Answer:
electrostatic attraction
Explanation:
Electrostatic attraction refers to the electrostatic force of long-range interaction occurring between the attractive electrostatic adsorption in aqueous solution with differently charged particles or uncharged particles.
Answer: Electrostatic attraction.
Explanation:
The moon has less gravity than we have here on Earth TRUE OR FALSE
Explanation:
obviously true the gravity of moon is 1/6th of the Earth
In a lava lamp, a waxy substance rises and falls repeatedly. What causes the waxy substance to rise? Check all that apply. The waxy substance is cold. The waxy substance is warm. The waxy substance is less dense than the surrounding liquid. The waxy substance is more dense than the surrounding liquid. Convection is occurring.
Answer:
The waxy substance is warm.
The waxy substance is less dense than the surrounding liquid.
Convection is occurring.
Explanation:
Convection involves heat transfer by the actual movement of the particles of a substance.
When the wax is heated, the waxy substance becomes warm and rises in the lamp. The warm waxy substance is less dense than the surrounding liquid, this process of rising and falling is as a result of convection occurring in the lava lamp.
Answer:
The person above (or below) me is correct, the answer is:
B.) The waxy substance is warm.
C.) The waxy substance is less dense than the surrounding liquid.
E.) Convection is occurring.
Explanation:
I did the assignment on Edge, 2022.
(See the attachment below.)
Hope this helped, good luck on your quiz! <3
What are some different types of stimuli?
Answer:
Mechanical, thermal,chemical
Explanation:
Answer:
chemical, temperature, pressure, and light
Explanation:
Imagine you have a radioactive sample containing both virtualium and decayed atoms of virtualium. After analysis you find it contains 10 atoms of virtualium and 40 decayed atoms . How old is your sample? Hint you must use the half life of virtualium determined earlier. BTW the half life of virtualium is 12
Answer:
COULD WE PLEASE GET THIS ANSWER?????
Explanation:
If the concentration of Sn2+ in the cathode compartment is 1.10 M and the cell generates an emf of 0.22 V , what is the concentration of Pb2+ in the anode compartment?
Answer:
[Pb] = 1.1*10^-8
Explanation:
The Eo values of the half cell reaction of the following are
Pb2+ + 2e- ==> Pb . . .Eo = -0.13 V
Sn2+ + 2e- ==> Sn . . .Eo = -0.14 V
Sn+2 is at cathode(reduction)compartment and Pb+2 is at anode(oxidation) compartment.
the overall reaction will be
Pb ==> Pb2+ + 2e- (oxidation) Eo = +0.13 V
Sn2+ + 2e- ==> Sn (reduction) Eo = -0.14 V
----------------------------------------------------------------------
Pb + Sn2+ ==> Pb2+ + Sn Eo cell = -0.01 V
Qcell = [Pb+2] / [Sn+2] ( pure Sn , Pb do not appear in Q
Ecell = Eo -0.059/n* logQ
0.22 = -0.0.1 - 0.059/2 logQ
0.23 = -0.0295logQ
LogQ= -7.796
Q = 10^-7.796≈ 1/10^8
[Pb+2] / [Sn+2] = 1/10^8
[Pb] = 1.1*10^-8
What are the products in a chemical reaction?
A. The chemical formula of the substances
B. The new substances that are produced
C. The substances that interact
D. What is left over after the reaction
Copper sulfate, when it is dissolved in water, has a blue color. When steel wool is mixed with a copper sulfate solution, the steel wool disappears, a brownish solid forms, and the color of the solution changes from blue to green.
Choose one answer that gives the best evidence that a chemical reaction took place.
A. The color change from blue to green happens in nature.
B. The disappearance of the steel wool shows that a new substance has formed.
C. The solid precipitate is a waste product in the reaction.
D. Energy is lost in this reaction like all other reactions.
Which answer did you choose? Explain your reasoning.
Answer:
A. The color change from blue to green happens in nature.
Explanation:
The color change is an indicator of a chemical reaction that has occurred. Although color changes are not necessarily good diagnostic tool to measure if a chemical reaction has occurred or not.
In this reaction, color changes is quite an effective tool Chemical changes usually involves the formation of a new product from the chemical reaction. Also, the steps are not easily reversible.For this reaction, color change is the most appropriate signal for a chemical change.The evidence that shows that a chemical reaction has taken place is the disappearance of the steel wool shows that a new substance has formed.
The electrochemical series is arrangement of elements in order of decreasing reactivity. It is important to note that the elements that are high up in the electrochemical series can displace the elements that are lower in the series from their aqueous solution.
Steel contains iron which lies above copper in the electrochemical series hence a chemical change occurs when steel dissolves in the copper solution.
Hence, the evidence that shows that a chemical reaction has taken place is the disappearance of the steel wool shows that a new substance has formed.
Learn more: https://brainly.com/question/8646601
This app is for helping people so please help me with these 2 questions
Answer:
1. The organism becomes ill or may die.
2. Pathogens.
Explanation:
(1) When an organism fails to maintain homeostasis, the organism typically becomes ill, and they will die if homeostasis cannot be re-achieved.
(2) A pathogen is a virus that can cause diseases.
Help!!
What shape would SeH2 have? Draw the molecule.
Also, if you are good with this kind of thing, please answer my other questions too!
Why is magnesium malleable?
Answer:
It is an Alkaline Earth Metal
Explanation:
Metallic bonding results from the delocalization of electrons from the parent metal atom so that positive ions are conceived to swim in a sea of electrons. This view of metallic bonding accounts for the malleability, and ductility of metals, as well as their properties of thermal and electrical conduction.
imma give BRAINEST TO EVER KNOW THIS SONG i aint took my change off in weeks if i tuck it they gon try to kill me anyway and im praying to the god of the streets (God of the streets way to big to discreet anyway hope i fly in the of my N.gga if u know this u the real OG and who is the rapper
Answer:
kevin gates with his fine self.
Explanation:
When a drawing of a circle made in the center of a piece of paper with a black marker gets wet, the marker bleeds, and as the water moves through the paper the ink separates into several colors.
What method of separation does this describe?
evaporation
distillation
filtration
chromatography
Answer:
D) Chromatography
Explanation:
Answer: It is D. chromatography.
Step-by-step explanation:
when water or dye passes through a medium and changes color then that means it must be chromatography.
(help needed please)What is the approximate difference in elevation from point C to point D?
A) 400
B) 200
C) 1500
D) 1100
Answer:
This question is incomplete
Explanation:
This question is incomplete because of the absence of attachment to show what is being referred to in the question. However, the difference in elevation from two points on the same "plane" can be calculated by subtracting the total distance from where the measurement started to point C from the total distance from where the measurement started to point D. Both measurements must have started from the same origin (usually zero).
How many significant figures are in the number 4.02 x 10^-9 ?
Answer:
3 sig figs
Explanation:
pls help
1. Calculate the mass of iron needed to make 16.25g of iron chloride (3
marks)
2Fe + 3Cl2 → 2FeCl3
Explanation: 5.6g
the molars of FeCl3 is [tex]\frac{16,25}{56+35,5.3}= 0.1[/tex] (mol)
have:
2Fe + 3Cl2 ⇒ 2FeCl3
0.1 <= 0.1
=> the molars of Fe is 0.1 mol
=> the mass of Fe is 0,1.56 = 5.6 (g)
The mass of iron required to make 16.25g of iron chloride is 5.59 g.
What is the limiting reagent?A limiting reagent can be defined as a reactant that is fully exhausted from the reaction mixture at the completion of a reaction.
When reactants are not taken in stoichiometric quantities, the limiting reactant will decide the amount of product will be formed in a reaction from the reactants.
Given, a balanced chemical equation of the reaction between iron and chlorine is:
2Fe + 3Cl₂ → 2FeCl₃
Given, the amount of iron chloride = 16.25 g
The molecular mass of the iron chloride = 162.2 g/mol
The number of moles of iron oxide = 16.25/162.2 = 0.10 mol
2 moles of iron chloride produced from iron = 2mol
0.10 mol of iron chloride produced from iron = 0.10 mol
The mass of the iron required = 0.10 × 55.85 = 5.59 g
Learn more about limiting reagents, here:
brainly.com/question/26905271
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Can someone help me pls
A group of students conducted an experiment to find out what happens to the force of magnetism between two magnets as the distance between them increases. They used the equipment you see in the illustration. They
placed spacers between the magnet in the cup and the magnet on the post to increase the distance between them. They used washers as units to measure how much force it took to pull the two magnets apart.
Answer:
40
Explanation:
Porque yo creo que asi ) :
which was an important part of dalton's atomic model
SCIENCEEEE!!!! HELPPPPP MEEEE OUTTTT!!!!
Which of the following pairs of elements would most likely combine to form a salt?
Ne and F
Ca and Cs
C And cl
Mg and cl
True or False:
C + 02 - CO2
In the chemical reaction above, the coefficient of oxygen is 2.
False
True
Check it
skip
Answer:
true the coefficient of oxygen is 2
Answer:
Explanation:
True
Consider the reaction Upper A u (upper O upper H) subscript 3 plus upper H upper I right arrow upper A U plus upper I subscript 2 plus upper H subscript 2 upper O.. Label the half-reactions as oxidation (use "O") or reduction (use "R"). 2 upper i right arrow upper I subscript 2 plus 2 e superscript minus. Upper A u superscript plus 3, plus 3 e superscript minus right arrow upper A u.
Answer:
2I- ---> I2 + 2e- = O
Au+3 + 3e- ---> Au = R
Explanation:
The first loses electrons, so it is Oxidized, and the second one gains electrons, so it is Reduced. (Also I just did this and saw the answers were O and R respectively)
Answer: o, r
Explanation:
i did the assignment on edge on 2022
What 2 things define the state of matter?
Answer: gas are well separated with no regular arrangement.
liquid are close together with no regular arrangement.
solid are tightly packed, usually in a regular pattern.
its just gas liquid and solid pls make me brainliest
Explanation:
When electricity is produced from coal the chemical energy in coal is changed to ___ energy
Answer: electrical energy
Explanation:
According to law of conservation of energy, energy remains conserved. It only transforms from one form to another.
Chemical energy is the energy stored in the bonds of molecules.
Electrical energy is the energy possessed by a body by virtue of movement of electrons.
Thus when When electricity is produced from coal the chemical energy in coal is changed to electrical energy
Vinegar and milk forming solid clumps of solid (curds) is a
Change in temperature
Formation of gas/bubbles
Formation of precipitate
Release of energy (fire/light)
Change in color
Answer:
Formation of precipitate
Answer:
all of them are correct on EDGE
Explanation:
i just took the assignment
Please help me with this question please..
Answer:
Explanation:
Argon and neon are inertial gases. So, I would choose oxygen and chlorine
Answer:
the answer is oxygen and chlorine
Oxygen and sucrose chemical equation
O2 + C12H22O11 - ->
This is a combustion reaction and requires input energy. PLEASE HELP ME! It also needs to be balanced!
Answer:
11011111111111111111122
The following reaction is a
reaction.
Answer:
??
Explanation:
What happens to rock during subduction please help I will give you Brainlyest
Answer: Here is the answer!! :)
Explanation:
A subduction zone is a region of the earth's crust where one tectonic plate moves under another tectonic plate; oceanic crust gets recycled back into the mantle and continental crust gets created by the formation of arc magmas. ... This water lowers the melting point of mantle rock, initiating melting.
Here is a graph to understand it better!:)
How can you separate sand and sugar?
Answer:
1)Filtration to remove sand
2)Evaporation to obtain sugar
Explanation:
Add water to the mixture and mix,sugar will dissolve.
Filter out the sand.
Evaporate the remaining solution to obtain the sugar.