Answer: Heat of reaction
Explanation:
Change in entropy is the difference between the entropy of products and the entropy of reactants.
Heat of reaction is the energy released or absorbed during the course of the reaction. It is difference between the potential energy of the products and the potential energy of the reactants.
Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.
Reaction complex is the short lived intermediate formed when reactants are coverted to products.
Please help me find the answer, thank you.
Answer:
Chlorine hope i helped.
Explanation:
the process shown was used by Mendel during his experiments. What is the process called?
Answer: cross-pollination
Explanation:
True or False: A heterozygous genotype produces the dominant phenotype because the dominant allele masks the recessive allele.
Is it true or false guys??
chem question!!
please help!!!
Is the following chemical equation balanced? 1 C2H6+ 102 - 3 H2O + 2
CO2 *
Answer:
No
Explanation:
Answer: smallest whole numbers are 2, 7, 4 and 6
Explanation: C2H6 + 3.5 O2. ⇒ 2. CO2 + 3 H2O
Deforestation affects which of the following?
O none of the cycles
Owater cycle and carbon cycle
O carbon cycle only
O water cycle only
Answer:
water cycle and carbon cycle
What type of shape does a liquid have?
Answer:
no definite shape
Explanation:
Answer:
Liquids have no definite shape (takes the shape of its container) they have a definite volume. Particles are free to move over each other, but are still attracted to each other.
Explanation:
Hope this helps!
Dos objetos presentan fuerzas eléctricas repulsivas entre sí. ¿Cómo pueden ser las cargas eléctricas de estos objetos?
Answer:
Las cargas eléctricas de los objetos son ambas positivas o son ambas negativas.
Explanation:
Si dos objetos presentan fuerzas eléctricas repulsivas entre sí, quiere decir que ambos tienen el mismo tipo de carga.
Las cargas iguales (positivo con positivo, o negativo con negativo) se repelen, mientras que las cargas diferentes (positivo con negativo) se atraen.
Help a #QUEEN out PLSSSS!!!
Write a balanced chemical equation based on the following description:
aqueous potassium phosphate reacts with aqueous nickel(II) bromide to
produce solid nickel(II) phosphate and aqueous potassium bromide.
the balanced chemical equation was shown here :
2 K3PO4 (aq) + 3 NiBr2(aq) ------------>> Ni3(PO4)2 (s) + 6 KBr (aq)
The balanced chemical equation when aqueous potassium phosphate reacts with aqueous nickel(II) bromide to produce solid nickel(II) phosphate and aqueous potassium bromide is:
2 K₃PO₄(aq) + 3 NiBr₂(aq) ⇒ Ni₃(PO₄)₂ + 6 KBr(aq)
Let's consider the unbalanced chemical equation that occurs when aqueous potassium phosphate reacts with aqueous nickel(II) bromide to produce solid nickel(II) phosphate and aqueous potassium bromide.
K₃PO₄(aq) + NiBr₂(aq) ⇒ Ni₃(PO₄)₂ + KBr(aq)
We will balance it using the trial and error method.
We will balance Ni atoms by multiplying NiBr₂ by 3.We will balance P atoms by multiplying K₃PO₄ by 2.2 K₃PO₄(aq) + 3 NiBr₂(aq) ⇒ Ni₃(PO₄)₂ + KBr(aq)
We will get the balanced equation by multiplying KBr by 6.
2 K₃PO₄(aq) + 3 NiBr₂(aq) ⇒ Ni₃(PO₄)₂ + 6 KBr(aq)
The balanced chemical equation when aqueous potassium phosphate reacts with aqueous nickel(II) bromide to produce solid nickel(II) phosphate and aqueous potassium bromide is:
2 K₃PO₄(aq) + 3 NiBr₂(aq) ⇒ Ni₃(PO₄)₂ + 6 KBr(aq)
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How many grams of magnesium
sulfate (MgSO4) are dissolved in
0.965 L of a 0.0575 M solution?
Molar Mass Mg: 24.30 g/mol
Molar Mass S: 32.06 g/mol
Molar Mass O: 16.00 g/mol
Explanation:
Concentration question....
0.965L x (0.0575 mol MgSO4 / 1L) x (120.4g MgSO4 / 1 mol MgSO4) = 6.68g MgSO4
The concept molarity is used here to determine the grams of magnesium sulfate dissolved in 0.965 L of a 0.0575 M solution. The mass of magnesium sulfate in grams is 6.68 g.
What is molarity?The molarity of a solution is defined as the number of moles of the solute present per litre of the solution. It is generally represented by the unit mol/L. The equation used to calculate the molarity is:
Molarity = Number of moles of the solute / Volume of the solution in litres
The molar mass of MgSO₄ = 120.36 g/mol
We have 0.0575 M solution.
That is 0.0575 mol/L × 120.36 g/mol = 6.9207 g/L
Here we want mass in 0.965 L. So the mass is:
Mass = 0.965 L × 6.9207 g/L = 6.68 g
Thus the mass in grams of magnesium sulfate is 6.68 g.
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Use the kinetic energy equation to explain why speed has a greater impact on kinetic energy than mass.
Answer: Hopefully this helps! sorry if not. :))
Speed has a greater impact on mass because its increases in velocity have an exponentially greater impact on translational kinetic energy because kinetic energy is proportional to velocity squared. Doubling an object's mass would only double its kinetic energy, however doubling its momentum would quadruple its velocity.
A3.00 mol sample of CO2 (g) is in a rigid 6.00 L container at 400.°C.
Which of the following is the pressure of the gas?
16.4 atm
27.6 atm
200. atm
995 atm
Answer:
i'm thinking 27.6 not sure
Explanation:
Can carbon and hydrogen form double bonds between them?
Answer:
Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Carbon can form single, double, or triple covalent bonds with other carbon atoms.
The carbon-hydrogen bond (C–H bond) is a bond between carbon and hydrogen atoms that can be found in many organic compounds. This bond is a covalent bond meaning that carbon shares its outer valence electrons with up to four hydrogens. This completes both of their outer shells making them stable.
^Hope it helps, Hazel^
Is there massless ness in space?Why?
Which is an example of kinetic energy?
A. A stretched rubber band
B. Wind
C. Water in a reservoir
D. Natural gas
E. An object suspended above the ground
Answer:
B. Wind
Explanation:
Kinetic energy is moving
What is the most general name for any single type of matter that is made from a specific arrangement of atoms?
A.
substance
B.
solid
C.
molecule
D.
element
Answer:
The answer is C. substance
Explanation:
I did this on study island and got it right, hope you enjoy.
What is the molarity of .65 L of solution containing 63 grams of NaCl? (dont forget to convert grams to moles)
Answer:
1.66 M
Explanation:
Molarity = moles/L solution
We have the following data:
mass NaCl = m = 63 g
volume of solution = V = 0.65 L
Thus, we first convert the mass to moles with the molar mass of NaCl (MM):
MM(NaCl) = 23 g/mol Na + 35.4 g/mol Cl = 58.4 g/mol
moles NaCl = m/MM = 63 g/(58.4 g/mol)= 1.08 mol
Finally, we divide the moles into the volume of solution to calculate the molarity:
M = moles NaCl/V = 1.66 mol/L
PLEASE HELP!!!!! 10 POINTS!!
What electron could have quantum numbers n=3, l=0, ml=0, ms=-1/2
Answer:
Explanation:
It is a 3s electron
Difine the term compound
Answer:
Its when like two pure substances are like combined into one.
Explanation:
please help me with this chem question!!
Answer:
caca123
Explanation:
UM
Please help me find the correct answer, thank you.
Answer:
The third line
Explanation:
The first one us wrong because they're not all found inside,electron is outside.
The second one is wrong as I explained previously.
Lastly the fourth line is wrong because protons are found in the nucleus.
Fluorine, chlorine, and bromine react with gold.
which 1 of the 3 elements will be the most reactive with gold
thanks
Answer:
gold i believe or possibly bromine
Explanation:
q- how does fluorine react with gold
a- this fluoride compound features gold in its highest known oxidation state. this red solid dissolves in hydrogen fluoride, but these solutions decompose, liberating fluorine.
q- how does chlorine react with gold
a- gold does react with halogens. it'll, for example, react very slowly with chlorine gas at room temperature to form gold chloride, AuCl3. if gold chloride is heated gently, it will decompose to release the pure elements again.
q- how does bromine react with gold
a- gold in bromine solutions dissolves according to electrochemical/chemical (EC) mechanisms. ... in the chemical composition of the mechanism, this monovalent gold bromide disproportionate into gold and stable AuBr −4 , which reports into solution. with respect to pH, there are two characteristic dissolution regions.
** sorry that i can't provide a sure answer**
good luck :)
i hope this helps
have a nice day!
Fluorine will be most reactive with gold.
What is fluorine?
Of almost all of the elements, fluorine seems to be the most electronegative as well as reactive. Fluorine would be a diatomic, pale yellow, extremely corrosive, combustible gas with a strong smell. The lightest halogen would that be. It produces oxygen and even the incredibly corrosive hydrofluoric acid when it combines strongly with water.
What is reactive?Reactivity would be a substance's capacity to chemically combine with several other substances. Iron, for instance, reacts vigorously with oxygen.
As you move down the group, the halogens, which are non-metal elements in Group 7, become less reactive. In contrast to the alkali metals within Group 1 of the particular periodic table, this trend is the opposite. One of the most reactive elements in Group 7 was fluorine.
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What is a solute?
A. The substance that is dissolved in another substance
B. The substance that dissolves another substance
C. The mixture of one substance dissolved in another
D. The remaining substance that does not become dissolved
A solute is a substance that is dissolved in another substance (option A).
What is a solute?A solute is any substance that is dissolved in a liquid solvent to create a solution.
This means that a solute + solvent = solution. For example; sugar (solute) is dissolved in water (solvent) to form a sugary solution.
Therefore, a solute is a substance that is dissolved in another substance.
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A solute is any substance that is dissolved in another substance (Option A).
What is a solute?A solute is any type of substance whose molecules are able to form chemical bonds with molecules of solvent in a solution.
Solutes include, for example, hydrophilic substances that dissolve into water such as glucose, cellulose, aminoacids , etc.
In conclusion, a solute is a substance dissolved into another (Option A).
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A scientist combines three atoms of chlorine and six atoms of sodium resulting in a chemical reaction. How many atoms of chlorine must be in the product?
I uploaded the answer to a file hosting. Here's link:
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Is carbon a metal or a nonmetal? How many valence electrons does a carbon atom have?
Answer:
carbon is a nonmetal with 4 valence electrons
Explanation:
The element carbon is on the nonmetal section of the periodic table.
_____________ is the force or pressure of electricity and is compared to the amount of water pressure in a hose.
Answer:
Voltage.
Explanation:
Voltage is the force or pressure of electricity and is compared to the amount of water pressure in a hose.
Answer:
Voltage is the force or pressure of electricity and is compared to the amount of water pressure in a hose.
the provided balanced equation applies to the reaction that takes place between lithium, hydroxide and sulfuric acid. 2LiOH + H2SO4 --> Li2SO4 + 2H2O.
If the reaction begins with 26.7 grams of lithium hydroxide (LiOH) and 164.048 grams of sulfuric acid (H2SO4), how many grams of lithium sulfate (Li2SO4) is produced? Assume 100% yield. Round your answer to the nearest tenth of a gram
Answer:
About 60 grams.
Explanation:
The on point answer is 61.28 grams.
HELP PLS THANK YA!!!
Answer:
there is the answers. hope this helps
What is the molar mass of Ca(NO3)2?
a 102.2 g/mol
b 134.1 g/mol
c O 164.1 g/mol
d 0 204.2 g/mol
Answer:
C.164.1g/mol
Explanation:
40+14×2+16×6
164
The molar mass of Ca(NO3)2 is 164.1 g/mol.
What is Calcium nitrate?
Calcium nitrate, also called Norgessalpeter (Norwegian salpeter), is an inorganic compound with the formula Ca(NO3)2(H2O)x. The anhydrous compound, which is rarely encountered, absorbs moisture from the air to give the tetrahydrate. Both anhydrous and hydrated forms are colourless salts. Calcium nitrate is mainly used as a component in fertilizers, but it has other applications. Nitrocalcite is the name for a mineral which is a hydrated calcium nitrate that forms as an efflorescence where manure contacts concrete or limestone in a dry environment as in stables or caverns. A variety of related salts are known including calcium ammonium nitrate decahydrate and calcium potassium nitrate decahydrate.
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