Please help! Will give brainiest for best answer! Please Explain how you got there as well. Thanks.
1. a) Write the word equation for the reaction of barium nitride with potassium.
2. b) Write the balanced formula equation for this reaction.
3. c) If 21.0 g of potassium reacts with 62.5 g of barium nitride, what mass of potassium nitride will
be produced?
4. d) Identify which reactant is the limiting reactant and which is the excess reactant.
5. e) How many grams of the excess reactant reacts and how many grams are left over?

Answer:

I THINK IT IS TRUE  BECAUSE THEY ERE FIRST FOUND TO DEMOCRITUS ARISTOTLE AND PLATO THE ROMANS AND GREEK CHEMISTS .

Explanation:

Answer:6CO2/1C6H12O6

Explanation:

Answer:

I'd say ALL OF THE ABOVE.

A Mechanical wave is a disturbance that transfers energy as it moves through a medium without displacement of the medium itself.

It can Either be Transversal or Longitudinal.

It is Transversal when the particles of the medium move perpendicular to the wave motion.

It requires a medium and begin at a source with a disturbance

So

ALL THE OPTIONS SEEM LEGIT.

Answer:

2, 8, 10, 2

Explanation:

Answer:

2, 8, 10, 2

Explanation: Titanium/Electrons per shell

Answer:

A substance that produces hydrogen gas when dissolved

Answer:

O homogeneous mixture

Explanation:

When Kci is dissolved in water it becomes a solute in O homogeneous mixture

Answer:

3.033

Explanation:

67.94/22.4= 3.033

I hope lol

Answer: Resonance

Explanation:

A resonance is said to occur when an object experiences a frequency that is equal to its natural frequency.

A resonance refers to the sound that's produced by an object when the object vibrates at an identical rate as the sound waves that is coming from another object.

Therefore, the correct option is C

Answer:answer in explanation try to understand dear

Explanation:Air pollutants have a negative impact on plant growth, primarily through interfering with resource accumulation. Once leaves are in close contact with the atmosphere, many air pollutants, such as O3 and NOx, affect the metabolic function of the leaves and interfere with net carbon fixation by the plant canopy.

Answer:

Mg + 2 HCl ⇒ MgCl₂ + H₂

10.1 L

Explanation:

Step 1: Write the balanced equation

Mg + 2 HCl ⇒ MgCl₂ + H₂

Step 2: Calculate the moles corresponding to 10.0 g of Mg

The molar mass of Mg is 24.31 g/mol.

10.0 g × 1 mol/24.31 g = 0.411 mol

Step 3: Calculate the moles of H₂ produced from 0.411 moles of Mg

The molar ratio of Mg to H₂ is 1:1. The moles of H₂ produced are 1/1 × 0.411 mol = 0.411 mol

Step 4: Calculate the volume occupied by 0.411 moles of H₂

0.411 moles of H₂ are at 1.00 atm and 25 °C (298 K). We can calculate the volume occupied using the ideal gas equation.

P × V = n × R × T

V = n × R × T / P

V = 0.411 mol × (0.0821 atm.L/mol.K) × 298 K / 1.00 atm = 10.1 L

Answer:

Kind of like DNA or a part of DNA

Explanation:

They are what make you a person, no they aren't the same

Answer:

The De Broglie hypothesis proposes that all matter exhibits wave-like properties and relates the observed wavelength of matter to its momentum. After Albert Einstein's photon theory became accepted, the question became whether this was true only for light or whether material objects also exhibited wave-like behavior.

Answer:

The chemical symbol will be "[tex]_{29}^{63.5}\textrm{Cu}[/tex]".

Explanation:

The given values are:

Current,

I = 2.50 amps

Time,

t = 2 hr

or,

 = 7200 sec

Metal deposited,

W = 5.93 gm

As we know,

⇒  [tex]W=Z\times i\times t[/tex]

or,

⇒  [tex]Z=\frac{W}{i\times t}[/tex]

On putting the given values, we get

⇒      [tex]=\frac{5.93}{2.5\times 7200}[/tex]

⇒      [tex]=3.2945\times 10^{-4}[/tex]

hence,

⇒ [tex]Atomic \ mass=Z\times electrons\times 96500[/tex]

⇒                       [tex]=3.2945\times 10^{-4}\times 2\times 96500[/tex]

⇒                       [tex]=63.5[/tex]

Thus the above is the right answer.

Answer:

C. 2Fe + 3Cl2 + 2FeCl3

Explanation:

Hello there!

In this case, according to the given chemical reaction:

Fe + Cl2 → FeCl3

It turns out possible to balance it via cross-multiplying the chlorine atoms as they do not result from a whole number multiplication; it means we get:

Fe + 3Cl2 → 2FeCl3

And we just balance Fe by placing a 2 on Fe:

2Fe + 3Cl2 → 2FeCl3

Thus, the answer is C. 2Fe + 3Cl2 + 2FeCl3  

Regards!

Answer:

7.94x10⁻⁸ M

Explanation:

Using the pH given by the problem, we can calculate the pOH of the blood plasma:

Then we can proceed to calculate the [OH⁻] of the blood plasma, using the definition of pOH:

TT with Tt

or TT with TT

would give a tall plant

Answer:

Bromine loses an electron.

Explanation:

Hello there!

In this case, according to the given chemical reaction, it will be possible for us to realize that as the reaction progresses, we see that the bromine, as it is initially negative, it increases the oxidation state as it loses an electron for which it is oxidized.

Moreover, no change is potassium is evidenced as it remains as the cation in the reaction; therefore, the answer is Bromine loses an electron.

Regards!

Answer:

The above answer is correct

Explanation:

I took the test

Answer: The value of [tex]\Delta G_{rxn}[/tex] for given equation is 119.096 kJ.

Explanation:

Given: [tex]\Delta H = 163.2 kJ[/tex] (1 kJ = 1000 J) = 163200 J

[tex]\Delta S = -148 J/K[/tex]

T = 298 K

Formula used to calculate [tex]\Delta G_{rxn}[/tex] is as follows.

[tex]\Delta G_{rxn} = \Delta H - T \Delta S[/tex]

Substitute the values into above formula as follows.

[tex]\Delta G_{rxn} = \Delta H - T \Delta S\\= 163200 J - (298 \times -148 J/K)\\= 163200 J - 44104 J\\= 119096 J \\= 119.096 kJ[/tex]

Thus, we can conclude that the value of [tex]\Delta G_{rxn}[/tex] for given equation is 119.096 kJ.

Answer:

207

No, it is nonspontaneous at all temperatures

Explanation:

This is like 8 months later so im just putting this for people that need it still.

Answer:

Explanation:

a) 3.00 mol Cu x 2 mol Ag/ 1 mol Cu = 6 mol Ag

b) 3.00 mol Cu x 2 mol Ag/1 mol Cu x 107.87g Ag/ 1 mol Ag = 647.22g Ag

c) 3.00 mol Cu x 1 mol Cu(NO3)2/ 1 mol Cu = 3 mol Cu(NO3)2

d) 3.00 mol Cu x 1 mol Cu(NO3)2/ 1 mol Cu x 187.54g/ 1 mol Cu(NO3)2 =562.644g Cu(NO3)2

Answer:

The answer would be charged particles.

Explanation:

Electric force exists as one of the most fundamental forces in the universe, it occurs between all charged particles.

Answer:

13 mol NO

Explanation:

Step 1: Write the balanced equation

4 NH₃(g) + 5 O₂(g) ⇒ 4 NO(g) + 6 H₂O(g)

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of O₂ to NO is 5:4.

Step 3: Calculate the number of moles of O₂ needed to produce 16 moles of NO

We will use the previously established molar ratio.

16 mol O₂ × 4 mol NO/5 mol O₂ = 13 mol NO

Answer:

50/400 × 100/1

0.125 × 100

= 12.5%

Answer:

the error could have been the fact that the unit for volume wasn't changed from cm³ to dm³

hence the calculation error

the solution to this would be first dividing the volume by 1000 to get that same amount in dm³ which is the standard unit to be used for volume-density calculations

Answer:

geyser shoots out hot water everyday

Answer:

hi the ans is A.

..............

Answer:

A

Explanation:

A triglyceride (TG, triacylglycerol, TAG, or triacylglyceride) is an ester derived from glycerol and three fatty acids (from tri- and glyceride). Triglycerides are the main constituents of body fat in humans and other vertebrates, as well as vegetable fat.

The structure of option A shows a triglyceride.

Triglycerides are a kind of fat present in the blood. Triglycerides are the types of stored fats, which are not in use currently.

The structure of triglyceride is TRI esters containing glycerol bound to three fatty acid molecules.

Thus, the correct option is A.

Learn more about triglyceride

https://brainly.com/question/13840067

#SPJ2

2K(s) + F₂(g) --> 2KF(s)

The physical stare of potassium is solid(s) and that of potassium fluoride is solid(s) so, s will be put on both the blanks.

Now, In order to balance florine, we will put 2 for potassium floride, afterwards florone will be 2 on both side of equation but now potasium will become unbalnced so, we will put 2 for potassium. Thus, both sides of the equation will be balanced.

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P.S- Sorry, If I fail in properly explaining it to you.

We are given:

Initial Temperature = 90°c

Final Temperature = 120°c

Heat applied(ΔH) = 500 Joules

Specific heat(c) = 0.9 Joules / g°C

Mass of Aluminium(m) = ?

Change in temperature:

ΔT = Final temp. - Inital Temp.

ΔT = 120 - 90

ΔT = 30°c

Calculating the mass:

We know the formula:

ΔH = mcΔT

replacing the values:

500 = m(0.9)(30)

500 = m(27)

m = 500/27

m = 18.52 grams

Answer:

Bottle B has a higher temperature than Bottle A.

Explanation:

We have to consider something very important here and that is the ability of the molecules of CO2 and those of air to trap heat.

CO2 molecules are better able to trap heat since it is among the green house gases.

Since CO2 is a greenhouse gas, the temperature of bottle B is higher than that of bottle A because more heat is trapped by the gas in bottle B than the gas in bottle A.