Answers
Answer:
The movement of materials based on differences in temperature and density, I believe
Explanation:
Related Questions
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What is the name of the ionic compound: Sr(MnO4)2
Answers
Answer:
Strontium Permanganate
Explanation:
how do you solve this ?
Answers
1mol of Ba contains
[tex]\\ \sf\longmapsto 6.023\times 10^{23}atoms[/tex]
No of moles in 17atoms
[tex]\\ \sf\longmapsto \dfrac{No\:of\:atoms}{Avagadro\:no}[/tex]
[tex]\\ \sf\longmapsto \dfrac{17}{6.023\times 10^{23}}[/tex]
[tex]\\ \sf\longmapsto 2.82298\times 10^{-23}mol[/tex]
Option 2
Describe a few rocks that are composed of nonmineral matter
Answers
The electrons in the outermost shell are called valence electrons. How many valence electrons does the
above atom have?
Answers
Answer:7
Explanation:All halogens have 7 valence electrons. Valence electrons are the total number of electrons present in the outermost shell of an atom (i.e. Seven valence electrons. There are thus 7 valence electrons for Fluorine, 2 in the 2s orbital, and 5 in the 2p orbitals.
compounds may be represented by chemical formulas. in the chemical formula for water which is h20, the 2 which represents the number of hydrogen atoms is called
Answers
Answer:
B) The subscript.
Explanation: In the chemical formula for water which is H20, the 2 which represents the number of hydrogen atoms is called subscript.
PLS HELP I WILL GIVE BRAINLIEST IF YOU ARE RIGHT Which organelle is used for
transportation?
A nucleus
B. golgi bodies
C. cell membrane
D. endoplasmic reticulum
Answers
Answer:
a
Explanation:
What type of reaction is this? 2H2 + O2 ==>2H 20 + Energy
Answers
Answer:
Combustion
Explanation:
Use the atomic model below to answer the following questions: 1 pt for each blank
How many protons? How many neutrons? What is the name of this atom?
its a k12 test question TwT
Answers
Answer:
Explanation:
ALRIGHT EPIC GAMER IM GONNA INTRODUCE YOU TO THE AWESOME WORLD OF THE PERIODIC TABLE
look at this
6
C
Carbon
12.011
ok so this is what one block on the periodic table looks like
the protons and electrons are going to be the smaller number
so the protons and electrons for carbon are 6
but your question does not ask for electrons so its fine.
How many protons? LOOK AT THE SMALLER NUMBER IN ELEMENT BLOCK ON PERIODIC TABLE.
How many neutrons? Take the bigger number and subtract the smaller number from it. so it would be for carbon: 12.011 - 6 = 12 neutrons.
to find the name of the atom, just count the number of electrons and then look for the element with the same number to find the name
A 3.33 gram sample of iron ore is transformed to a solution of iron(II) sulfate, and this solution is titrated with 0.150 M potassium dichromate. If it required 41.4 mL of potassium dichromate solution to titrate the iron(II) sulfate solution, what is the percentage of iron in the ore
Answers
Answer:
tobacco
Explanation:
Use the galvanic cell reaction to answer the question.
2Cr(s) + 3Cu2+(aq) → 2Cr3+(aq) + 3Cu(s)
Which half reaction occurs at the cathode? (1 point) plzz helpp
3Cu2+(aq) + 6e– → 3Cu(s)
2Cr(s) → 2Cr3+(aq) + 3e–
3Cu2+(aq) + 2e– → 3Cu(s)
2Cr(s) → 2Cr3+(aq) + 6e–
Answers
Answer: 3Cu2+(aq) + 6e– → 3Cu(s)
Explanation:
I took the test:)
The galvanic cell reaction is
2Cr(s) + 3Cu⁺²(aq) → 2Cr⁺³(aq) + 3Cu(s) then the half-reaction occurs at the cathode is - 3Cu⁺²(aq) + 2e⁻ → 3Cu(s)
A galvanic cell reaction is a redox reaction that takes place in two half-reactions oxidation and reduction. At anode oxidation reaction and at cathode reduction reaction takes place.
to identify the oxidized and reduced atoms we must assign oxidation states to all atoms.
reactant side:
For copper, it is in its ionic form: Cu⁺²
For chromium, it is in its atomic form: Cr⁰
Product side:
For copper, it is in its atomic form = Cu⁰
For chromium, it is in its ionic form = Cr⁺³
Each copper atom is reduced because its oxidation state decreases from +2 in the simple cation to zero in the metal.It means copper undergoes reduction.Thus, the Reduction half-reaction at cathode would be -
3Cu⁺²(aq) + 2e⁻ → 3Cu(s)
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When table salt forms, which action occurs between the reacting elements?
O Chlorine donates an electron to sodium.
O Sodium shares an electron with chlorine.
O Chlorine exchanges an electron with sodium
Sodium donates an electron to chlorine.
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Answer:
sodium hared an electron with chlorine
Explanation:
At its most basic level, heat is just...
(A)Light
(B)Energy
(C)Waves
Answers
Answer:
b
Explanation:
I think not for sure tho
Answer:
At its most basic level, heat is just
B energy
Explanation:
describe something with numbers in science
Answers
Which piece of evidence is an indication that a chemical reaction has occurred?
boiling of a substance
a change in color of a substance
melting of a substance
freezing of a substance
Answers
Answer:
change of color of substance
Explanation:
I hope it helps
5. How many moles of tin (II) fluoride are there in 908 g?
Answers
Answer:5.78
Explanation:
chemist has three different acid solutions. The first acid solution contains 15 % acid, the second contains 25 % and the third contains 70 % . They want to use all three solutions to obtain a mixture of 80 liters containing 30 % acid, using 2 times as much of the 70 % solution as the 25 % solution. How many liters of each solution should be used
Answers
Answer:
16L of 70% solution
32L of 25% solution
32L of 15% solution
Explanation:
x = volume of 70% acid solution
y = volume of 15% acid solution
2x = volume of 25% acid solution
2x + x + y = 80
3x + y = 80 (×8)
24x + 8y = 640 → 24x = 640 - 8y
0.7x + 0.25(2x) + 0.15y = 0.3(80)
⁷/₁₀.x + ¹/₂.x + ³/₂₀.y = 24
¹²/₁₀.x + ³/₂₀.y = 24 (×20)
24x + 3y = 480
(640 - 8y) + 3y = 480
640 - 5y = 480
5y = 160
y = 32
3x + 32 = 80
3x = 48
x = 16
What is not one of the four main ingredients in beer?
Answers
Explanation: I don't have an answer, as this seems to be a multiple choice, without any choices given, however, the four main ingredients essential to making beer is water, yeast, barley, and hops. If this doesn't answer your question, some ingredients included in beer, but not needed, is orange peels, cinnamon, and berries/fruits.
Comment on this if you need further information, if this didn't answer your question!
Although they both contain the same element, the metal copper (Cu)
and the compound copper sulfate (CuSO,) are very different substances.
Why can substances that contain the same element have very different
properties?
Answers
Answer:
because of the way they've bonded
Explanation:
Ionic bonding promotes the creation of a soluble salt. and high melting and boiling points
Covalent bonding promotes formation of molecules.
Polar covalent bonding promotes solubility in polar water
Metallic bonding promotes malleability, ductility, and ability to conduct heat and electric current.
according to this do they change
Explain with three or more sentences why dog island has valid information or why the website is a hoax’s
Answers
Which of the following is a scientific question about the planet Jupiter?
A. Why was Jupiter named after a Roman god?
O B. Why is Jupiter a fascinating planet to observe?
C. How often is Jupiter visible in the nighttime sky?
D. Does the big red spot on Jupiter look like a giant eye?
SHRMIT
Answers
Answer:
C
Explanation:
All of the other options fall under either history or subjective opinion, and C is the only one which refers the actual properties of the planet itself.
Which scenario involves a reaction that is at equilibrium?
A)The reaction is only producing products.
B)The reaction is producing more reactants than products.
C)The reaction is producing more products than reactants.
D)The reaction is producing reactants and products at an equal rate.
PLEASE HELPP AND QUICK!!! I WILL GIVE BRAINLIST!!
Answers
D)The reaction is producing reactants and products at an equal rate.
The scenario which involves a reaction at equilibrium is; The reaction is producing reactants and products at an equal rate. Option D is correct.
At equilibrium, the forward and reverse reactions of a chemical reaction occur at the same rate. It means the rate of formation of products from reactants is equal to the rate of formation of reactants from products. There is no net change in the concentrations of reactants and products over time, and the system is in a stable state. The concentrations of both reactants and products remain constant, and the reaction appears to have stopped.
In simple terms, at equilibrium, the reaction is balanced, and there is no preference for the formation of either reactants or products. The forward and reverse reactions are happening simultaneously at an equal rate, resulting in a dynamic balance between reactants and products. This state is represented by a double-headed arrow in chemical equations, indicating that the reaction is reversible and at equilibrium.
Hence, D. is the correct option.
To know more about reactants here
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PLZ HELP ITS TIMED AND IM STUCK
Answers
Answer:
I belive its A
Explanation:
A makes more sence then all of them
why does my science teacher have to be so evil honestly chemistry isnt tbat important for the majority of people
Answers
doing chem alone is fun but in school its not at all
Drinking water should have sufficiently low levels of __________ to prevent disease. What is the missing word in this sentence?
Answers
Answer:
Microbes is ur answer. Hope it helps! Have a good day!
Explanation:
Why is this process significant? Mitosis is important in the production of alleles. Mitosis is important in the production of alleles. Mitosis is important for the production of diploid cells. Mitosis is important for the production of diploid cells. Meiosis is important in the production of haploid gametes. Meiosis is important in the production of haploid gametes. Meiosis is important in the production of clones
Answers
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination. HOPE it helps
¿Quién es considerado el padre de la teoría del átomo?
Answers
John Dalton at times was known as the father of modern atomic theory.
/
En ocasiones, John Dalton fue conocido como el padre de la teoría atómica moderna.
Frases con masa atómica
Answers
Answer:
Si ha mirado una tabla periódica, es posible que haya notado que la masa atómica de un elemento rara vez es un número par. Dupdo
Un Dalton, también conocido como unidad de masa atómica, es aproximadamente la masa de un solo protón o neutrón. Dupdo
Es decir, el deuterio tiene el doble de masa atómica que el protio y el tritio tiene tres veces la masa atómica del protio. Dupdo
El número bariónico, que es equivalente al número de masa atómica, debe permanecer constante para que se produzca una reacción.
Explanation:
What does Hg mean on the periodic table
QUICKKK HELPPP ASAPP
Answers
Answer:
Element Mercury
Explanation:
What element does Chlorine go in?
- metals
-not metals
-Metalloids
Answers
Answer:
non of them it is
halogen elements
Paul made a list about alkaline earth metals.
Alkaline Earth Metals
• gain two electrons
• are found in group two
• ions will be positive two
include elements Be, Mg, Ca
Paul made a mistake on his list. Which BEST describes the mistake Paul made?
A
Alkaline earth metals do not gain two electrons; they lose two electrons.
В
Alkaline earth metals are not found in group two, they are found in group one.
C
Alkaline earth metal ions will not be positive two; the ions will be negative two.
D
Alkaline earth metals do not include elements Be, Mg, and Ca; they include Co, Ni, and Cu.
2021 Illuminate Education Inc.
Answers
Answer:
answer is A. Alkaline metal lose two electrons not gain
Answer: im 99.99999% sure it is A
Explanation:
