molO2} = 1.55molMnO3[/tex]
The second equation results in less mol of MnO₃, therefore it is the limiting reactant and changing the moles of O₂ to moles of MnO₃ which will give the theoretical yield which is 1.55 mol MnO₃.
What force is responsible for the difference between the weight of each object in the air and its apparent weight in water?
Answer:
Buoyant Force
Explanation:
"Buoyancy or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object." - Google
Write a paragraph to explain the answer to the following prompt:
Imagine you are a scientist just teleported to a place that has no gravity. Write a journal entry to describe your experience. Consider how the lack of gravity might affect your weight. Do you still fit the definition of matter? Make sure to document your emotions!
Answer:
hinndndnnddnndndndnd do djfj
Explanation:
hdhdjdbdndndndjjddjdndjdjdndnndndndnd be rnnrbr
how does one burn coffee
Answer:
coffee can be burnt
Explanation:
coffee can be burned when brewing. When an empty pot sits on the heating element in a restaurant coffee machine it can get very hot. When the first stream of a new brew cycle hits the bottom of the pot, boils off very quickly, producing a horrible smell and taste that infuses the entire pot.
Which food molecules are inside the tube
Answer:
I'm sorry what this question needs more context.
Explanation:
Answer:what are the foods?
Explanation:
HELP ASAP PLEASE!!!! i really need help! :( Please help me this is due at 8:45 pleaseeeee!!! show all work!!
The photoelectric effect is an electron coming out of a metal because of electromagnetic radiation
One type of electromagnetic radiation is light
Frequency (f): the number of waves / second
Can be formulated :
[tex]\tt v=\lambda\times f[/tex]
v=fast wave propagation ⇒ speed of light =3.10⁸ m/s
λ= Wavelength
The energy can be formulated as
E = h x f
Where
E = energy of light, J
h = Planck's constant (6,626.10⁻³⁴ Js)
f = Frequency of electromagnetic waves, Hz
1. λ = 4.82 x 10⁻¹⁰ m
the frequency =:
[tex]\tt f=\dfrac{v}{\lambda}=\dfrac{3.10^8}{4.82\times 10^{-10}}=6.22\times 10^{17}[/tex]
2. The energy
[tex]\tt E=6,626.10^{-34}\times 6.22\times 10^{17}=4.12\times 10^{-16}~J[/tex]
3. λ = 4.32 x 10⁻⁷ m
[tex]\tt f=\dfrac{3.10^8}{4.32\times 10^{-7}}=6.94\times 10^{14}\\\\E=6.626\times 10^{-34}\times 6.94\times 10^{14}=4.598\times 10^{-19}~J[/tex]
True or False: A larger numerical value for electron affinity means it is more difficult for an electron to be added to an atom.
Answer:
i feel like it's false. i'm not quite sure right now, but i have a feeling that it's false. i hope i'm right.
Explanation:
Is nickel ferromagnetic How do you know?
Answer:
please mark brainliest!
Explanation:
The element Nickel (Ni) is one of the few ferromagnetic metals. Ferromagnetic means they are attracted to magnets and can be magnetized themselves. Most metals aren't magnetic with the exception of iron, nickel, cobalt, gadolinium, neodymium and samarium.
Answer: ummmmmm
Explanation:
What is the concentration that of chloride ions in a .193 m solution of potassium chloride
Answer:
solution of K3PO4?
1.31 m
2.
Concentration of Chloride Ions in a 0.193m solution of Potassium Chloride is _______.
0.193 m
3.
Concentration of Iodide ions in a 0.193 solution of Barium iodide is _________.
0.386 m
4.
In a Titration of 35.00 mL of 0.737 m H2So4, _______ mL of a 0.827 m KOH solution is required for neautralization.
62.4
5.
Consider the following reactions
AgNo3 ------>
Co(No3) ---->
AgNo3 ---->
Which is the correct order of increasing activity for these metals?
Ag < Co < Zn
6.
There are ______ Mol of bromide ions in 0.500 L of a 0.300M solution of AlBr3
0.450 m
7.
How many grams of Sodium Chloride are there in 550 mL of a 1.90 m aq solution of sodium CL?
6.11 g
8.
The total concentration of ions in a 0.250 M solution of HCL is _______?
0.500 m
9.
How many moles of Co 2+ are present in 0.200 L of a 0.400 M solution of Co I2
0.0800
10.
A Neautralization reaction between an acid and a metal hydroxide produces
Water and a salt
11.
7 Strong Acids
Claire HCl
Brian HBr
invented HI
nutrious HNo3
(3)candy HClO3
(2,4)sold H2So4
(4)profit HClO4
12.
8 strong bases
Lily LiOH Lithium Hydroxide
never NaOH Sodium Hydroxide
knew KOH PossasiumHydroxide
Robert RbOH
could ClOH
bake Ba(OH)2
strawberry Sr(OH)2
cake Ca(OH)2
13.
What are the spectators ions in the reaction between KOH(aq) and HNO(aq)
HF + OH ---> H2O + F-
14.
Combining Aq solution of BaI2 and Na2So4 affords a precipitate of BaSO4
Which Ions is/are spectator ions in the reaction?
Na + and I -
15.
The Spectator ions in the react between aq Hydrochloric acid and Aq Ammonia
Are ________
B. Cl - only
16.
Spectator ions of aq hydrofluoric acid and aq barium hydroxide are _________
D. Ba 2+ only
17.
Spectator ions in reactions
Aq perchloric acid and Aq barium hydroxide are >>>>>>>
ClO 4- and Ba 2+
To solve this we must be knowing each and every concept related to concentration and its calculation. Therefore, the concentration that of chloride ions in a 0.193 m solution of potassium chloride is 0.193 m.
What is concentration?There are two components in an aqueous solution: the solute and the solvent. You must be familiar with these two fundamental terminology for solution concentration. The quantity of solute present in the solution must always be recorded.
A solution's concentration can be expressed in a variety of ways. Chemists frequently work with moles when doing their tasks. In place of the number of moles, pharmacists will utilize percentage concentrations.
KCl[tex]\rightarrow[/tex] K⁺ + Cl⁻
concentration of KCl= concentration of K⁺= concentration of Cl⁻ = 0.193 m
Therefore, the concentration that of chloride ions in a 0.193 m solution of potassium chloride is 0.193 m.
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Describe air using the terms: mixture, atoms, and molecules.
Answer: Here you go.
Explanation:
The atoms in molecules are joined by covalent bonds. Air is a mixture that contains the elements nitrogen, oxygen and argon, and also the compound carbon .
Hope this helps!