Answer:
The reaction can produce 287 grams of iron(II) carbonate
Explanation:
To solve this question we must find the moles of iron(II) chloride that react. Using the chemical equation we can find the moles of iron(II) carbonate and its mass -Molar mass FeCO3: 115.854g/mol-
Moles FeCl2:
1.24L * (2.00mol / L) = 2.48 moles FeCl2
As 1 mol FeCl2 produce 1 mol FeCO3, the moles of FeCO3 = 2.48 moles
Mass FeCO3:
2.48mol * (115.854g / mol) =
The reaction can produce 287 grams of iron(II) carbonateAnswer:
287
Explanation:
Which of the following is not an ionic compound
Answer:
bR2 since it is nonpolar
Which of the following is not a renewable source of energy?
1.) geothermal
2.) coal
3.) solar
4.) wind
2. Coal
It is non renewable energy source.
Answer: the answer would be coal
Explanation: hoped this helped!
What would make oppositely charged objects attract each other more?
increasing the positive charge of the positively charged object and increasing the negative charge of the negatively
charged object
decreasing the positive charge of the positively charged object and decreasing the negative charge of the negatively
charged object
increasing the distance between the positively charged object and the negatively charged object
maintaining the distance between the positively charged object and the negatively charged object
Answer: increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object.
Explanation:
edge
Answer:
Your answer is A.
Explanation:
What’s the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen, and 29.0% oxygen?
Which of the following naming systems would you use to nameHClO2?
Question 6 options:
a)
HYDRO________IC ACID
b)
HYDROGEN _________IDE
c)
________________IC ACID
d)
________________OUS ACID
i need help on this question
NO LINKS!
Answer:
2 experimental
Explanation:
That big lorry hit the new car.change to passive voice
5) answer is A
2NaHCO3(s) + 129k) - Na2CO3(s) + H2(g) + CO2(g)
This equation indicates that AH is
and energy must be
to complete the reaction.
A)
positive; added
B)
negative; added
C)
positive; released
D)
negative; released
Answer:
A) positive; added
Explanation:
Based on the reaction:
2NaHCO3(s) + 129kJ → Na2CO3(s) + H2(g) + CO2(g)
2 moles of NaHCO3 requires 129kJ to produce 1 mole of Na2CO3, 1 mole of H2 and 1 mole of CO2.
That means, the energy must be added being, thus, an exothermic reaction. The exothermic reactions have ΔH >0.
Thus, right answer is:
A) positive; added
Can someone help me with these??
Answer: let me see I gotta do the work first then I’ll give you the answers
Explanation:
How many moles of hydrogen gas (H2) are required to react completely with 0.75 moles of nitrogen
gas (N2)?
Answer:
2.25 moles H2
Explanation:
The equation N2+ 3H2 > 2NH3
1 mol of N2 gives 3 mol of H2
Then
. 75 mole N2 give 3*.75 = 2.25 moles of H2
why there might be something else in the water besides the reddish-brown substance?
Answer:
Tbe reddish brown substance might be the rust that formed overtime in a iron tap and over the course of time mixed with other dust and particles it might have formed another substance .
The reddish brown substance is iron oxide which is formed by the reaction of iron materials with water and air. This oxide layer above the surface of metallic parts is called rust.
What is iron oxide ?The Fe is a reddish metal more reactive towards the air and water as well. Fe is a very common in the manufacturing of many household materials. However, by the action of air and water these metallic parts undergo corrosion.
Corrosion is a chemical change involving the formation of oxide layer over the metallic surface which eventually corrode the substance and make it unusable.
Fe reacts with oxygen of water or air forming the reddish brown iron oxide Fe₂O₃ that is what called the rust. Rust can be seen in needles, vehicle parts made of iron etc.
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During a reaction, H for reactants is -750 kJ/mol and H for products is 920 kJ/mol. Which statement is correct about the reaction and correctly compares the energy in bonds?
Answer:
a
Explanation:
the ones are stronger and herder to break so it will take more energy to break them then when they are made
The statement, that describes the reaction and correctly compares the energy in bonds from the given ΔH values is "It's endothermic because the energy required to break bonds in the reactants is less than the energy released when the products are formed."
What is ΔH?The quantity of energy evolved during a chemical reaction is represented by ΔH, also known as enthalpy change.
An exothermic reaction is a chemical reaction in which heat energy is emitted. The value of ΔH is always negative in exothermic processes. An endothermic reaction is a chemical reaction that absorbs heat energy. The value ΔH of is always positive for endothermic reactions.
When the bonds in the reactants are broken, more energy is absorbed than is released when new bonds are created in the products, therefore the value of ΔH is always positive in endothermic reactions.
Hence the correct option is endothermic because the energy required to break bonds in the reactants is less than the energy released when the products are formed.
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Choose ALL
BIOTIC factors
Lesson 5.01
Question 1 options:
protists
animals
fungi
plants
salinity
Answer:
protists
animals
fungi
plants
Explanation:
i took the test let me know if im wrong tho
The biotic factors from the following options are protist, animals, fungi, and plants. Options A, B, c, and D are correct.
What are biotic factors?Biotic factors are those factors which can grow, and reproduce themselves.
Plants, animals, protists, and fungi are biotic factors that live, eat ad reproduce.
Salinity is the quality of any solution. It is not a biotic factor.
Thus, the correct options are A, B, c, and D.
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24.
What is the molar mass of CO2?
Answer:
The molecular mass of carbon dioxide is 44.01amu
if 67.8 moles of gas was measured out into a helium balloon how many molecules would be present within the balloon
Answer:
[tex]4.08x10^{25} molecules[/tex]
Explanation:
Hello there!
In this case, since the understanding of the mole-molecules relationships is analyzed via the Avogadro's number:
[tex]1mol=6.022x10^{23}molecules[/tex]
Next, we can solve the following setup by starting with the 67.8 moles of helium and obtaining the required molecules as follows:
[tex]67.8mol*\frac{6.022x10^{23}molecules}{1mol}\\\\=4.08x10^{25} molecules[/tex]
Best regards!
A loose pile of rocks and soil travels in a single large mass the mass moves a short distance downhill which mass movement does this describe
A. Creep
B. Erosion
C. Landslide
D. Slump
Which is an example of a nonaqueous solution?
gasoline
fog
mayonnaise
fruit juice
Answer: Gasoline
Explanation: Siri said so
The non-aqueous means it does not contain water. Among the given options gasoline is an example of a non-aqueous solution. The correct option is A.
What is a non-aqueous solution?The solution which is obtained by dissolving solute in any liquid other than water is defined as the non-aqueous solution. If solute is dissolved in solvent like benzene, alcohol, ether, carbon disulphide, acetone etc. forms a non aqueous solution.
The major difference between the aqueous and non-aqueous solution is that the solvent of an aqueous solution is water whereas in non-aqueous solutions, the solvent is any substance other than water.
The solvent of non-aqueous solution can be polar or nonpolar and depending on the polarity the solutes dissolve in the solvent. Here gasoline is an example of the non-aqueous solution. The gasoline is a crude oil which does not include water as an ingredient.
Thus the correct option is A.
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URGENT: Identify the subatomic particles that determine the atomic number of an element.
Answer:
the number of protons determines the atomic number
Explanation:
Ex. Aluminum has 13 protons, so it's atomic number is 13
hope this helps :)
Which pH is the most acidic
Answers choices below
A. 7
B. 14
C. 0.5
D . 1
C. 0.5
This is the answer.
(assuming that the D option is 1, if it is 0.1 then the answer is 0.1)
[tex]0.5[/tex]
Explanation:
As you know that decreasing in the concentration of OH- (i.e., 14, 13, 12, 11,..) makes to increase in the concentration of H+ ions (5,4,3,2,1).
Your simulation involved 100 atoms and eight half-life cycles. For half-life cycles 9 and later, how many radioactive nuclei would you expect to be present?
Answer:
you would expect 0 radioactive nuclei to be present
Explanation:
got it right on the assignment
Select the correct mass for each of the samples described below.
3.01 × 1023 molecules H2O
Answer:
9.00 g H2O
Explanation:
Convert molecules to grams using stoichiometry
(3.01 * 10^23 molecules) * (1 mole H2O / 6.022 * 10^23 molecules) * (18.01 g / 1 mole H2O) = 9.00 g H2O
Answer:
answer in picture
Explanation:
A student finds that the water's temperature went from 18oC to 38oC. Calculate how many calories are in the peanut.
Answer:
567 calories.
Explanation:
There 567 calories in 100 grams of peanut. In 100 grams of peanut, 49 gram is the fat, 26 grams of protein, 16 grams of carbohydrates, Sodium is 18 mg, Potassium is 705 mg. Calcium is present in peanut about 9%, Iron is 25% , Vitamin B-6 is 15% and Magnesium is 42% of their total weight. Oil content is high in the Peanut so this is the reason for high calories in peanut. It is a good source of proteins and potassium.
If you start with 30.0 grams of sodium fluoride, how many grams of magnesium fluoride will be produced?
Answer:
22.2 g of MgF₂
Explanation:
We star from the reaction:
NaF → sodium fluoride
Mg → Magnesium
2NaF + Mg → MgF₂ + 2Na
2 moles of sodium fluoride react to 1 mol of Mg in order to produce 1 mol of magnesium fluoride and 2 moles of sodium.
We convert mass of the reactant to moles:
30 g . 1mol / 41.98 g = 0.715 mol
We assume that Mg is in excess
As ratio is 2:1, if we have 0.715 moles of NaF we may produce the half of moles, of MgF₂
0.715 mol /2 = 0.357 moles of MgF₂
We convert moles to mass: 0.357 mol . 62.30g /mol = 22.2 g
Al+3 and I-
what is the chemical formula and what is the name of the compound
Answer:
AlI3 is the chemical formula and the name of compound is Aluminium iodide.
Which of the following best explains the relationship between peak to peak amplitude and semi amplitude
Answer:
Which of the following best explains the relationship between peak-to-peak amplitude and semi-amplitude? Semi-amplitude is half the distance of the peak-to-peak amplitude. Semi-amplitude is the same distance as the peak-to-peak amplitude.
Who goes to K12 and if so what grade
Answer:
I do. I am in tenth. What area are you in?
Explanation:
Answer:
8th finna be in 9th wbu
Explanation:
Which part of the atom is most directly involved in chemical bonding?
Answer:
Electron
Explanation:
How many ml are in 3,764liters?
Hint: ‘mili’ means a thousandth (1/1,000)
Round your answer to the nearest whole number
Answer:
Your answer I think would be 3,764,000 .If Im wrong please correct me and comment below.
I got my answer by converting 3,764 liters to millileters using a converter calculator
then I rounded it to the nearest whole number using the rounding calculator from calculator soup. This has worked for me in the past.
Hope this helps, good luck!
a. 35
b.65
c.81
d.180
I think it's 80 . 12
pls tell me if correct
Clouds are made up of tiny droplets of water. Which two spheres are clouds a
part of?
A. Biosphere
B. Geosphere
C. Hydrosphere
D. Atmosphere