Answer: The given statement is True.
Explanation:
The heat will move from hotter object to the cooler object in search of thermal equilibrium. Heat transfer will only stop when both the bodies are at the same temperature.
Heat transfer can be done using conduction , convection or radiation.
The statement that Heat transfer is the movement of heat from a hotter object to a cooler object is True.
what is the meaning of a mixture
Answer:
a substance made by mixing other substances together.
Given the following equation: CH4 + 202 CO2 + 2H2O
How many grams of CH4 are needed to react with 3.2 grams of O2?
Answer:
Mass = 0.8 g
Explanation:
Given data:
Mass of oxygen = 3.2 g
Mass of CH₄ = ?
Solution:
Chemical equation:
CH₄ + 2O₂ → CO₂ + 2H₂O
Number of moles of O₂:
Number of moles = mass/molar mass
Number of moles = 3.2 g/ 32 g/mol
Number of moles = 0.1 mol
Now we will compare the moles of CH₄ and O₂.
O₂ : CH₄
2 : 1
0.1 : 1/2 = 0.1 = 0.05
Mass of CH₄:
Mass = number of moles × molar mass
Mass = 0.05 mol × 16 g/mol
Mass = 0.8 g
Answer:
0.8
Explanation:
Chunga
What is the molar mass C₆H₁₂O₆
Answer:
molar mass= 180
Explanation:
molar mass = (6×12) + (12×1) + (6×16) = 180
How many molecules are there in 4372 grams of Na2SO4?
Answer: 30.7 moles
Explanation:
What is the mass of oxygen in 240.0 grams of water?
Answer:
jvjckv
Explanation:
vjch jhoccixtzrzizfzirz
zinc + sulfuric acid → ..........+ hydrogen
Iron+ ....... iron chloride + ......
.......+ hydrochloric acid → zinc chloride +.......
C9H20 + O2 → CO2 + H2O
4 Elliot has some stearic acid. It is in the solid state.
a Describe how Elliot could use the apparatus below to measure the melting point of his
stearic acid.
Answer:
it is in solid state
Explanation:
at 100% heat
At regular intervals, check the stearic acid's temperature. Make a note of the findings and create a temperature vs time graph.
What is Temperature?The physical concept of temperature indicates in numerical form how hot or cold something is. A thermometer is used to determine temperature. Thermometers are calibrated using a variety of temperature scales, which historically defined distinct reference points and thermometric substances.
For above given example, check the temperature of the stearic acid often and make a note of the results and plot the temperature against time.
Temperature is not the same as the energy of a thermodynamic system; for instance, an iceberg has a significantly larger total heat energy than a match, despite the fact that a match is burning at a much higher temperature.
Thus, at regular intervals, check the stearic acid's temperature. Make a note of the findings and create a temperature vs time graph.
Learn more about Temperature, here:
https://brainly.com/question/7510619
#SPJ3
A satellite and a hockey puck are alike because they illustrate Newton's first law of motion.
True
False
Answer:
It would be True
Explanation:
Because they both have the same push of gravity. Gravity affects all objects equally. If you drop an egg and a watermelon at the same time they would both collide with the floor at the same time.
For the equation SnO2 + 2H2 Sn + 2H2O, tin (IV) oxide reacts with excess hydrogen to produce tin and water. What is the limiting reactant?
A) SnO2
B) H2
C) Sn
D) H2O
Answer:
SnO2
Explanation:
The limiting reactant is the reactant that runs out first during a chemical reaction.
Reactants are on the left side of the reaction, so SnO2 and H2. They tell us in the question that there is "excess" hydrogen (H2), so we know there is plenty of it, as "excess" means "more than enough." If we have more than enough hydrogen, then we know that we will run out of SnO2 first.
:)
Answer:SnO2
Explanation:
what do we call the liquid that the solid Is being added to?
Answer:
When a solid dissolves the solid and the liquid they form a mixture called a solution.
The law of conservation of energy states that
Answer:
Explanation:
The law of conservation of energy states that that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.
PLEASE ANSWER QUICKLY ASAP
READ QUESTIONS CAREFULLY
Answer:
45/9 or 5
Explanation:
the oil which relative amount is greater than demand is fuel oil, whose fraction is 45/9
To draw a Lewis structure for an atom, one must know ____
To draw a Lewis structure for an atom, one must know number of valence electrons. A Lewis structure is indeed a diagram that depicts a molecule's covalent bonds as well as lone electron pairs.
What is Lewis structure?Lewis electron dot structures, Lewis structure diagrams, as well as electron dot structures are all names for Lewis structures. All of these terms relate to the same type of diagram, that is used to represent the position of bonds including electron pairs.
A Lewis structure is indeed a diagram that depicts a molecule's covalent bonds as well as lone electron pairs. The octet rule underpins Lewis structures. While Lewis structures were valuable for illustrating chemical bonding, they lack aromaticity and do not adequately depict magnetic behavior. To draw a Lewis structure for an atom, one must know number of valence electrons.
Therefore, to draw a Lewis structure for an atom, one must know number of valence electrons.
To learn more about Lewis structure, here:
https://brainly.com/question/20300458
#SPJ6
Magnesium, Cobalt, and Beryllium are all examples of
A. metals
C. metalloids
D. none of the above
B. nonmetals
6 Which element requires the least amount of
energy to remove the most loosely held electron
from a gaseous atom in the ground state?
(1) Na
(3) P
(2) Ar
(4) Ci
Answer: 1) Na because it requires least amount of energy.
Na requires the least amount of energy to remove the most loosely held electron.
Why does Na have the least ionization enthalpy among the given elements?Electronic configuration of the elements:Na - [Ne] 3s¹
P - [Ne] 3s² 3p³
Ar - [Ne] 3s² 3p⁶
Cl - [Ne] 3s² 3p⁵
As it can be seen, Na after losing one electron from its outermost subshell attains a stable noble gas configuration. So, it will require a very less amount of energy i.e., ionization enthalpy, to remove that electron.P, which already has a half-filled subshell, will not readily lose the electrons and hence requires more amount of energy.Ar has the noble gas configuration i.e., all its subshells are fully filled. A very large amount of energy will be required to remove its electron.Learn more about ionization energy here:
https://brainly.com/question/27938503?referrer=searchResults
#SPJ2
Un móvil avanza con mru a razón de 25 m/s durante 2,54 h. Cuál es la distancia recorrida por el móvil
Answer:
La distancia recorrida por el móvil es 228.600 m
Explanation:
El movimiento rectilíneo uniforme MRU es el movimiento que describe un cuerpo o partícula a través de una línea recta a velocidad constante. Es decir:, en este caso el movimiento es lineal en una única dirección y la velocidad de desplazamiento es constante.
La velocidad es una magnitud física que expresa la relación entre el espacio recorrido por un objeto y el tiempo empleado para ello mediante la expresión:
[tex]velocidad=\frac{distancia}{tiempo}[/tex]
En este caso:
velocidad= 25 m/sdistancia= ?tiempo= 2,54 h= 9144 s (siendo 1 h= 3600 s)Reemplazando:
[tex]25 \frac{m}{s} =\frac{distancia}{9144 s}[/tex]
y resolviendo obtienes:
distancia= 25[tex]\frac{m}{s}[/tex] *9144 s
distancia= 228.600 m
La distancia recorrida por el móvil es 228.600 m
A movement is rectilinear uniform when an "object" (for example) travels in a straight path at a constant speed, given that its acceleration is zero.
To start solving an exercise, we obtain the data:Velocity (v) = 25m/s
Distance (d) = ?
Time (t) = 2.54hr = 9,144 s
Looking at the data, we see that the time is in hr, but we need it in seconds. Therefore we do a conversion from hours to minutes, taking into account that 1 hour is equal to 3600 seconds.
2,54 hr * (3600 sec / 1 h ) = 9144 secTo calculate the distance traveled by the mobile, the speed is multiplied by the time taken.
For this the following formula is applied:
d = v * tWe apply the data in the formula; to solve for the distance.
d = 25 m/s * 9144 sd = 228, 600 mAnswer: The distance traveled by the mobile is 228,600 meters.
Consider the equilibrium equation for a general reaction: A + B C + D. Explain what happens to the reactants and products from Time 0 until the reaction reaches equilibrium.
Answer:
See explanation
Explanation:
For the equilibrium; A + B ⇄C + D
At time = 0 secs, the concentration of products is zero while the concentration of reactants decreases steadily.
As time goes on, the concentration of the reactants continues to decrease while the concentration of products increases.
At equilibrium the concentration of both reactants and products are now the same because the rate of forward reaction is equal to the rate of reverse reaction are now the same.
NEED ASAP. WILL MARK BRAINLIEST!
1. (06.01 LC)
Based on the kinetic theory, which statement is true? (15 points)
A. The particles of matter are stationary.
B. Matter is composed of very small particles.
C. Matter is made up of only charged particles.
D. The particles of matter have zero kinetic energy.
Answer:
B. Matter is composed of very small particles.
Explanation:
All matter is composed of extremely small particles called atoms. All atoms of a given element are identical in size, mass,
The statement is true based on the kinetic theory is that; "matter is composed of very small particles.".
Kinetic theory of matter
The kinetic theory of matter holds that the particles that compose matter are in constant random motion. In this theory, all matter is composed of molecules.
Now, the statement is true based on the kinetic theory is that; "matter is composed of very small particles.".
Learn more about kinetic theory:https://brainly.com/question/14349214?
#SPJ2
IM IN A TEST
A solution of the acid contains hydrogen ions. Write an ionic equation for the reaction of sodium with the hydrogen ions in the acid. Include state symbols in your answer.
Answer:
The thing to recognize here is the fact that you're dealing with a neutralization reaction that features sodium hydroxide,
NaOH
, a strong base, and hydrochloric acid,
HCl
, a strong acid.
This tells you that the two reactants will dissociate completely in aqueous solution to produce cations and anions. More specifically, you will have
NaOH
(
a
q
)
→
Na
+
(
a
q
)
+
OH
−
(
a
q
)
HCl
(
a
q
)
→
H
+
(
a
q
)
+
Cl
−
(
a
q
)
Now, when these two solutions are mixed, the hydroxide anions produced by the strong base and the hydrogen ions produced by the strong acid will neutralize each other to produce water.
The sodium cations and the chloride anions act as spectator ions because they are present on both sides of the chemical equation as ions.
You can tell that this is the case because sodium chloride,
NaCl
, one of the two products of the reaction, is soluble in aqueous solution.
So, the complete ionic equation will be
H
+
(
a
q
)
+
Cl
−
(
a
q
)
+
Na
+
(
a
q
)
+
OH
−
(
a
q
)
→
Na
+
(
a
q
)
+
Cl
−
(
a
q
)
+
H
2
O
(
l
)
To get the net ionic equation, simply remove the spectator ions
H
+
(
a
q
)
+
Cl
−
(
a
q
)
+
Na
+
(
a
q
)
+
OH
−
(
a
q
)
→
Na
+
(
a
q
)
+
Cl
−
(
a
q
)
+
H
2
O
(
l
)
You will end up with
H
+
(
a
q
)
+
OH
−
(
a
q
)
→
H
2
O
(
l
)
SIDE NOTE You will sometimes see the hydrogen ion being replaced by the hydronium ion,
H
3
O
+
.
In this case, the dissociation of hydrochloric acid is represented by the chemical equation
HCl
(
a
q
)
+
H
2
O
(
l
)
→
H
3
O
+
(
a
q
)
+
Cl
−
(
a
q
)
The net ionic equation will now take the form
H
3
O
+
(
a
q
)
+
OH
−
(
a
q
)
→
2
H
2
O
(
l
)
How many moles are in 5.60 x 1027 molecules of carbon monoxide? with a bridge Please answer quickly I have to turn it in soon
Answer:
9302 moles of CO contain 5.60×10²⁷ molecules
Explanation:
We solve this with Avogadro's number.
NA = 6.02×10²³
This number states the how many particles are in 1 mol of anything.
1 mol of atoms contains 6.02×10²³ atoms
1 mol of molecules contains 6.02×10²³ molecules.
We apply a rule of three:
6.02×10²³ molecules are contained in 1 mol of CO
Then, 5.60×10²⁷ molecules may be contained in (5.60×10²⁷ . 1) / 6.02×10²³
= 9302 moles
What is the relationship between the density and position of each Earth layer?
Answer:
The atmosphere and Earth's interior are layered by density. Gravity pulls more strongly on denser materials so denser materials are at the center of things. Earth's core, at its center, is denser than its crust. The lowest layer of the atmosphere is denser than the upper layer.
Hope it helps
Please mark me as brainliest
THank you
Answer:
Gravity pulls more strongly on denser materials so denser materials are at the center of things.
Explanation:
Earths core at its center is denser than its crust the lowest layer of the atmosphere is denser than the upper layer
How many grams of barium sulfate, BaSO 4 , be precipitated when 2.25 moles of sodium sulfate , Na 2 SO 3 , reacts with an excess of barium chloride in solution ?
Answer:
525.1 g of BaSO₄ are produced.
Explanation:
The reaction of precipitation is:
Na₂SO₄ (aq) + BaCl₂ (aq) → BaSO₄ (s) ↓ + 2NaCl (aq)
Ratio is 1:1. So 1 mol of sodium sulfate can make precipitate 1 mol of barium sulfate.
The excersise determines that the excess is the BaCl₂.
After the reaction goes complete and, at 100 % yield reaction, 2.25 moles of BaSO₄ are produced.
We convert the moles to mass: 2.25 mol . 233.38 g/mol = 525.1 g
The precipitation's equilibrium is:
SO₄⁻² (aq) + Ba²⁺ (aq) ⇄ BaSO₄ (s) ↓ Kps
525.1 0 g of BaSO₄ are produced.
The reaction of precipitation is:
Na₂SO₄ (aq) + BaCl₂ (aq) → BaSO₄ (s) ↓ + 2NaCl (aq)
Ratio is 1:1. So 1 mol of sodium sulfate can make precipitate of 1 mol of barium sulfate.
Molar mass of [tex]BaSO_4[/tex] is 233.38 g/mol
The formula for the number of moles is as follows:-
[tex]Number\ of\ moles=\frac{Mass}{Molar\ Mass}[/tex]
[tex]Mass=2.25\ moles\times233.38\ g/mol\\=525.10\ g[/tex]
So, 525.10 g of barium sulfate be precipitated.
To know more about:-
https://brainly.com/question/14286132
What astronomical event correspond to the passage of one month
Answer:
It takes approximately 28 days for the Moon to revolve around Earth. Revolution is the elliptical motion of a body traveling around another body
Explanation:
What conditions must be met for an object to be weightless?
in a lift if an object is moving with acceleration same as acc. due to gravity then apparent weight is 0. so it seems object is weightless.
or else I dunno maybe in space
technically you will be weightless when no force acts on you
which of the following has a mass of 10.0g
Answer: 0.119 mole of Kr has a mass of 10.0 g
Explanation:
The complete Question was ontained online, albeit, it was incomplete, even from the online source. But the solution is possible based on the part of the question obtained.
Complete Question
Which of the following Noble Gases has a mass of 10.0 g?
A. 2.02 mol Ne B. 0.119 mol Kr C.
Solution
Number of moles = (Mass)/(Molar Mass)
Mass = (Number of moles) × (Molar mass)
Checking the options, one at a time,
A. 2.02 moles of Neon
Number of moles = 2.02 moles
Molar Mass of Neon = 20.1797 g/mol
Mass = 2.02 × 20.1797 = 40.762994 g ≠ 10.0 g
Not the answer.
B. 0.119 moles of Krypton
Number of moles = 0.119 moles
Molar Mass of Krypton = 83.798 g/mol
Mass = 0.119 × 83.798 = 9.971962 g ≈ 10.
Explanation:
hope this helps have a great night ❤️❤️❤️
Increasing velocity/height also increases what three things about the spatter
Why is light colour given off?
Answer:
Light is made up of wavelengths of light, and each wavelength is a particular colour. The colour we see is a result of which wavelengths are reflected back to our eyes. The visible spectrum showing the wavelengths of each of the component colours.
Hope this helps you. Do mark me as brainliest.
Balance this equation. Not all spots have to have a number.
____Na(s) + ____H2O(g) → ____NaOH(s) + ____H2 (g)
2Na+2H2O----2NaOH+H2
• Compare the transmutations caused by positron emissions and electron capture
Positron emission gives a new nucleus with the same mass number but an atomic number that is one less than the old one. Electron emission gives an atomic number that is one greater. Both positrons and electrons are β particles. A positron is the antimatter counterpart of an electron