Answers
Answer:
Try to figure it out U CAN DO THIS I BELIEVE
Explanation:
Related Questions
A gas that exerts a pressure of
15.6 psi in a container with a volume of
L will exert a pressure of
25.43 psi when transferred to a
container with a volume of 1.895 L.
Answers
Answer:
3.1L
Explanation: using Boyle's law p1v1=p2v2
p1=15.6,v1=?,p2=25.43,v2=1.895
manipulate the formula to favor so to find v1 the formula would be
p2v2/p1
25.43*1.895\15.6=3.1L
How many atoms are in an Apple
Answers
Answer:10^27 atoms in an apple
Explanation:
Use the References to access important values if needed for this question.
According to the following reaction, how many moles of sodium hydroxide will be formed upon the complete reaction of 0.263 moles
sodium with excess water?
2Na(s) + 2H, 0() 2NaOH(aq) + H2(g)
mol sodium hydroxide
Submit Answer
Retry Entire Group
2 more group attempts remaining
Answers
Answer:
0.263 mole of NaOH
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
2Na + 2H₂O —> 2NaOH + H₂
From the balanced equation above,
2 moles of Na reacted to produce 2 moles NaOH.
Finally, we shall determine the number of mole of NaOH produced by the reaction of 0.263 mole sodium, Na. This can be obtained as follow:
From the balanced equation above,
2 moles of Na reacted to produce 2 moles NaOH.
Therefore, 0.263 mole of Na will also react to produce 0.263 mole of NaOH.
Thus, 0.263 mole of NaOH was obtained from the reaction.
Complete the following reaction.
14
N+
7
C+ H
1
Answers
Answer: 23/10 n
Explanation:
How does the Sun get energy?
Answers
Answer:
Nuclear fushion
Explanation:
The sun generates energy from a process called nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons
water is a ----------- natural resources
Answers
Answer:
True
Explanation:
what are the main forces that operate between nonpolar molecules
Answers
Answer:
Van der Waals forces
Explanation:
Answer:
Dispersion
Explanation:
They said it was the answer.
The rate constant of a reaction is 6.4 × 10−3 s−1 at 25°C, and the activation energy is 33.6 kJ/mol. What is k at 75°C? Enter your answer in scientific notation.
Answers
Answer:
k₂ = 5 x 10⁻² s⁻¹
Explanation:
Using the Clausis - Clapyron Equation ...
ln(k₁/k₂) = ΔH/R(T₁-T₂/T₁·T₂) => lnk₂ = lnk₁ + ΔH/R(T₁-T₂/T₁·T₂)
k₁ = 6.4 x 10⁻³s⁻¹
ΔH = 33.6 Kj/mole
R = 0.008314 Kj/mol·K
T₁ = 25°C = 298K
T₂ = 75°C = 348K
lnk₂ = ln(6.4 x 10⁻³s⁻¹) + (33.6kj/mol·K/0.008314Kj/mol·K)·[(348K - 298K)/(348K)(298K)] = -3.10s⁻¹
k₂ at 75°C = exp(-3.10) = 5 x 10⁻²s⁻¹ (faster k-value at higher temp)
what energy is watching tv
1.thermal
2.sound
3.light
4.electrical
5.mechanical
Answers
Answer:
4. electrical
Explanation:
The answer is electrical let me know if it's right
An atom is to a molecule as
A.a nail is to a hammer
B. A brick is to a house
C. A house cat is to a lion
D. A sentence is to a word.
Answers
Answer:
it is B ^^ have a great day
Answer:
the correct answer is c a brick to a house
Explanation:
E
10N 20N 12N What is the net force?
Answers
Answer:42n
Explanation:
draw the structure of carbon and diamond
Answers
Answer:
hiiiiiiiiiiiiiiiiiiiiiiiiii
Can somebody please help me
Answers
Answer:
a) carboxylic acid
b) amine
c) ester
d) aldehyde
e) alkene
f) ketone
Explanation:
Most of them are straight forward.
When 1.04g of cyclopropane was burnt in excess oxygen in a bomb calorimeter, the temperature rose by 3.69K. The total heat capacity of the calorimeter and it's contents was 14.01kJ/K. Determine the enthalpy of combustion of cyclopropane.
Answers
Answer:
[tex]\Delta _{comb}H=-2,093\frac{kJ}{mol}[/tex]
Explanation:
Hello!
In this case, since these calorimetry problems are characterized by the fact that the calorimeter absorbs the heat released by the combustion of the substance, we can write:
[tex]Q_{rxn}+Q_{cal}=0[/tex]
Thus, given the temperature change and the total heat capacity, we obtain the following total heat of reaction:
[tex]Q_{rxn}=-14.01kJ/K*3.69K\\\\Q_{rxn}=-51.70kJ[/tex]
Now, by dividing by the moles in 1.04 g of cyclopropane (42.09 g/mol) we obtain the enthalpy of combustion of this fuel:
[tex]n=\frac{1.04g}{42.09g/mol}=0.0247mol\\\\\Delta _{comb}H=\frac{Q_{rxn}}{n}\\\\ \Delta _{comb}H=-2,093\frac{kJ}{mol}[/tex]
Best regards!
The enthalpy of combustion of cyclopropane is [tex]\Delta _c_o_m_b H= - 2.093 kJ/mol[/tex]
What is the enthalpy of combustion?
Enthalpy of combustion is the amount of heat produced when one mole of substance completely burns.
By the formula of calorimetry
[tex]Q_r_x_n + Q_c_a_l = 0[/tex]
The temperature change and total heat capacity is
[tex]Q_r_x_n = -14.01 KJ/K \times 3.69 K\\\\Q_r_x_n = -51.70 KJ[/tex]
Now, we get the enthalpy of combustion by dividing by the moles of 1.04 g of cyclopropane.
The number of moles is 42.09 g/mol.
[tex]n = \dfrac{1.4}{42.09} = 0.0247\\\\\Delta_c_o_m_bH =\dfrac{Q_r_x_n}{n} \\\\\Delta_c_o_m_bH = -2.093\; kJ/mol[/tex]
Thus, the enthalpy of combustion is -2.093 kJ/mol
Learn more about enthalpy of combustion
https://brainly.com/question/8261033
Please help me with this
Answers
Answer:
C
Explanation:
Protons and neutrons!
Have a great day :))))
Rank the following compounds in order of decreasing acid strength using periodic trends.Rank the acids from strongest to weakest. To rank items as equivalent, overlap them.
HI, HBr, MgH2, H2Se.
Answers
Explanation:
H2Se, HBr, MgH2, Hl
Because H2Se is stronger than Hl..
True or false. Compounds are two or more DIFFERENT elements.
A. True
B. False
Answers
Answer:
the answer is letter B,FALSE
What most likely accounts for the difference between curve A and curve B on
the energy diagram?
A. The reaction described by curve B is under greater pressure.
B. The reaction described by curve B is at a different temperature.
C. The reaction described by curve B has higher reactant
concentrations.
D. The reaction described by curve B is occurring with a catalyst.
Answers
Answer:
D
Explanation:
Ap3x
The accounts for the difference between curve A and curve B on the energy diagram is the reaction described by curve B is occurring with a catalyst. Therefore, option D is correct.
What is an energy diagram ?An energy profile is a theoretical representation of a chemical reaction or process as a single energetic pathway that transforms reactants into products.
The amount of relative potential energy in each step of a reaction is depicted by an energy diagram. Reactants, transition states, and products are typically depicted on energy diagrams. It may also include intermediates and activation energy, depending on the reaction.
An energy diagram depicts how an object's potential energy varies with position and provides information about the object's motion.The potential energy curve depicts the amount of potential energy that the boulder has at each position.
Thus, option D is correct.
To learn more about an energy diagram, follow the link;
https://brainly.com/question/15751837
#SPJ2
What type of energy is a motor
1.thermal
2.sound
3.light
4.electrical
5.mechanical
Answers
An element has 4 protons, 5 neutrons, and 4 electrons. What is the atomic mass of the
4,5,8,9
Answers
Answer:
Atomic mass formula is=neutron+proton
Answer is11
Explanation:
Atomic mass=proton+neutron
=4+5
=11
hope it helps u
please mark me brailliest
Which of the following chemical equations is balanced correctly?
Cl2 + NaI—> 2 NaCl + 12
B202 + 2C—>B4C +CO
C6H6 + 02–>2C02 + 3H20
CS2 + 3C12–>CCl4 +S2Cl2
Answers
ethyne gas is passed into ammonical silver nitrate solution?
Answers
Answer:
When acetylene gas is passed over ammoniacal silver nitrate soln gives white ppt of disilveracetylide is formed. - When acetylene is passed over ammoniacal silver nitrate solution, white ppt of disilveracetylide is formed.
Calculate the number of moles of solute in 27.55 mL of 0.1185 M K2Cr2O7(aq).
Answers
Answer:
0.01185M = moles/0.02755L
0.02755*0.01185=0.00032647
Explanation:
Why do convection currents matter in our lives today? How do they affect us?
Answers
Answer:
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth. These constantly circulating cells of hotter and cooler molten rock are thought to help heat the surface. Some geologists believe convection currents within the earth are a contributing cause of volcanoes, earthquakes, and continental drift.
Explanation:
What mass of carbon dioxide (CO2) is produced when 62.8g of methane (CH4) reacts with oxygen (O2)?
Answers
Answer:
Explanation:
Hello!
In this case, when methane is burnt in the presence of carbon dioxide, the following chemical reaction is carried out:
[tex]CH_4+2O_2\rightarrow CO_2+2H_2O[/tex]
Thus, since there is a 1:2 mole ratio between methane and oxygen, we set up the following mathematical expression to obtain the produced mass of carbon dioxide as a result of the reaction:
[tex]m_{CO_2}=62.8gCH_4*\frac{1molCH_4}{16.05gCH_4}*\frac{1molCO_2}{1molCH_4} *\frac{44.01gCO_2}{1molCO_2} \\\\m_{CO_2}=172.2gCO_2[/tex]
Best regards!
A sample of nitrogen gas has a temperature of 22.7oC when the volume of the container is 12.2L and it is under 150.4kPa of pressure. What temperature, in Kelvin, would the gas need to be in order to occupy a 9.7L container at 101.3kPa? Show all your work and round your answer to the hundredths place.
Answers
22.7 degrees Celsius = 22.7 + 273 = 295.7 K
[tex]\frac{(12.2)(150.4)}{295.7}=\frac{(9.7)(101.3)}{T_{2}} \\ \\ \frac{295.7}{(12.2)(150.4)}=\frac{T_{2}}{(9.7)(101.3)} \\ \\ T_{2}=\frac{(295.7)(9.7)(101.3)}{(12.2)(150.4)} \approx \boxed{158.35 \text{ K}}[/tex]
If 0.959J of heat is added to 0.88g of water, how much will its temperature increase
Answers
Answer:
0.260 Celsius
Explanation:
q =c x m x (T2-T1)
c - specific heat of water 4.186 J/g.C
T2-T1 = q /(c x m) = 0.959 /(4.186 x 0.88) = 0.959/3.68 =0.260 C
Name three active volcanoes
Answers
Answer:kiluea, Everest, Chaya. Oh
Explanation:
Explanation:
stomboli, mount erebus, and mount etna
3. Copper (1) phosphate reacts with lithium chromate in a double displacement
reaction, as shown in the unbalanced equation:
Cu3PO4 + Li Cro. → LisPOA + Cu,Cros
B) How many grams of lithium phosphate can be made from reacting 25.0 mL of
1.5 M lithium chromate with excess copper (D) phosphate?
C) How many mL of 0.5 M copper (1) chromate will be formed from 500 mL of
3.0 M copper (1) phosphate?
Answers
Calculate the molarity of a 17g sample of NaCl dissolved in H2O if the total solution is 700 mL.
Answers
0.29 mol / 0.700 L = 0.41 M NaCl