Answers
Answer:
D.
Explanation:
Related Questions
[This is the stem]
When 2 moles of Mg3N2 are allowed to react, how many moles of H20 also react?
Mg, Na(s) + 6H20(1)
3Mg(OH)2(s) + 2NH3(g)
1 mole
4 moles
6 moles
8 moles
12 moles
Answers
Answer:
12 moles of water (E)
Explanation:
The first step is to see that the equation is balanced. It is now, but you did something strange to the Mg3N2.
Mg3N2(s) + 6H20(l) ======> 3Mg(OH)2(s) + 2NH3(g)
What the equation is telling you is that 1 mol of Mg3N2 requires 6 moles of water for the reaction to occur.
So 2 mols of Mg3N2 would require 6*2 mols of water to react.
The answer is 12 moles of water
Vibrating molecules and atoms are an example of ___________________ energy, which falls into the ______________________ energy category.
Answers
How much heat will be transferred when 0.54g of sulfur reacts with 0.54g of oxygen to produce sulfur trioxide according to the following reaction:
2 S + 3 O2 =2 SO3 + 790kJ
Answers
Answer:
-4.4 kJ
Explanation:
Please help with #2 and #3
Answers
Answer:
2. [tex]V_2=17L[/tex]
3. [tex]V=82.9L[/tex]
Explanation:
Hello there!
2. In this case, we can evidence the problem by which volume and temperature are involved, so the Charles' law is applied to:
[tex]\frac{V_2}{T_2}=\frac{V_1}{T_1}[/tex]
Thus, considering the temperatures in kelvins and solving for the final volume, V2, we obtain:
[tex]V_2=\frac{V_1T_2}{T_1}[/tex]
Therefore, we plug in the given data to obtain:
[tex]V_2=\frac{18.2L(22+273)K}{(45+273)K} \\\\V_2=17L[/tex]
3. In this case, it is possible to realize that the 3.7 moles of neon gas are at 273 K and 1 atm according to the STP conditions; in such a way, considering the ideal gas law (PV=nRT), we can solve for the volume as shown below:
[tex]V=\frac{nRT}{P}[/tex]
Therefore, we plug in the data to obtain:
[tex]V=\frac{3.7mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1atm}\\\\V=82.9L[/tex]
Best regards!
What is the highest sublevel for the element Boron?
Answers
Answer:
2p
Explanation:
Boron is a member of group 13. The highest energy sub-level is usually found on the outermost shell of the atom of the element involved.
For a group 13 element, its outermost shell configuration is ns2 np1. The electronic configuration for boron is; 1s2 2s2 2p1.
Hence the highest energy sub-level in boron is 2p.
How does thermal energy flow as you hold a glass of ice water?
Answers
how many molecules are in 2NaO? please someone help i dont know this :')
Answers
Answer:
One molecule
Explanation
But there is three different atoms forming this one NaOH. The three atoms are Na, O and H, that is one sodium, one oxygen, and one hydrogen.
explain why there is an increase in successive ionization energy of fluorine?
Answers
Answer:
Successive ionization energies increase because for the same nuclear charge (positive pull of the nucleus) there are fewer electrons each time one is removed, thus more energy is required to remove successive electrons. ... Large increases in IE like this indicate changes in the main energy levels of the atom
Explanation:
~Hope this helps
Ametal used in hot water system?
Answers
Answer:
Nichrome
Answer: Hot water system coils are commonly made up of metal alloys which are a combination of two or more elements. The most commonly used metal alloy is “Nichrome”. Nichrome is an alloy of nickel (80%) and chromium (20%).
Hillsdale and Cordera are the same distance from the equator, and both are near the ocean. Is Cordera warmer, colder, or the same temperature as Hillsdale? Explain using wrods energy level, temperature, current
Answers
Answer:
Cordera is colder than Hillsdale.
Explanation:
They may be at a similar latitude. But you also have to consider the currents nearby the location.
The prevailing wind closer to the equator which carries warm current hits Hillsdale which is why it follows the coastline of the continent. However, for Cordera prevailing winds carrying cold currents hits the continent and follows or hits the coastline of Cordera.
ASAP please
What is the molarity of HCl in aqueous solution which contains 0.220 mole of HCl in 200ml solution? a. 1.5M b. 2.82M c. 3.09M d. 1.10M
Answers
0.220/0.2= 1.10 M
The molarity of HCl will be "1.10 M".
According to the question,
Moles of solute,
0.220 molesSolution,
200 ml or 0.2 lAs we know the formula,
→ [tex]Molarity = \frac{Moles \ of \ solute}{Liters \ of \ solution}[/tex]
By substituting the values, we get
→ [tex]= \frac{0.220}{0.2}[/tex]
→ [tex]= 1.10 \ M[/tex]
Thus the above approach i.e., "option d" is correct.
Learn more:
https://brainly.com/question/5950133
Calculate these mass of 0.520 moles
Answers
Answer:
5 is the perfect Ans for this
2. natakot, nabalisa, naginbal
Answers
Answer:
Saan yung tanong?? +?? ++?
Name the type of marked carbon
Answers
I hope this helps
How much volume will 8.8 moles of gas fill at 0.12 atm at 56*C
Answers
Answer:
2000 L
General Formulas and Concepts:
Atomic Structure
MolesTemperature Conversion: K = °C + 273.15Gas Laws
Ideal Gas Law: PV = nRT
P is pressureV is volume (in L)n is number of molesR is gas constantT is temperature (in K)Explanation:
Step 1: Define
[Given] 8.8 moles gas
[Given] 0.12 atm
[Given] 56 °C = 329.15 K
Step 2: Solve for V
Substitute in variables [Ideal Gas Law Formula]: [tex]\displaystyle (0.12 \ atm)V = (8.8 \ mol)(0.0821 \ \frac{L \cdot atm}{mol \cdot K})(329.15 \ K)[/tex]Isolate V: [tex]\displaystyle V = \frac{(8.8 \ mol)(0.0821 \ \frac{L \cdot atm}{mol \cdot K})(329.15 \ K)}{(0.12 \ atm)}[/tex]Multiply/Divide [Cancel out units]: [tex]\displaystyle V = 1981.7 \ L[/tex]Step 3: Check
Follow sig fig rules and round. We are given 2 sig figs.
1981.7 L ≈ 2000 L
Which statement best describes the flow of energy and the movement of
chemical compounds in an ecosystem? *
1 point
A. Energy flows into living organisms and remains there, while chemical compounds
are transferred from organism to organism.
B. Chemical compounds flow in one direction in a food chain and energy is produced.
C. Energy is transferred from organism to organism in a food chain and chemical
compounds are recycled.
D. Energy flows out of living organisms and is lost, while chemical compounds remain
permanently inside organisms.
Answers
Answer:
the answer is c
Energy is transferred from organisms in a food chain and chemical compounds are recycled
How many moles of Ca(NO3)2 are needed to make 1.50 L of a 6.00 molar solution?
Answers
Answer:
9.0 moles Ca(NO₃)₂
Explanation:
from definition of Molarity = moles of solute / volume of solution in liters
=> moles = Molarity x Volume(L) = 6.00 molar x 1.5 liters = 9.0 moles Ca(NO₃)₂
HELP PLEASE ILL GIBE BRANLIEST TO WHOEVER CAN SOLVE THIS WITH NO LINKS!!!!!! If 4.00 moles of a gas at a pressure of 5.40 atmospheres have a
volume of 120 liters, what is the temperature of this gas? (R = .0821
L. atm L. atm
K mol K.
komol)
F. 190 K
G. 234 K
H. 1973 K
J. 2280 K
C.9.A-R/C.2.G-P
Answers
Answer:
Option H
Explanation:
We can get the temperature of the gas by applying ideal gas law,
PV = nRT
Here, P = Pressure of the gas
V = Volume of the gas
n = Number of moles
R = Gas constant
T = Temperature
By substituting the values in the given equation,
5.40 × 120 = 4 × 0.0821 × T
648 = 0.3284T
T = [tex]\frac{648}{0.3284}[/tex]
T = 1973.20
≈ 1973 K
Therefore, temperature of the gas is 1973 °K
Option H will be the answer.
define combine gas law
Answers
Hopefully this helps you!
Answer:
The combined gas law combines the three gas laws: Boyle's Law, Charles' Law, and Gay-Lussac's Law. It states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant. When Avogadro's law is added to the combined gas law, the ideal gas law results.
Explanation:
Hope this helps
~Bre
Which type of radiation poses the fewest safety issues?
A. Beta
B. Gamma
C. Alpha
D. X-rays
Answers
Answer:
C. Alpha
Explanation:
I did it and I got it right
Answer: C. Alpha
Explanation:
The mass of evaporating dish
Answers
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
The mas.s of evaporating dish is 21.345g B.
ThanksHope it helpsWhat is the pH of sulfuric acid?
Answers
Explanation:
0.3,1.2, or 2.1. sorry if it's wrong.
Calculate and Convert (Due Tonight Please Help)
Answers
Sorry but I really need these points I just need 5 more sorrrryyy
i give brainliest
Describe the cause-and-effect relationship between light intensity and the seasons.
Answers
Answer: During winter the Northern Hemisphere leans away from the sun, there are fewer daylight hours and the sun hits us at an angle. This makes it appear lower in the sky. In equatorial regions the length of days and the directness of sunlight don't change as much.
Hope this helps :)
Consider the reaction described by the following chemical equation.
2 HN3(1) + 2 NO(g) — H2O2(1) + 4 N, (g)
What is the enthalpy change associated with the production of 1 mol of H, O, if a reaction that produces
2.50 g of H, O, releases 65.9 kJ of heat?
Answers
Answer:
Q = -897 kJ/mol
Explanation:
From the given information:
The heat released Q = -65.9 kJ
To start with the molar mass of [tex]H_2O_2[/tex] = 2 × (molar mass of H) + 2 × (molar mass of O)
= (2 × 1.008) + (2 × 16.0 )
= 34.016 g/mol
However, given that:
mass of [tex]H_2O_2[/tex] 2.50 g
The number of moles of [tex]H_2O_2[/tex] = [tex]\dfrac{mass}{molar \ mass}[/tex]
[tex]= \dfrac{2.5}{34.016}[/tex]
[tex]= 7.349 \times 10^{-2} \ mol[/tex]
Finally; Using the formula:
[tex]\Delta H = \dfrac{Q}{number \ of \ moles}\\ \\ Q = \dfrac{-65.9 \ kJ}{7.349 \times 10^{-2} \ mol}[/tex]
Q = -897 kJ/mol
Engineers find a new metal that is stronger than steel.. (so on)
Answer is : D "Collaborate with other engineers in the design of a plane made from this metal".
Answers
Answer:
Explanation:
same thing as normal plane. just replace normal metal with this new sick metal :cool:
also make sure it weighs a good amount and won't fall from weight... im confused was this already answered???
Answer:
Collaborate with other engineers in the design of a plane made from this metal
Explanation:
<3
How many grams of aluminum are needed to completely react with
192 g of oxygen gas?
Answers
Answer:
4.28g
Explanation:
Using spdf notation, what is the electron configuration for a neutral atom of beryllium
Answers
Answer:
Beryllium
Explanation:
A 0.200 L sample of neon gas is cooled at 270 K is cooled until the volume is 0.180 L. What is the new temperature?
NEEDED
Answers
Answer:
243 K.
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 0.2 L
Initial temperature (T₁) = 270 K
Final volume (V₂) = 0.18 L
Final temperature (T₂) =?
The final temperature of the gas can be obtained by using the Charles' law equation as illustrated below:
V₁ / T₁ = V₂ / T₂
0.2 / 270 = 0.18 / T₂
Cross multiply
0.2 × T₂ = 270 × 0.18
0.2 × T₂ = 48.6
Divide both side by 0.2
T₂ = 48.6 / 0.2
T₂ = 243 K
Thus, the final temperature of the gas is 243 K
As a rollercoaster travels upward what type of energy transfer is taking place?A.electrical to thermal energy B.kinetic to potential energy C.mechanical to chemical energy D.potential to kinetic energy
Answers
Answer:
B.
Explanation: