it's the 1 and 3 I think it's that hopefully it's right
2AgF(aq)+Na2CO3(aq)=Ag2CO3(s)+2NaF(aq) net ionic equation
The net ionic equation is applied mainly in neutralization reactions, double displacement reactions and redox reactions. Therefore, the net ionic equation is Ag⁺(aq)+CO[tex]_3[/tex]²⁻(aq) [tex]\rightarrow[/tex]Ag[tex]_2[/tex]CO[tex]_3[/tex](s).
What is net ionic equation?
The net ionic equation represents a chemical equation of a reaction that give an idea of species that are really participating in the reaction. We can write net ionic equations for those electrolyte which are strong in water.
The balanced net ionic equation is
2AgF(aq)+Na[tex]_2[/tex]CO[tex]_3[/tex](aq)[tex]\rightarrow[/tex]Ag[tex]_2[/tex]CO[tex]_3[/tex](s)+2NaF(aq)
Ag⁺(aq) +F⁻(aq) +Na⁺(aq) +CO[tex]_3[/tex]²⁻(aq) [tex]\rightarrow[/tex]Ag[tex]_2[/tex]CO[tex]_3[/tex](s)+Na⁺(aq) +F⁻(aq)
Ag⁺(aq)+CO[tex]_3[/tex]²⁻(aq) [tex]\rightarrow[/tex]Ag[tex]_2[/tex]CO[tex]_3[/tex](s)
The net ionic equation cancels out ions that appear on both sides of the reaction arrow because they essentially don't participate in the reaction of interest.
Therefore, the net ionic equation is Ag⁺(aq)+CO[tex]_3[/tex]²⁻(aq) [tex]\rightarrow[/tex]Ag[tex]_2[/tex]CO[tex]_3[/tex](s).
To learn more about net ionic equation, here:
https://brainly.com/question/13161506
#SPJ2
Q.3 Which the following statements about the given reaction are correct:
3Fe(s) + 4H2O(g)- Fe203 (S) + 4H2(g)
i) Iron metal is getting oxidized
ii) Water is getting reduced
iii) Water is acting as reducing agent
iv) Water is acting as oxidizine agent
a) (i), (ii) and (iii) b)(iii) and (iv)
c) (i), (ii) and (iv) d) (ii) and (iv)
Answer:
The statements which are correct are;
c) (i), (ii) and (iv)
Explanation:
The chemical equation is presented as follows;
2Fe(s) + 3H₂O(g) → 3Fe₂O₃(s) + 3H₂(g)
Therefore, we have;
i) The iron gains oxygen atoms and therefore gets oxidized
The iron loses 3 electrons each to become oxidized to Fe³⁺ in Fe₂O₃
ii) The water loses oxygen and therefore it is getting reduced
iv) The water donates oxygen and therefore it is acting as the oxidizing agent
The correct options are (i), (ii) and (iv).
cucl2(aq)+na2s(aq)→cus(s)+2nacl(aq)
Write the net ionic equation for this reaction.
Answer:
Cu^2+ (aq) + S^2- (aq) --> CuS (s)
Explanation:
Break up all the soluble compounds into their constituent ions to get the complete ionic equation, and cross off the ones that appear the same on both sides:
Cu (aq) + 2Cl(aq) + 2Na (aq) + S (aq) --> CuS (s) + 2Na (aq) + 2Cl (aq)
2Cl and 2Na appear on both sides of the arrow, so cross those out to get the net ionic equation.
1. Convert the following temperatures to K.
a) 104 C
b) -3 C
Answer:
a) 377 k
b) 270 k
Explanation:
a) 104 + 273 = 377 k
b) -3 + 273 = 270 k
An atom of the element chromium has an atomic number of 24 and a mass number of 52. How many electrons are in an uncharged atom of chromium?
0
24
28
52
Answer:
24
Explanation:
In an uncharged atom, the number of protons is always equal to the number of electrons. For example, carbon atoms include six protons and six electrons, so carbon's atomic number is 6.
Similarly, since an atom of chromium contains 24 protons, it also contains the same amount of electrons, which is 24.
Answer:
24 is your answer
Explanation:
4. How many electrons do each of the following kinds of matter have in each atom? a. silver 47 protons electrons b. carton: 6 protons electrons Sodium: 11 protons electrons d. neon 10 protons electrons e. iodine. 53 protons electrons
Answer:
a. 47 electrons
b. 6 electrons
c. 11 electrons
d. 10 electrons
e. 53 electrons
Explanation: If you are talking about neutral atoms (where as the number of protons in an atom is equal to the number of electrons in the atom), or are just being introduced to atoms then the number of electrons will be equal to the number of protons the atom has. Or vice versa, the number of protons will be equal to the number of protons in an atom. For example, in a neutral atom, with 51 protons, will have 51 electrons. Or an atom with 5 electrons will have 5 protons.
How many molecules are there in 0.661 mol of O2 gas?
Answer:
One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.
Question 20 (2 points)
Much of the water that falls on the ground as precipitation
enters the ground through the process of infiltration
evaporates back into the atmosphere
becomes runoff and finds its way back to the ocean
forms small pools
Answer:
becomes runoff and finds its way back to the ocean
Explanation:
Precipitation refers to rainfall that reaches the earth.
Most of the rainfall that reaches the earth becomes runoff and finds its way back to the ocean.
When the rain falls on earth, some evaporates, some enters into the ground while some runs off into rivers and streams. Almost all of the rain water flows into the oceans or other bodies of water.
Hence, most of the rainfall that reaches the earth becomes runoff and finds its way back to the ocean
A blueberry bush uses energy from the Sun to make carbohydrates. Which set of energy transformations BEST describe this process?
A.radiant energy → chemical energy → nuclear energy
B.radiant energy → nuclear energy → chemical energy
C.nuclear energy → radiant energy → chemical energy
D.nuclear energy → chemical energy → radiant energy
Fusion powers the sun. This creates nuclear energy, which then goes to earth in the form of radiation. The plants get sunlight and photosynthesise (the process of getting glucose by sunlight). The answer should be C.
A 150 g sample of brass at 90.0 degrees Celsius is placed in a calorimeter cup that contains 230 g of water at 20.0 degrees Celsius. Disregard the absorption of heat by the cup and calculate the final temperature of the brass and water. Specific heat of water = 4.18 J/gC, specific heat of brass=0.380 J/gC.
Answer:
for brass
mass m1 =150g
t1=90°c
specific heat of brass s1=0.380 J/gC.
for water
t2=20°c
mass m2=230g
Specific heat of water s2= 4.18 J/gC,
Explanation:
we have
Q1=Q2
m1s1{t-t1)=m2s2(t2-t)
150×0.380(t-90)=230×4.18(20-t)
57t-5130=961.4×20-961.4t
57t +961.4t=19228+5130
1018.4t=24358
t=24358/1018.4=23.91=24°c is final temperature
All types of sciences use the same steps of the scientific method.
True
False
What happens when molecules absorb energy?
A. Nothing
B. The molecules move faster
C. The molecules move slower
Answer:
C. The molecules move slower
Explanation:
Which is element number 2&20
Answer:
2- Helium(He)
20-Calcium(Ca)
Answer:
Do you mean under 2 & 18 or under 4 & 20?
Explanation:
2 & 20 are in opposite sections of the periodic table. If you mean 2& 18 the element is Krypton or if you mean 4 & 20 the element is Strontium
What is the
difference between
dominant and
recessive traits
Answer:
An allele is dominant, it will express in a person the characteristic to which it is related. When an allele is recessive, it is less likely to express the function to which it is related. Recessive traits only occur when in a person both alleles are recessive.
"Show a general equation for polymerisation"
Answer:
Polymerisation is the chemical process of monomers joining together to form polymers, often it takes many thousands of monomers to make a single polymer.
Explanation:
A glass sphere is filled to full volume with a gas. The pressure of the gas inside the sphere is 30.0 atm, and the temperature is 30.0°C. The sphere is taken outside on a cold day. The temperature of the gas decreases to 10.0°C. What is the new pressure of the gas? Assume that the volume is constant.
Answer:
28atm
Explanation:
Using Gay lussac's law equation as follows:
P1/T1 = P2/T2
Where;
P1 = initial pressure (atm)
T1 = initial temperature (K)
P2 = final pressure (atm)
T2 = final temperature (K)
Based on the information provided in this question;
P1 = 30.0 atm, T1 = 30.0°C, P2 = ?, T2 = 10.0°C
NOTE: Absolute temperature i.e. Kelvin is required for this law
T1 = 30°C + 273K = 303K
T2 = 10°C + 273K = 283K
Using P1/T1 = P2/T2
30/303 = P2/283
Cross multiply
P2 × 303 = 30 × 283
303P2 = 8490
P2 = 8490/303
P2 = 28.02
New pressure of the gas = 28atm
A chemist determined by measurements that 0.0500 moles of nickel participated in a chemical reaction. Calculate the mass of nickel that participated in the chemical reaction.
Answer:
2.94 grams Nickle
Explanation:
All they are asking is to convert moles to grams
To do this, find the atomic mass of nickel using the periodic table: 58.693 g
0.05 mol * 58.693 g/1 mol = 2.93465 grams
How many moles are there in 3.45 moles of Carbon
Answer:
It would be 151.832775 because one mole is 44.0095*3.45 i hope this helps!
Explanation:
LITHIPODIUS NULLA
Which members of the population are the most adapted? Least adapted?
Answer:According to the Darwin’s theory “ the survival of the fittest” , any organism would survive through the process of natural selection by adapting itself to the changing environment in order to become the fittest among all of its native species.
Thus, in order to survive even after some major environmental changes, an organism is required to adapt to the new conditions.
Hence, option 2 is the correct answer which talks about adaptation as per the changing environmental condition
Explanation:
A golfer hits a golf ball with a club. The mass of the ball is 0.05 kg. The ball accelerates at
What is the net force, to the nearest newton, that accelerates the ball?
Answer:
100 n im just guess
Explanation:
if it helps.
have a good day
hope you stay safe
Phosgene (Cl2CO), a poison gas used in World War I , is formed by the reaction of Cl2 and CO. The proposed mechanism for the reaction is
Cl2⇌2Cl(fast,equilibrium)
Cl+CO⇌ClCO(fast,equilibrium)
ClCO+Cl2→Cl2CO+Cl(slow)
What rate law is consistent with this mechanism?
Answer:
Rate = k [ClCO][Cl2]
Explanation:
Cl2⇌2Cl(fast,equilibrium)
Cl+CO⇌ClCO(fast,equilibrium)
ClCO+Cl2→Cl2CO+Cl(slow)
The rate determining step from which the rate aw is obtained from is the slowest step of a chemical reaction. In this reaction, the slowest step is;
ClCO+Cl2 → Cl2CO+Cl (slow)
The rate equation for the step is;
Rate = k [ClCO][Cl2]
ClCO is an intermediate and would eventually get cancelled out from the overall rate equation.
Phosgene is the chemical used in the formation of pesticides and ios poisonous. The rate law is given as, k [chloroformylradical][chlorine gas].
What is rate law?The rate law is the relation of the concentration of the reactants and the products with that the speed of the reaction.
The reaction for the formation of phosgene is given as,
[tex]\rm Cl_{2} \rightleftharpoons 2Cl\; (fast,equilibrium)\\\\\rm Cl+CO \rightleftharpoons ClCO\; (fast,equilibrium)\\\\\\rm ClCO+Cl_{2}\rightarrow Cl_{2} CO+Cl\; (slow)[/tex]
The rate law is determined by the rate-determining step which is the slowest step of the reaction.
[tex]\rm ClCO+Cl_{2}\rightarrow Cl_{2} CO+Cl\; (slow)[/tex]
The rate of the equation is given as,
[tex]\rm Rate = k [ClCO][Cl_{2}][/tex]
As COCl is an intermediate the third step will be the rate-determining step.
Therefore, the slow step determines the rate of the reaction.
Learn more about rate law here:
https://brainly.com/question/9233410
I need help plz help me
Answer:
A
Explanation:
How much heat is required to convert 20.0 g of ice at 50.0⁰C to liquid water at 0.0⁰C? The specific heat of ice is 2.06 J/(g∙⁰C) and the heat of fusion of water is 334 J/g.
Answer:
8740 joules are required to convert 20 grams of ice to liquid water.
Explanation:
The amount of heat required ([tex]Q[/tex]), measured in joules, to convert ice at -50.0 ºC to liquid water at 0.0 ºC is the sum of sensible heat associated with ice and latent heat of fussion. That is:
[tex]Q = m\cdot [c\cdot (T_{f}-T_{o})+L_{f}][/tex] (1)
Where:
[tex]m[/tex] - Mass, measured in grams.
[tex]c[/tex] - Specific heat of ice, measured in joules per gram-degree Celsius.
[tex]T_{o}[/tex], [tex]T_{f}[/tex] - Temperature, measured in degrees Celsius.
[tex]L_{f}[/tex] - Latent heat of fussion, measured in joules per gram.
If we know that [tex]m = 20\,g[/tex], [tex]c = 2.06\,\frac{J}{g\cdot ^{\circ}C}[/tex], [tex]T_{f} = 0\,^{\circ}C[/tex], [tex]T_{o} = -50\,^{\circ}C[/tex] and [tex]L_{f} = 334\,\frac{J}{g }[/tex], then the amount of heat is:
[tex]Q = (20\,g)\cdot \left\{\left(2.06\,\frac{J}{g\cdot ^{\circ}C} \right)\cdot [0\,^{\circ}C-(-50\,^{\circ}C)]+334\,\frac{J}{g} \right\}[/tex]
[tex]Q = 8740\,J[/tex]
8740 joules are required to convert 20 grams of ice to liquid water.
What is mass in grams of 2.30 moles of Aluminum?
62.1 g Al
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableStoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
2.30 mol Al
Step 2: Identify Conversions
[PT] Molar Mass of Al - 26.98 g/mol
Step 3: Convert
Set up: [tex]\displaystyle 2.30 \ mol \ Al(\frac{26.98 \ g \ Al}{1 \ mol \ Al})[/tex]Multiply/Divide: [tex]\displaystyle 62.054 \ g \ Al[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
62.054 g Al ≈ 62.1 g Al
Why do elements have different
properties?
Alleles are represented using upper and lowercase letters like B for brown eyes and b for blue eyes.
A. True
B. False
Answer:
A. True
Explanation:
anybody knows the answers
Answer:
Metal is a better conductor than plastic so its going to absorb any cooler temperatures while the plastic stays the same.
Explanation:
chemical equation for table salt and water
Answer:
sodium chloride—is NaCl.
Explanation:
Table salt is an ionic compound, which breaks into its component ions or dissociates in water. These ions are Na+ and Cl-. The sodium and chlorine atoms are present in equal amounts (1:1 ratio), arranged to form a cubic crystal lattice.
Answer:
Chemical equation for nacl dissolving in water
NaCl(s) H2O⇌ Na+(aq)+Cl−(aq) .
Explanation:
Which types of changes must follow the law of conservation of mass?
Both physical and chemical changes
Neither physical nor chemical changes
Only physical changes
Only chemical changes
Answer: both
Explanation:
List the difference between 3 allotropes of carbon
Answer:
Diamond, graphite and fullerness
Explanation:
Diamond is clear and transparent but graphite is black and opaque