Materials that are good conductors of thermal energy are called thermal conductors. Metals are especially good thermal conductors because they have freely moving electrons that can transfer thermal energy quickly and easily
Answer:
Explanation:
Materials that are good conductors of thermal energy are called thermal conductors. Metals are especially good thermal conductors because they have freely moving electrons that can transfer thermal energy quickly and easily.1
Ca + AgCl (Single Replacement Reactions) PLEASE HELP
Answer:
2Ag + CaCl2
Explanation:
https://en.intl.chemicalaid.com/tools/equationbalancer.php?equation=Ca+%2B+AgCl+%3D+Ag+%2B+CaCl2 use that website for chemistry
A gas is heated from 263.0 K to 298.0 K and the volume is increased from 24.0 liters to 35.0 liters by moving a large piston within a cylinder. If the original pressure was 1.00 atm, what would the final pressure be?
Answer:
The final pressure is approximately 0.78 atm
Explanation:
The original temperature of the gas, T₁ = 263.0 K
The final temperature of the gas, T₂ = 298.0 K
The original volume of the gas, V₁ = 24.0 liters
The final volume of the gas, V₂ = 35.0 liters
The original pressure of the gas, P₁ = 1.00 atm
Let P₂ represent the final pressure, we get;
[tex]\dfrac{P_1 \cdot V_1}{T_1} = \dfrac{P_2 \cdot V_2}{T_2}[/tex]
[tex]P_2 = \dfrac{P_1 \cdot V_1 \cdot T_2}{T_1 \cdot V_2}[/tex]
[tex]P_2 = \dfrac{1 \times 24.0 \times 298}{263.0 \times 35.0} = 0.776969038566[/tex]
∴ The final pressure P₂ ≈ 0.78 atm.
What is the systematic name of the following compound?
CaF 2
15. If you dilute a 6 M solution of HCl from 5 mL to 50mL, what is the concentration of this new solution? (M1V1 = M2V2)
A) 1.6 M
B) 0.6 M
C) 8.6 M
D) 0.006 M
Answer:
B) 0.6M
Explanation:
I apologize in advance if it is not correct :l
The (M1V1= M2V2) is given for you to plug in the correct numbers so let's jot this down.
(M1*V1= M2*V2)
so they give us 6M which would be our (M1), from this we can also conclude that 5mL is also V1; ( if you notice the M1's and V1's are always found next to eachother). This leads us to our 50mL, this would be our V2 because the volume went from 5mL to 50mL. Now lets put this in order based on what we know.
M1= 6M (M1*V1= M2*V2)
V1= 5mL
M2= ?
V2= 50mL
now we plug in what we know into the equation to find the unknown (M2)
(6M*5mL= M2*50mL)
now we could do the long math, but I don't think your on brainly to do the hard way. so lets keep it simple!
We are going to put the 50mL under the (6M*5mL) for division.
[tex]\frac{(6M*5mL)}{(50mL)}[/tex] This is honestly MUCH easier, than manually answering. you just put that in the calculator and it'll give you B) 0.6M
honestly though I might not know what I'm doing cuz im currently doing my test and decided to answer this question ;)
Good Luck!
How many kJ are needed to heat 300.0 g of ice at -5.00°C into steam at 100.°C?
Answer:
Q = 63.9 kJ
Explanation:
Given that,
Mass of ice, m = 300 g
We need to find the heat needed to heat the given amount of ice at -5.00°C into steam at 100.°C
The specific heat of ice, c = 2.03 J/g °C
The formula for heat needed is given by :
[tex]Q=mc\Delta T\\\\Q=300\times 2.03\times (100-(-5))\\\\Q=63945\ J\\\\Q=63.9\ kJ[/tex]
So, 63.9 kJ of heat is needed.
Hello everyone, I got stumped by this question:
Do you agree or disagree with the claim, A change to any gas in the atmosphere affects energy absorbed by the surface in the same way.
a
agree
b
disagree
Could you help me figure this out?
Answer:b
Explanation:
Se tienen 1.5 litros de hipoclorito de sodio concrntrado (6.1%) y se requiere preparar 1.0 litros de hipoclorito de sodio al 0.5% URGE!!!!!! POR FAVOR
Answer:
Tomar 82 mL de solución concentrada y agregar agua hasta un volumen final de 1.0 L.
Explanation:
Tenemos una solución concentrada de hipoclorito de sodio, cuya concentración es 6.1%, por lo tanto:
Cc = 6.1 %
Y debemos hacer una dilucion para obtener una solucion diluida con:
Cd = 0.5%
Vd = 1.0 L
Por lo tanto, podemos usar la siguiente fórmula para calcular el volumen a tomar de solucion concentrada (Vc):
Cc x Vc = Cd x Vd
⇒ Vc = (Cd x Vd)/Cc = (0.5% x 1.0 L)/6.1% = 0.082 L
0.082 L x 1000 mL/1 L = 82 mL
Por lo tanto, para preparar la solución debemos tomar 82 mL de solucion concentrada de hipoclorito de sodio 6.1% y agregar agua hasta un volumen final de 1.0 L.
Which term identifies a type of intermolecular force?
A.
covalent bonding
B.
hydrogen bonding
C.
ionic bonding
D.
metallic bonding
Answer: B. Hydrogen Bonding
Explanation: I got it right on castle learning lol
There are different kinds of forces. The term that identifies a type of intermolecular force is hydrogen bonding.
The three known to be types of intermolecular interactions. They are
Dipole–dipole interactions London dispersion forces hydrogen bonds.
Hydrogen bonding is known to be an intermolecular force that takes place between two molecules. That molecule is known to have a hydrogen atom be bonded to a nitrogen, oxygen, or fluorine atom.
Learn more about Bond from
https://brainly.com/question/1420470
so2+o2 = so3 método de tanteo
Answer:
I dont understand
Explanation:
818191919
9.49.8 grams of Kl is dissolved in 1.00 kg of solvent. What is the molality?
Answer:
Molality = 9.498 mol k g − 1
Explanation:
A final way to express the concentration of a solution is by its molality. The molality ( m ) of a solution is the moles of solute divided by the kilograms of solvent. A solution that contains 1.0 mol of NaCl dissolved into 1.0 kg of water is a “one-molal” solution of sodium chloride.
molality = number of moles of solute/ mass of solvent in kg
number of moles of KI = mass of KI / molar mass of KI
number of moles of KI = 9.49.8 g / 1.00 g m o l − 1
number of moles of KI = 9.498 moles
molality = 9.498 moles / 1kg
molality = 9.498 mol k g − 1
What is the molarity of a solution where one mole of NaOH is added to 2000mL of water
Answer:
Molarity of a solution where one mole of NaOH is added to 2000mL of water is 0.0005
Explanation:
Molarity is the equal to number of moles of solute divided by total volume of solvent
Given -
Number of moles of solute i.e NaOH = 1
Total volume of solvent i.e water = 2000 mL
Molarity [tex]\frac{1}{2000} = 0.0005[/tex]
PLEASE HELP HELP ME. THIS IS DUE TODAY PLEASE
Answer:
B, C
Explanation:
Hope it helps i read it all
convert 5.0 moles NH3 to mass
Answer:
85 g
Explanation:
molar mass of NH3 = 17 (get individual atom mass from periodic table and add)
to convert moles to grams use dimensional analysis
(5 mol) x (17 g / 1 mol) basically just do 5 x 17
= 85 :)
Under similar conditions, which gas diffuses most rapidly through a small
opening?
a. Methane, CH4
b. Carbon dioxide
C. Sulfur dioxide
d. Oxygen
e. Chlorine
Answer:
e
Explanation:
a
Conclusion:
sports
Which 2 minerals can be scratched by a Diamond but NOT Quartz
Answer:
topaz and corundum
Explanation:
i know things
How does the CO2 level affect photosynthesis?
Answer:
Elevated [CO2] increases the availability of carbon in leaves causing greater Rubisco activity and higher rates of photosynthesis. Greater photosynthesis increases the content of non-structural carbohydrates in leaves which can lead to greater starch reserves and increased auxin biosynthesis.
Explanation:
Hope it helps
FOLLOW MY ACCOUNT PLS PLS
DOS MOVILES PARTEN A LAS 12:00 AL MISMO TIEMPO HACIA EL NORTE DEL PAIS .¿ QUE DISTANCIA LOS SEPARA A LAS 13 HORAS SUPONIENDO QUE SUS VELOCIDADES SON 20 M/S Y 50 K/H ?
Answer:
22km
Explanation:
Las velocidades de los móviles nos van a definir cuánta distancia recorren por unidad de tiempo. Para resolver este problema debemos hallar la distancia recorrida en una hora por cada vehículo (Porque de las 12 horas a las 13 solo hay una hora)
Un móvil está recorriendo 50km/h. En una hora recorrerá: 50km
El otro móvil recorre 20m/s. En km/h:
20m/s * (3600s / h) = 72000m/h * (1km / 1000m) = 72km/h. El móvil recorrerá, en una hora, 72km
1h = 3600s; 1km = 1000m
La distancia que los separa es de:
72km - 50km =
22km
How does a nuclear power plant create electricity?*
A: A nuclear reaction burns fuel
B: A nuclear reaction caused water to flow, which is then what creates electricity
C: A nuclear reaction creates heat which is applied to water to create steam
D: A nuclear reaction creates an electrical current
Answer:
CExplanation:
Answer:
hi jajsbbsjsmsksjsksksjsjdkkdkdndndnxjsjsksksksjsksmsnznnsnsnznsjsjshsjjajannananabababababajajajajajabananabbananajanabajajakmaka
I need help with this Asap. Best answer gets brainiest, also how is your day.
grams. Number only, rounded to the
One mole of silver weighs
hundredths place (.01) *Y
Answer:
107.87 grams
Explanation:
One mole of silver weighs 107.87 grams .
When writing the chemical formulas for a molecular compound, what method do you use?
Answer:
A molecular compound is usually composed of two or more nonmetal elements. Molecular compounds are named with the first element first and then the second element by using the stem of the element name plus the suffix -ide.
how many torr is 2.7 atm?
2.7 atm = ? torr
Answer:
2.7 atm = 2052 torr
I hope this helps you.
Answer:
2052 torr
Explanation:
Multiply 2.7 atm by the conversion factor to torr which is 760 torr = 1 atm
answer truthfully:))
Answer:
Formula: [tex]Velocity \: V = f \lambda \\ Solution: = 5 \times 0.8 \\ = 4 \: {ms}^{ - 1} [/tex]
Answer:
The first guy is correct. That's what I got too
When fluorine gas is put into contact with calcium metal at high temperatures, calcium fluoride powder is created in an exothermic reaction
Answer:
True,When fluorine gas is put into contact with calcium metal at high temperatures, calcium fluoride powder is created in an exothermic reaction.
What did Rutherford contribute to the model of the atom?
the neutron
the proton
the nucleus
the electron
Answer:
the nucleus
Explanation:
He proposed that the mass of an atom is concentrated in the nucleus which occupies a small volume in the center .He added that the nucleus comprises the protons and neutrons.where the neutron had no charge while the protons had charge of +1
Answer:
the nucleus
Explanation:
A process used to gain knowledge through observation and investigation is?
science
math
physics
energy
matter
Answer:matter
Explanation:
matter
make brain
. What is the molarity of 5.30 moles of NaCl dissolved in 0.400 L of solution?
Answer:
13.25 M
Explanation:
Molarity is moles over liters so simply plug your values in as such:
5.30 mol ÷ 0.400 L = 13.25 M
Bobby has a toy car that is sitting at rest on the floor. He decides to play with his toy car and pushes it with 3 newtons to the right. Bobby's friend Sam also decides to play with the toy car and pushes it with 6 newtons to the left at the exact same time. Which of the following best describes the resulting motion of the toy car? A It travels to the right at an increasing speed. B It travels to the right at a constant speed. C It travels to the left at an increasing speed. D It travels to the left at a constant speed.
Answer: D
Explanation:
The car will move to the left because Sam is implying a grater force (3 N < 6 N) but it is traveling at a constant speed because there is still a force being acted upon it. <3
The result of applying forces to a toy car is required.
Option D is correct.
Force applied by Bobby is 3 N to the right
Force applied by Sam is 6 N to the left
Right is taken as positive and left is taken as negative.
m = Mass of toy
a = Acceleration
Net force applied to the toy
[tex]F=3-6\\\Rightarrow F=-3\ \text{N}\\\Rightarrow ma=-3\\\Rightarrow a=\dfrac{-3}{m}[/tex]
So, the toy will move left with a constant acceleration.
Constant acceleration means its speed will be increasing.
So, option D is correct.
Learn more:
https://brainly.com/question/18373733?referrer=searchResults
A(n)
Is the explanation of phenomena through the use of several Investigations or a scientific method.
O hypothesis
O scientific theory
O scientific law
I am researching something and I need your (Brainly's) opinion
Based on your opinion, Do you think social media is bad? you don't have to but tell me why
Answer:
I think it could be bad for some people because children could be exposed to toxic content. Without parent restrictions there could be some serious harm. Another reason, is that being on social media could distract kids from homework, chores, etc. (There is also scams and fake advertising)
I personally deleted a lot of my social media acc’s last year cause of me getting stressed and sad over it, but for now I’m pretty good I’m making friends off it having lots of fun
