Answer:
ionic compond
Explanation:
Sn(ClO3)4
PLEASE HELP I WILL MARK YOU BRAINLIEST How many moles of FeCl2 do you need to react 5 moles of Cl2?
Answer:
1. Ok, so you have a 1:1 ratio of FeCl2 to FeCl3, which is shown by the fact that if you react 2 moles of FeCl2 you get 2 moles of FeCl3. So therefore, if you react 4 moles of FeCl2, you'd form 4 moles of FeCl3.
2. You have a 1:2 ratio of Cl2 to FeCl2, for every 1 mole of Cl2, you need 2 moles of FeCl2, so therefore, for 7 moles of Cl2, you need 2x7moles = 14 moles
3. 1:1 ratio. So you start with 2.28moles.
4. 1:2 ratio of Cl2 to FeCl2, so therefore to get from FeCl2 to Cl2 you need to divide by 2. Therefore, you need 3.25moles / 2 = 1.625 moles
Explanation:
pls mark branliest
Consider the reaction H2(g) + I2(g) Double headed arrow. HI(g) with an equilibrium constant of 46.3 and a reaction quotient of 525. Which direction will the system shift to?
Answer:
The reaction shifts to the left.
Explanation:
Equilibrium constant (K) = 46.3
Reaction Quotient (Q) = 525
The relationship between Q and K with their implications are given as;
K = Q (No net reaction)
K > Q (Reaction shifts to the right)
K < Q (Reaction shifts to the left)
Since in this question, Q (525) > K (46.3)
The reaction shifts to the left.
Which molecule will undergo only London dispersion forces when interacting with other molecules of the same kind? a.HCl b.C2H5OH c.NH3 d.CH4
Answer:
CH4
Explanation:
London dispersion forces are a type of force acting between atoms and molecules that are normally electrically symmetric; that is, the electrons are symmetrically distributed with respect to the nucleus. They are part of the van der Waals forces(Wikipedia). It is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction(Chem Purdue).
If we consider HCl, C2H5OH and NH3, we will discover that they all have polar bonds. Consequently, dipole - dipole interaction as well as hydrogen bonds exist between their molecules.
CH4 is nonpolar. Being a nonpolar molecule, the only possible intermolecular interaction forces between its molecules is the London dispersion forces.
PLZZZ HELP BRAINILEST (science)
Answer:
i cannot see the question due to the flash you used
Explanation:
can someone answer the 4 questions? (4 is optional) it would really help me out thanks
Answer:
1)Energy converter is the transformation of one form of energy into another form .It is more specifically that the term energy conversions refers to the process through which energy is changed into forms that are useful to humans .For 100 of years humans have used an array of devices and systems for this purpose.
2) The three energy converters that you or your family use regularly are
Electric Iron Electric BulbElectric generator3)The three kinds of power plants that produce electricity in Ontario are
Nuclear Power PlantsHydroelectric Power PlantsGeothermal Power Plants4)A power plant is an industrial facility that generates electricity from primary energy most of the power plants use one more generators that convert mechanical energy into electrical energy in order to supply power to the electrical grid for society's electrical needs.
may be this was ur answer for ur question u wanted
Create a timeline to show how atomic structure was developed over the centuries?
Answer A`bousi
Explanation:
please help! I have an exam tomorrow, How do valence electrons affect how elements behave?
Answer:
Hi, valence electrons are the number of electrons present in the outermost shells of atoms of elements, they affect how sharing or transfer of electrons takes place when the atoms go into any reaction.
they also determine the oxidation state of the atom.
for example, hydrogen has one electron in its outermost shell. therefore in any reactions it tends to loose that electron or gain one more to become stable.
the reason why elements go into reactions is to become stable (to have a complete duplet or octet structure).
As you know, each shells aside from the first has maximum of 8 electrons. so for a element like chlorine which have 7 electrons in the valence shell will gain one electrons in reactions to become stable(have a complete octet structure)
valence electrons also classifies elements( metal or non-metal)
if an element have 1, 2 or 3 valence electron(s), it is likely to be a metal
if an element have 4 or 5, it can be a non-metal or a metalliod (semiconductor)
if an element have 6 or 7, it is likely to be a non-metal
if an element have 8, it is a noble/inert gas
this also explains why noble gases do not react since they already have a duplet structure, they do not need to go into reaction.
good lucks on your exams.
Answer:
The number of electrons in an atom's outermost valence shell governs its chemical properties. ... This tendency is called the octet rule, because the atoms have eight valence electrons. METALS. The most reactive metallic elements are metals from Group 1 (e.g., Na or K ) or Group 2 (e.g., Mg or Ca )
hope this helps.
15. What is the molar mass of H2CO3?
(atomic mass: C = 12.01, H = 1.01, 0 = 15.99)
Answer:
62.00
Explanation:
H2 means that there are two moles of hydrogen so multiply the atomic mass by two (1.01 × 2 = 2.02)
C only has one mole sp leave 12.01 alone
And multiply oxygen by 3 because there are three moles of oxygen (15.99 × 3 = 47.97)
Add them all together!
2.02 + 12.01 + 47.97 = 62.00 for molar mass
A STACK OF BOOKS WEIGHED 5 KILOGRAMS. ONE BOOK, WHICH WEIGHED 1,000 GRAMS, WAS
REMOVED FROM THE STACK HOW MUCH DID THE REMAINING BOOKS WEIGH?
Answer:
the remaining books weigh 4 kilograms or 4000 grams
An ionic compound that conducts electricity is called an ______
Answer:
Electrolyte
hope it helps and your day will be full of happiness
20. How many atoms of Lithium (Li) are in the REACTANTS side of the
equation?
Answer:
2 atoms
Explanation:
The reactants side is the left side of the arrow. Li represents lithium and there is a 2 next do it which indicates that there are 2 lithium particles or atoms
why do scientist think the earths core have iron in it .
Look at the dots around each symbol and the energy levels from the resources above;
Answer the questions in the text entry option for this assignment.
Copy and paste questions and respond in complete sentences.
Include a space between each question.
Be specific with your responses for each question. Assume your reader has no knowledge of the subject and you are teaching them via your answers.
Please answer the following questions:
Why does Na have only one dot?
Why do none of these diagrams show more than 8 dots?
What relationship do you notice between the dots in these two charts?
The number of dots that hydrogen and helium have in their dot diagram is the same as the number of electrons shown for them on the Periodic Table. Why? (Hint: Octet Rule (Links to an external site.))
Hello! Here's the answer I was able to come up with:
Why does Na have only one dot?
Sodium, or Na, has only one valence electron. (This makes the atom tend to participate in ionic bonding and "give" its single valence electron to an atom like chlorine.)
Why do none of these diagrams show more than 8 dots?
It is physically impossible for an atom to have more than 8 electrons in its valence layer, according to the Octet Rule.
What relationship do you notice between the dots in these two charts?
The dot diagram for each element represents the number of electrons each element will have in its outermost, or valence, shell. (2-8-8)
The number of dots that hydrogen and helium have in their dot diagram is the same as the number of electrons shown for them on the Periodic Table. Why?
An atom can have a maximum of two electrons in its innermost layer. Hydrogen and helium have only one and two electrons, respectively, so they don't have enough electrons to actually have more than one layer. Therefore, their outermost layer is, in fact, their only layer. This is why the number of dots that hydrogen and helium have in their dot diagram is the same as the number of electrons shown for them on the Periodic Table.
Don't copy this word for word! You will most likely be in trouble for plagiarism. Instead, rewrite these ideas in your own words, or paraphrase. Good luck, and I know you can do it! ♥
8. Write the notation of an atom 'X', if the mass number is A and the atomic number is Z.
Answer:
[tex]^A_ZX[/tex] is the notion of an atom 'X', if the mass number is A and the atomic number is Z
Explanation:
The symbol of the element is "X"
The notion comprises of symbol of element "X" in the center.
On the upper left side of the symbol mass number "A" is kept and on the lower left side of the symbol, atomic number "Z" is kept.
Thus, notion will be
[tex]^A_ZX[/tex]
Why are metals so strong and hard ?
Answer:
Metals are tough because of an effect called plasticity
Explanation:
if you want to know more go to this site
https://en.wikibooks.org/wiki/A-level_Physics_(Advancing_Physics)/Metals#:~:text=Metals%20are%20tough%20for%20the,This%20effect%20is%20called%20plasticity.
Answer:
The strength of metal depends upon the status of its molecular bonding in the lattice. Stronger the forces stronger will be the metal.
what happens when
limestone is heated
Answer:
When limestone is heated strongly, the calcium carbonate it contains absorbs heat (endothermic ) and decomposes to form calcium oxide. Calcium oxide (also known as quicklime) is a key ingredient in the making of cement and is also used to make certain types of plaster.
Explanation:
Limestone heated
When limestone is heated strongly, the calcium carbonate it contains absorbs heat (endothermic ) and decomposes to form calcium oxide. ... Calcium oxide (also known as quicklime) is a key ingredient in the making of cement and is also used to make certain types of plaster.
Burning Limestone
Burning limestone, which is calcium carbonate, gives you quick lime, calcium oxide. Mixed with water this produces slaked lime, calcium hydroxide. ... This is soft when first mixed, but with time absorbs carbon dioxide from the atmosphere and hardens as it reverts back to calcium limestone.
Limestone exposed to heat and pressure.
Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism. ... Under the conditions of metamorphism, the calcite in the limestone recrystallizes to form a rock that is a mass of interlocking calcite crystals.
How can sand be classified as individual evidence?
Answer:
Individual Characteristics are properties of physical evidence that can be attributed to a common source with a high degree of certainty. Examples of individual evidence include anything that contains nuclear DNA, toolmarks, and fingerprints.
Explanation:
Which statement is correct about the law of conservation of energy?
Energy is created when water freezes.
Energy is destroyed when sugar is burned.
Energy stays inside molecules permanently.
Energy is transferred when atoms are rearranged.
Answer:
Energy is transferred when atoms are rearranged
Explanation:
Breaking bonds between atoms need energy. When new bonds are formed, energy is released
The law of conservation of energy is energy isn't created or destroyed
A and B are wrong because there is creation or destruction of energy
C is wrong because energy can be transferred (think touching a hot stove with your finger. heat is transferred from the stove to your finger OUCH!)
D is correct because the energy is still there, but in a different form
2. Describe two ways in which you could decide when an
acid has been completely neutralised by an insoluble
carbonate.
Answer:
search in chrome u will get your answer
Explanation:
Predict the shape of the molecule.
B. trigonal planar
A. linear
D. bent
C. tetrahedra
2A → B + C The above reaction is run and it is found that a plot of the natural log of the concentration versus time is linear. This indicates that the reaction is ...
Answer:
zero order reaction
Explanation:
The seem to be a reaction is zero order as the data only fits to zero order integrated rate law.
Integrated rate law:
[A] = [A]_0 – kt
Here y = [ A] and slope is -k , so when we plot concentration of A with respect to t then we get the equation in the form of line
y = mx + c
So the answer Zero order in [A]
Consider a buffer solution that is 0.50 M in NH3 and 0.20 M in NH4Cl. For ammonia, pKb=4.75. Calculate the pH of 1.0 L of the solution upon addition of 30.0 mL of 1.0 M HCl to the original buffer solution.
Express your answer to two decimal places.
***will mark Brainliest for right answer ***
The pH of the solution is 9.56.
Given:
Mol of NH₃ = 0.50
Mol of [tex]NH_4^+[/tex] = 0.20 to start (NH₄Cl dissolves completely)
Molarity = 1.0 M
30.0 mL of 1.0 M HCl is 0.0300 mol of HCl.
This will react with the NH₃ to produced 0.030 mol of [tex]NH_4^+[/tex] .
Henderson-Hasselbach equation:This equation is used to calculate pH. It is an approximate equation that shows the relationship between the pH or pOH of a solution and the pKa or pKb and the ratio of the concentrations of the dissociated chemical species
pH = pKa + log(base/acid)
pKa = 14 - pKb
pKa= 14 - 4.75
pKa= 9.25
pH = 9.25 + log(0.47/0.23)
pH = 9.56
Thus, the pH of the solution is 9.56.
Find more information about pH here:
brainly.com/question/22390063
Is Octisalate (C15H22O33) ionic or covalent?
Name the following compounds:
Answer:
why
Explanation:
why don't we need to answer, did you already found the answers
which horizon has the least weathered rocks? How do you know?
Answer:
C: The C horizon is a subsurface horizon. It is the least weathered horizon. Also known as the saprolite, it is unconsolidated, loose parent material. The master horizons may be followed by a subscript to make further distinctions between differences within one master horizon.
Explanation:
(16m)(x)=(0.10)(1.5l)
Answer:
0.192 M NaOH
Explanation:
how does the compound NaOH contain ionic and covalent bonds?
Answer:
Explanation:
OH forms a covalent bond. However, OH itself is negatively charged. Therefore, it can form ionic attractions to the positively charged sodium (Na+) ions.
Is this answer right ?
Answer:
YESExplanation:
Explanation
#KEEPSTUDYINGYes because it released the most amount of heat overall!!! well done xx
Sorting and separating are ways to classify matter using _______ properties. Your answer
I need help on this :/
Answer:
Physical
Explanation:
Hope this helps :)
light behaves as a longitudinal wave
Answer:
No, light behaves as a Transverse Wave. All electromagnetic waves behave as transverse waves.