Can anyone help? The instructions are in bold.
Answer:rarrrrrrr
Explanation:
Calculate the wavelength of microwaves that have a frequency of 5.67 x 10¹¹ Hz. Please give your answer in scientific notation to the hundredths place. (Don't forget unit!) *
A gas occupies 11.2 liters at 0.860 atm. What is the pressure if the volume becomes 15.0 L? (Boyle)
Answer:
0.642 atmExplanation:
The new pressure can be found by using the formula for Boyle's law which is
[tex]P_1V_1 = P_2V_2[/tex]
Since we are finding the new pressure
[tex]P_2 = \frac{P_1V_1}{V_2} \\[/tex]
From the question we have
[tex]P_2 = \frac{11.2 \times 0.86}{15} = \frac{9.632}{15} \\ = 0.64213333...[/tex]
We have the final answer as
0.642 atmHope this helps you
Given:
Initial Volume [tex] \sf (V_1) [/tex] = 11.2 L
Initial Pressure [tex] \sf (P_1) [/tex] = 0.860 atm
Final Volume [tex] \sf (V_2) [/tex] = 15.0 L
To Find:
Final Pressure [tex] \sf (P_2) [/tex]
Concept/Theory:
[tex] \bf{ \underline{Boyle's \: Law} \: (Pressure - Volume \: Relationship)}[/tex]
"At constant temperature, the pressure of a fixed amount of gas varies inversely with the volume of the gas."
[tex] \bf{P \propto \dfrac{1}{V} \: (at \: constant \: T \: and \: n)}[/tex]
It can be also stated as "At constant temperature, the product of pressure and volume of fixed amount of a gas remains constant."
[tex] \bf{PV = Constant}[/tex]
If the initial pressure and volume of a fixed amount of gas at constant temperature are [tex] \sf (P_1) [/tex] & [tex] \sf (V_1) [/tex] and final pressure of the gas is [tex] \sf (P_2) [/tex] and volume occupied is [tex] \sf (V_2) [/tex], then according to Boyle's law;
[tex] \bf{P_1V_1 = P_2V_2 = Constant}[/tex]
OR
[tex] \bf{\dfrac{P_1}{P_2} = \dfrac{V_2}{V_1}}[/tex]
Answer:
By using Boyle's Law, we get:
[tex] \rm \longrightarrow \dfrac{0.860}{P_2} = \dfrac{15.0}{11.2} \\ \\ \rm \longrightarrow P_2 = \dfrac{11.2}{15.0} \times 0.860 \\ \\ \rm \longrightarrow P_2 = \dfrac{9.632}{15.0} \\ \\ \rm \longrightarrow P_2 = 0.642 \: atm[/tex]
[tex] \therefore [/tex] Final Pressure [tex] \sf (P_2) [/tex] = 0.642 atm
Adaptations can only arise if
there is _______ within a species.
Answer:
Diversity?
Explanation:
Think thats bio
why water can be consider as an acid as well as base .explain briefly
When two balls collide, the momentum of the balls after the collision is explained by?
Answer:
(m1+m2)v
Explanation:
where m1 is the mass of the first body
m2 is the mass of the second body
v is the velocity
how does sodium become an ion
Answer:
Sodium is an alkali metal so it needs to lose an electron to fill it's outer shell.
That is an ion. When an element loses or gains an electron but in this case, sodium needs to lose an electron.
Calculate the percent composition of chlorine in methyl trichloride, CHCl3.
Answer:
Chlorine --> 89%
Explanation:
Step 1) Add each element's amu up to get the total mass of the compound.
12.011+1.008+3(35.453) = 119.378.
Step 2) Divide the total mass of chlorine by the total mass of the compound.
3(35.453) = 106.359
106.359/119.378 = 0.8909430548.
Step 3) Now multiply by 100 to get the percentage.
0.8909430548*100 = 89.09430548%
Step 4) Estimate and submit your answer
89.09430548% estimates to 89%
When you connect your evidence to your claim you are using your
1. brain
2.reasoning
3. test
Answer:
2. reasoning
Explanation:
PLS GIVE BRAINLIEST
How many mL of ethanol would you
add to water to make 1750 mL of a
40.0% ethanol solution (v/v%)?
Answer:
700 mL of ethanol would be added
Explanation:
Given data:
Volume of ethanol added to make 40% v/v solution = ?
Total volume of solution = 1750 mL
Solution:
We will calculate the 40% 1750 mL which will be the volume of ethanol added to the water to make 40%v/v solution.
(40/100)× 1750 mL
0.4 × 1750 mL
700 mL
700 mL of ethanol would be added.
Which of the following are subatomic particles that orbit the outside of an atom?
A.
molecules
B.
electrons
C.
neutrons
D.
protons
In each case, state whether the forces are balanced or unbalanced. If unbalanced, calculate the net force and describe the direction of the resultant force.
Answer:
Check explanation section.
Explanation:
In order to understand balanced force and unbalanced forces the first law of Newton should be considered as a basic knowledge.
For Balanced forces, there is equal equality in the direction of the forces. In balanced forces, there is no acceleration.
For unbalanced forces, there is acceleration that is go say there is going to be movement. Therefore, net force is equal to unbalanced forces.
(i) Suitcase dropped from a height.
Answer: since there is movement that is acceleration, then the force here is unbalanced force. The resultant force is downwards.towards the greater force direction.
(ii) A bicycle moving with constant velocity on a straight road.
Answer: As the bicycle moves at constant velocity on the straight road the force here is Balanced. Frictional forces balances the forces from the cyclist.
(iii) The rope does not move in a tug of war on applying force at both ends.
Answer: Balanced force.
What coefficient well O2 have after balancing this equation
C4H8 + O2 -> CO2 + H2O
A. 4
B. 8
C. 6
D. 2.5
The coefficient for O₂ after balancing the equation is 4. The correct answer is A. 4.
To balance the equation C₄H₈ + O₂ → 4CO₂ + 4H₂O, we need to ensure that the number of each type of atom is the same on both sides of the equation.
Starting with carbon (C), we have 4 carbon atoms on the left side and only 1 on the right side (in CO₂). To balance carbon, we place a coefficient of 4 in front of CO₂:
C₄H₈ + O₂ → 4CO₂ + H₂O
Next, we move on to hydrogen (H). There are 8 hydrogen atoms on the left side, but only 2 on the right side (in H₂O). To balance hydrogen, we place a coefficient of 4 in front of H₂O:
C₄H₈ + O₂ → 4CO₂ + 4H₂O
Now, let's consider oxygen (O). On the left side, we have O₂, which contains 2 oxygen atoms. On the right side, there are 4 CO₂ molecules, each containing 2 oxygen atoms, and 4 H₂O molecules, each containing 1 oxygen atom. So, the total number of oxygen atoms on the right side is (4 x 2) + (4 x 1) = 8.
To balance oxygen, we need to have 8 oxygen atoms on the left side as well. Therefore, we place a coefficient of 4 in front of O₂:
C₄H₈ + 4O₂ → 4CO₂ + 4H₂O
Therefore, the coefficient for O₂ after balancing the equation is 4.
The correct answer is A. 4.
Learn more about coefficient from the link given below.
https://brainly.com/question/13431100
#SPJ2
Which of the following can best be described as speed plus direction?A: AccelerationB: DecelerationC: FrictionD: Velocity
Answer:
D
Explanation:
Because speed is a scalar quantity which he has only magnitude and no direction while velocity is a vector quantity because it has both magnitude and direction.
Question 107 points)
(02.04 HC
Use examples to explain how the atmosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete
sentences. (7 points)
Answer:
Evaporation from the hydrosphere provides the medium for cloud and rain formation in the atmosphere. The atmosphere brings back rainwater to the hydrosphere. The atmosphere provides the geosphere with heat and energy needed for rock breakdown and erosion. The geosphere, in turn, reflects the sun's energy back into the atmosphere.
Explanation:
A natural resource that is replaceable through a cycle in nature or sustainable practice is called a ______________.
Answer:
renewable recource.
Explanation:
Which of the following elements would you expect to be ductile and
malleable?
Germanium (Ge)
Argon (Ar)
O O O O
Nitrogen (N)
O Zirconium (Zr)
Answer:
ductile - germanium
mellabe - zirconium
please help! An ice cube (25 g) is removed from a freezer at 0 °C. How much energy is required to completely melt the ice cube?
Answer:
So it takes 80 calories of heat to melt 1 g of an ice cube, now do the math. (Hope this helped)
Explanation:
.) 1. The Lewis valence dot electron structures are used to illustrate the number of valence electrons of atoms of representative elements. Considering this, use the Periodic Table to predict the number of "dots" that should be drawn around Antimony (Sb) to represent its Lewis Dot Structure.
Answer:
put 5 dots
Explanation:
it has 5 valence electrons
Answer:
5
Explanation:
Antimony is in group 15 of the periodic table which means it has 5 valence electrons. Therefore, its Lewis Diagram should contain 5 dots to represent these 5 valence electrons.
Hope this helped!
Write the type of each chemical reaction
1. Double Displacement
2.Double Displacement
3. Single Displacement
4. Decomposition
5. Synthesis
6. Combustion
A car is traveling with velocity of 40 m/s and has a mass of 1120 kg. The car has __________ energy.
A. Kinetic
B. Potential
Answer:
A.
Explanation:
The car has kinetic energy.
Pls help will give Brainlist
If a sealed 3.0L container has a pressure of 1.0 atm at 20.0 C and is heated to a temperature of 450. K. What is the pressure inside of the container at this temperature?
The pressure : 1.536 atm
Further explanationSame container=same volume⇒the volume is constant
Gay Lussac's Law
When the volume is not changed, the gas pressure in the tube is proportional to its absolute temperature
[tex]\tt \dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}[/tex]
P₁=1 atm
T₁=20+273=293 K
T₂=450 K
the pressure :
[tex]\tt P_2=\dfrac{P_1.T_2}{T_1}\\\\P_2=\dfrac{1\times 450}{293}=\boxed{\bold{1.536~atm}}[/tex]
DESPERATE WILL GIVE BRAILIST AND THANKXS
Which statement is true about a rock layer deposited on top of another rock layer?
A- It is younger than the rock layer below.
B- It is older than the rock layer below.
C- It is the same age as the rock layer below.
D- It is no different than the rock layer below
Hello there!
Your answer is C.
Answer:
The right option is; A. It is younger than the rock layer below.
Explanation:
A rock layer deposited on top of another rock layer is younger than the rock layer below. This is based on the law of superposition which states that in any undeformed sequence of rocks that are laid down in layers, the youngest layer of rock will be on top of the sequence, while the oldest layer will be at the bottom of the sequence.
PLEASE HELP I'M DOING THIS IN CLASS RIGHT NOW
Explain exactly why metals are such good conductors according to the video you just watched. 2. Which conducts heat more efficiently- a solid, liquid or gas? Why is that (explain on molecular level)?
Answer:
hope this helps have a amazing day! :)
Explanation:
Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions.
How many moles of acetaminophen are in a 0.8mL (0.0008L) dose of infants Tylenol
Answer:
0.007 mol
Explanation:
Step 1: Given data
Volume of acetaminophen: 0.8 mL
Step 2: Calculate the mass corresponding to 0.8 mL of acetaminophen
The density of acetaminophen is 1.26 g/mL.
0.8 mL × (1.26 g/mL) = 1 g
Step 3: Calculate the number of moles corresponding to 1 g of acetaminophen
The molar mass of acetaminophen is 151.16 g/mol.
1 g × (1 mol/151.16 g) = 0.007 mol
Carbon dioxide and ____ are outputs of cellular respiration
Answer:
oxygen
Explanation:
plants use oxygen
PLEASE HELPP!!!!
10. Using a Periodic Table, complete the chart below. Then, use the simulation to check your
answers by clicking on the appropriate elements to make each compound.
Answer:
Na the valency electrons is 1
The ion charge is positive 1
K the valency electrons is 1
The ion charge is positive 1
Explanation:
Mg the valency electron is 2 The ion charge is positive 2
Ca the valency electron is 2 The ion charge is positive 2
Al the valency electron is 3 The ion charge is positive 3
O the valency electron is 2 The ion charge
is negative 2
F the valency electron is 1 The ion charge is negative 1
Cl the valency electron is 1 The ion charge
is negative 1
N the valency electron is 3 The ion charge is negative 3
S the valency electron is 2 The ion charge is
negative 2
Na the valency electrons is 1, The ion charge is positive 1 and K the valency electrons is 1, The ion charge is positive 1.
What is Valency?Mg the valency electron is 2 The ion charge is positive 2, Ca the valency electron is 2 The ion charge is positive 2 and Al the valency electron is 3 The ion charge is positive 3.
O the valency electron is 2 The ion charge, is negative 2 and F the valency electron is 1 The ion charge is negative 1, Cl the valency electron is 1 The ion charge is negative 1
N the valency electron is 3 The ion charge is negative 3, S the valency electron is 2 The ion charge is negative 2.
Therefore, Na the valency electrons is 1, The ion charge is positive 1 and K the valency electrons is 1, The ion charge is positive 1.
To learn more about valency, refer to the link:
https://brainly.com/question/12744547
#SPJ2
What is the smallest substance? molecule mixture compound
Answer:
Molecule is the smallest i took the quiz and it was that!
Explanation:
Hope I helped! :>
A train travels 846 miles in 9 hours. What is the average speed of the train?
Answer:
The answer is 94 miles an hour.
Explanation:
Speed equals distance divided by the time taken to cover that distance. So to find the average speed of the train just divide the distance covered (846 miles) by the time taken by the train to cover that distance (9 hours) and that equals 846/9 equals 94 miles in one hour.
7. Which of the following is always true when a substance undergoes a
phase change? *
O A. The molecules keep moving at the same average speed.
B. The substance becomes a liquid as it heats up.
C. The melting point of the substance changes.
D. The substance is made up of the same type of molecules.
The following answered has been deleted due to multiple violations to our Terms of Service.