Answer:
0.78L
Explanation:
According to Charles law, the equation below can be used to calculate the the new volume of the balloon
V1/T1 = V2/T2 .........eqn(1)
Where T1= initial temperature= 29.4°C
T,2= final temperature= 33.7°C
V2= final volume= ?
V1= initial volume= 0.68L
Making V2 the subject of formula from eqn(1)
V2=( T2 × V1)/T1
= (33.7 × 0.68)/29.4
=0.78L
Hence, the new volume of the balloon is 0.78L
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
Chemical energy is contained in the chemical bonds of a substance. True or False
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
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 ❤️❤️❤️
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.
2B + 3H2 2BH3
How many moles of BH3 are synthesized when 27.0 moles of H2 completely react?
Answer: 18.0 moles of [tex]BH_3[/tex] will be produced when 27.0 moles of [tex]H_2[/tex] completely react.
Explanation:
The balanced chemical equation is:
[tex]2B+3H_2\rightarrow 2BH_3[/tex]
According to stoichiometry :
3 moles of [tex]H_2[/tex] produce = 2 moles of [tex]BH_3[/tex]
Thus 27.0 moles of [tex]H_2[/tex] will produce=[tex]\frac{2}{3}\times 27.0=18.0 moles[/tex] of [tex]BH_3[/tex]
Thus 18.0 moles of [tex]BH_3[/tex] will be produced when 27.0 moles of [tex]H_2[/tex] completely react.
zinc + sulfuric acid → ..........+ hydrogen
Iron+ ....... iron chloride + ......
.......+ hydrochloric acid → zinc chloride +.......
Increasing velocity/height also increases what three things about the spatter
A substance joined by this type of bond shares electrons
Answer: Covalent
Explanation:
A covalent compound is formed when an element shares its valence electron with another element. This compound is formed between two non metals. Example: [tex]HF[/tex]
An ionic compound is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element or the metal and the element which accepts the electrons is known as electronegative element or non metal. Example: [tex]NaCl[/tex]
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
how is bacteria on mars counted as life but a heartbeat on earth is not?
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
the metallic compound reduced to the metal by electrolysis is _____
please girls answer, because I think u r always right.
Answer:
Explanation:
u wanted to talk
What type of mixture is salad dressing please tell me? Tysm!
Answer:
Salad dressing made with oil vinegar, and herb is a homogeneous mixtures. Because heterogeneus mixture is composed of two or more components which are unequal distributed.
But in normal salad it's heterogeneous
What is a atmosphere
Magnesium, Cobalt, and Beryllium are all examples of
A. metals
C. metalloids
D. none of the above
B. nonmetals
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
What is the molar mass C₆H₁₂O₆
Answer:
molar mass= 180
Explanation:
molar mass = (6×12) + (12×1) + (6×16) = 180
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.
can someone help me please-
i just need some answers-
Answer:
1.Newton's first law is often called the law of inertia.
2.Newton's second law of motion is F = ma
3.An object not wanting to change its speed or direction
4.a bike would have more acceleration
5.it doesn't have auto brakes and its lighter than a motorcycle
6. Second law
7. First law
8. First law
9. Second law
10. First law
Those should be right!
What does it mean if a trait is inherited
Answer:
An inherited trait is one that is genetically determined. Inherited traits are passed from parent to offspring according to the rules of Mendelian genetics.
Explanation:
20 points
Which of the following objects below is NOT needed to test electrical conductivity?
battery
object powered by electricity
insulated wire
electrical tape
Answer:
I`m pretty sure it`s electrical tape.
Explanation:
The objects which does not conduct electricity are called insulators which are not needed to test electrical conductivity. Hence, insulated wire is the correct option.
What is conductivity ?Conductivity of a substance is the ability to conduct electrically or thermally through the substance. Based on their conductivity, there are three classes of materials conductors, semiconductors and insulators.
Conductors are materials conducting heat and electricity at all temperatures. Semiconductors conduct only at higher temperature or on doping. Insulators are material does not conduct at any condition.
Metals are good conductors. Silicon , germanium etc. are semiconductors. Whereas, wood, plastic etc. are insulators they does not allow flow of electrons through it. Therefore, an insulated wire is not needed to test conductivity.
Find more on conductivity:
https://brainly.com/question/15085692
#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
)
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.
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
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
Balance this equation. Not all spots have to have a number.
____Na(s) + ____H2O(g) → ____NaOH(s) + ____H2 (g)
2Na+2H2O----2NaOH+H2
An atom of helium is smaller in width then an atom of hydrogen, but it's more then twice the mass. Why are these different?
Answer:
i think it cuz ones broken down by fision more
Explanation:
Which of the following statements best describe the particles of a liquid?
Answer:
you already have the right answer b
Explanation:
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.