12 moles of Cu is how many grams of Cu?
Cu = 63.55 grams/mole
Answer needs to be rounded to 2 decimal places: 0.00

Answer:. Elements in the Periodic Table are arranged according to increasing numbers of ______atoms_______, which is called the ______atomic _____ _______number_______ on an element key.

Explanation: I just learned about this at school!! ; )

As the chemical reaction proceeds, a gas is formed with the water molecule and CH₃COONa, so the mass of the remaining solid product is less than 345 g.

Stoichiometry tells about the relative amount of reactants and products before and after the reaction in terms of coefficient.

Given chemical reaction is:

NaHCO₃ + CH₃COOH → CH₃COONa + CO₂ + H₂O

From the stoichiometry of the reaction it is clear that 1 mole of both the reactants will form products. And for the formation of product amounts of the reactants get wholly consumed. From 345 grams of reactants carbon dioxide gas, water and sodium acetate salt is formed, so the mass of this formed salt is less than 345 grams.

Hence, option (C) is correct i.e. less that 345g.

To know more about stoichiometry, visit the below link:
https://brainly.com/question/25996347

Answer: 0.5 mol h2o

Explanation: Hope this help :D

Answer:

Explanation:

You actually are being pulled towards everything and everything is being pulled towards you.  Everything exerts a gravitational force, but our force and the force of the objects around us is not strong enough to actually move objects

Answer:

pH = 11.70

pOH = 2.298

Explanation:

As we know

NaOI + H2O  NaOH + HOI

pH = 7 + ½ (pKa + log (HOI))

Substituting the given values, we get –

pH = 7 + ½ (10.64 + log (0. 0.05784))

pH = 7 + ½ (10.64 -1.2377)

pH = 11.70

pOH = 14 – pH  

pOH = 14 -11.70

pOH = 2.298

Answer: A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth's mantle to the surface, solidifying to create new oceanic crust. ... Two plates sliding past each other forms a transform plate boundary.

Answer:

Br₂ + 2e⁻  ⇄  2Br⁻    Half reaction of reduction

2I⁻ ⇄  2e⁻  +  I₂   Half reaction of oxidation

Br₂ + 2I⁻ +  2K⁺  ⇄   I₂  +  2Br⁻  + 2K⁺

Explanation:

This is an easy redox reaction:

Br₂  +  2KI →  I₂  +  2KBr

We determine the oxidation states.

0 for the elements at ground state.

K does not change the oxidation state during the reaction.

Bromine is reduced to bromide (oxidation state decreases)

and iodide is oxidized to Iodine (oxidation state increases)

Br₂ + 2e⁻  ⇄  2Br⁻    Half reaction of reduction

2I⁻ ⇄  2e⁻  +  I₂   Half reaction of oxidation

In oxidation, electrons are released while in reduction, the electrons are gained. To make the ionic equation, we just add K⁺

So we sum both reactions

Br₂ + 2e⁻ + 2I⁻ +  2K⁺  ⇄  2e⁻  +  I₂  +  2Br⁻  + 2K⁺

We cancel the electrons on both sides of the equation:

Br₂ + 2I⁻ +  2K⁺  ⇄   I₂  +  2Br⁻  + 2K⁺

Answer:

2.54 L

Explanation:

Step 1: Write the balanced neutralization equation

6 HCl + Fe₂O₃ → 3 H₂O + 2 FeCl₃

Step 2: Calculate the moles corresponding to 339 g of Fe₂O₃

The molar mass of Fe₂O₃ is 159.69 g/mol.

339 g × 1 mol/159.69 g = 2.12 mol

Step 3: Calculate the moles of HCl that react with 2.12 moles of Fe₂O₃

The molar ratio of HCl to Fe₂O₃ is 6:1. The reacting moles of HCl are 6/1 × 2.12 mol = 12.7 mol

Step 4: Calculate the volume of HCl

12.7 moles are in 5.00 M (5.00 mol/L) HCl. The required volume is:

12.7 mol × 1 L/5.00 mol = 2.54 L

Answer:

A solution of sugar that contains the maximum amount of sugar that will dissolve is a saturated solution.

Explanation:

A saturated solution is a solution that contains as much solute as can dissolve in a given solvent at a given temperature.

for you the solute is sugar

Answer:

mixtures are physically combined structures that are separated into their original components. A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.

Explain:

yw

ask your mom and your family

Answer:

The energy level diagram is used to represent the energy states available in each atom. When an electron is in an energy state, it emits nor absorbs radiation. A photon is emitted or absorbed when an electron transitions from one energy state to another.

Explanation:

Answer: potassium and sodium have similar properties

Explanation: Na and K belong to alkali metals. Both have one electron in outer shell. Calcium has two electrons in outer shell.

Answer:

C???

Explanation:

Answer:

See explanation

Explanation:

In the voltaic cell, energy is produced by spontaneous chemical reaction. One half cell functions as the anode (in this case it is the Fe/Fe^2+ half cell) while the other half cell functions as the cathode (in this case it is the the Ag/Ag^+ half cell).

At the anode;

Fe(s) -----> Fe^2+(aq) + 2e

At the anode;

2Ag^+(aq) + 2e ------> 2 Ag(s)

Overall cell equation;

Fe(s) + 2Ag^+(aq)  ------> Fe^2+(aq) + 2 Ag(s)

Answer: if this is true or false, then this is false, something that is cold has slow moving particles, fast moving ones generate heat which will make it warm, this object has potential energy not kinetic.

Answer:

Sodium citrate is a compound with a total of 21 atoms

Answer:

[tex]m=397.6gC_8H_{18}}[/tex]

Explanation:

Hello there!

In this case, according to the given chemical reaction, we can set up the heat of reaction per mole of gasoline as shown below:

[tex]\Delta H=\frac{-10,990kJ}{2molC_8H_{18}}=-5495\frac{kJ}{molC_8H_{18}}[/tex]

Now, since the total heat is obtained by multiplying the moles and heat of reaction, we can calculate the moles as shown below:

[tex]n=\frac{Q}{-\Delta H } \\\\n=\frac{19,126kJ}{-(-5495\frac{kJ}{molC_8H_{18}} )} \\\\n=3.48molC_8H_{18}}[/tex]

Finally, since the molar mass of gasoline is 114.22 g/mol, we can easily calculate the mass as follows:

[tex]m=3.48molC_8H_{18}} *\frac{114.22gC_8H_{18} }{1molmolC_8H_{18}} } \\\\m=397.6gC_8H_{18}}[/tex]

Best regards!

Answer:

- Proper urine flow by signalling the kidney cells.

- They act as mechanoreceptors or sensory receptors.

Explanation:

Answer:

6605.3900 g/

Explanation:

The pH would be 3.16 because the formula for finding the pH from a H± ion is pH = -log [H±]

So with that formula, you first have to substitute the H± with your numbers which in this case is 6.9 × 10^-4.

It should like this:

pH = -log (6.9 × 10^-4)

And lastly, just calculate.

pH = 3.16

Hope that helps, do let me know if you need more help in understanding this!

Answer:

To solve this exercise you need to know that to create CO₂ with C₂H₂ is necessary to have oxygen. So, the following balanced equation represents the reaction:

2C₂H₂(g) + 5O₂(g) → 4CO₂(g) + 2H₂O(g)

Explanation:

Answer:

29% is the final concentration

Explanation:

To solve this question we must find the volume of ethanol added and the volume of the whole solution. The concentration will be:

Volume ethanol / Total volume * 100

Volume ethanol:

10mL * 70% = 7mL ethanol

+

20mL * 80% = 16mL ethanol

= 23mL ethanol

Total volume:

10mL + 20mL + 50mL = 80mL

Concentration:

23mL / 80mL * 100

= 29% is the final concentration

Answer:

An ignition coil can fail due to a high voltage puncture of its body, or an open primary or secondary winding. A few are killed by overheating when the control side of the primary side develops a short to ground. Something as simple as badly worn spark plugs will increase the demand from the coil, and eventually lead to failure.

But if I were to discuss the current leading cause of ignition coil replacement, I would have to say misdiagnosis and bad internet information. This is especially true of modern “coil on plug” systems. Often, the actual coil is fine, and the only damage is the replaceable spark plug boot.

I've seen countless examples of online “advice” to start with replacing all spark plugs and coils at the suggestion of any power loss or hiccup. Then the car owner purchases the cheapest set of coils that they can find. Not only is the initial problem still present , but they likely WILL have a future misfire due to poor quality parts selection. All misfires are not caused by coils and spark plugs.

Explanation:

Answer:

b is the best in my opion

Explanation:

Answer:

Kc = 0.5951 (4 sig. figs.)

Explanation:

For A + B ⇄ C + D at standard thermodynamic conditions (298K, 1atm)

ΔG = ΔG° + R·T·lnQ => 0 = ΔG° + R·T·lnKc => ΔG° = - R·T·lnKc

=> lnKc = - ΔG°/R·T

ΔG° = +12.86 Kj/mol

R = 8.314 Kj/mol·K

T = 298K

lnKc = - (+12.86Kj) / (8.314Kj/mol·K)(298K) = - 0.519 mol⁻¹

Kc = e⁻⁰°⁵¹⁹ mol⁻¹ = 0.5957 mol⁻¹ (4 sig. figs.)

Answer:

C. Solution B is less acidic than solution A.

Answer:

Think of it this way If you have a phosphorus atom whats its oposites once you found that out you may be able to find the answer

Explanation:

Hope this helps :)