Answer:
c. 5days
Explanation:
there is no question but if it's a graph
the answer is 5days
At equilibrium A. All reactions have ceased B. Only the forward reaction continues C. Only the reverse reaction continues D. Both the forward and reverse reactions continues
Answer:
D)both the forward and reverse reactions continue.
Explanation:
Chemical equilibrium can be regarded as state whereby rate of the forward reaction is equal to rate of backward reaction. It should be noted that At equilibrium both the forward and reverse reactions continue.
A slug travels the length of a log in 2 hours. If the slug's average speed is 1.5 cm / minute how long is the log
Answer:
The length of the log is 180 cm
Explanation:
From the question given above, the following data were obtained:
Time = 2 hours
Speed = 1.5 cm/min
Distance =?
Next, we shall convert 2 hours to minutes. This can be obtained as follow:
1 h = 60 mins
Therefore,
2 h = 2 × 60
2 h = 120 mins
Finally, we shall determine the Lenght of the log. This can be obtained as follow:
Time = 120 mins
Speed = 1.5 cm/min
Distance =?
Speed = distance / time
15 = distance / 120
Cross multiply
Distance = 1.5 × 120
Distance = 180 cm
Therefore, the length of the log is 180 cm
Answer:
180
Explanation:
PLEASE HELP ME ASAPPPPPPPP!!!!!!
Answer:
I think C But I can't really see it well
1.9x10^23 atoms of sulfur to grams of sulfur
Answer:
see explanation and punch in the numbers yourself ( will be better for your test)
Explanation:
If you are given atoms you need to divide by Avogadro's number 6.022x10^23
then you will have moles of sulfur-- once you have moles multiply by the molar mass of sulfur to go from moles to grams
mm of sulfur is 32 g/mol
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, the grams of sulfur in 1.9x10²³ atoms of sulfur is 9.92g.
What is mole?The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance.
Given number of atoms= 1.9x10²³atoms
we know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number
mole =given number of atoms ÷ 6.022×10²³(Avogadro number)
Substituting the values
mole=1.9x10²³÷ 6.022×10²³
mole = 0.31 mole of sulfur
Mole = given mass÷ Molar mass
Molar mass of sulfur=32g/mol
mass of sulfur =0.31 mole ×32g/mol
mass of sulfur=9.92g
Therefore, the grams of sulfur in 1.9x10²³ atoms of sulfur is 9.92g.
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Convert 1.65 moles of nitrogen gas at STP to liters.
What is the coefficient of the scientific notation answer ? What is the exponent of the scientific notation answer ? How many significant figures are there in the answer ? What is the right most significant figure in the answer ?
Answer:
See explanation
Explanation:
We know that 1 mole of a gas occupies 22.4 L
Hence, 1.65 moles of nitrogen gas occupies 1.65 moles * 22.4 L/1 mole = 36.96 L or 3.696 * 10^1 L = 3.70 * 10^1 L
The exponent of the scientific notation answer = 1
The significant figures there are in the answer = 4
The right most significant figure in the answer = 2
how many moles of sodium phosphate are required to make 7.5 moles of sodium nitrate in 2Na3PO4+3Be(NO3)=6NanO3+Be3(PO4)2
Answer:
2.5 moles of sodium phosphate
Explanation:
3 Pb(NO3)2 + 2 Na3PO4 → Pb3(PO4)2 + 6 NaNO3
6 (moles in the reaction)- 7.5(moles in the task)
2 (moles in the reaction)- x (moles in answer) ⇒6x = 2*7.5 ⇒ x = 15/6=2.5 (moles)
The pH of a solution can be determined by using a
A. Filter paper
B. Potentiometer
C. Thermometer
D. pH paper
real answers plz not bots
6 a What does the sacrificial protection of iron mean?
b Both magnesium and zinc can be used for it. Why?
c But copper will not work. Explain why.
Explanation:
A-Corrosion
B- Magnesium helps ur body regulates its zinc levels and zinc absorbs into absorbs magnesium more efficiently
I have a Helium party balloon that can hold 3.0 liters of gas. If I blow up this balloon with 0.10 moles of oxygen gas at a pressure of 1.0 atmosphere, what is the temperature of the balloon?
Answer:
I am not yet sure on my answer
I would not want to give you wrong answers
Sorry
Describe how the size of the sun compares to the sizes of the other stars.
Answer:
The sun's circumference is about 2,713,406 miles (4,366,813 km). It may be the biggest thing in this neighborhood, but the sun is just average compared to other stars. Betelgeuse, a red giant, is about 700 times bigger than the sun and about 14,000 times brighter.
Explanation:
looked it up
Explanation:
The sun's circumference is about 2,713,406 miles (4,366,813 km). It may be the biggest thing in this neighborhood, but the sun is just average compared to other stars. Betelgeuse, a red giant, is about 700 times bigger than the sun and about 14,000 times brighter
The mass of this atom is:
u. 3 mass units
b. 4 mass units
c. 6 mass units
d. 7 mass units
e. 11 mass units
3. how many moles are present in 10.0 g of aluminum(Al)
Answer:
1 Mole
here is answer
hope it will help you
Question is in picture
At a certain temperature 3.24 moles of co2 gas at 2.15atm takes up a volume of 35.28 what is the temperature in celsius
Answer:
The temperature is 12.35 C.
Explanation:
An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.
An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:
P * V = n * R * T
In this case:
P= 2.15 atmV= 35.28 Ln= 3.24 molesR= 0.082 [tex]\frac{atm*L}{mol*K}[/tex]T= ?Replacing:
2.15 atm* 35.28 L= 3.24 moles* 0.082[tex]\frac{atm*L}{mol*K}[/tex] * T
Solving:
[tex]T=\frac{2.15 atm* 35.28 L}{3.24 moles* 0.082\frac{atm*L}{mol*K}}[/tex]
T=285.5 K= 12.35 C (being 273.15 K= 0 C)
The temperature is 12.35 C.
The relation between the moles, volume, temperature, and pressure is given by the ideal gas equation. The temperature of a gas is 12.35 celsius.
What is the ideal gas law?The ideal gas law is the hypothetical gas law that depicts the relation between pressure, volume, moles of the compound, and the temperature of the gas.
The ideal gas equation is given as,
[tex]\rm PV = nRT[/tex]
Given,
Pressure (P) = 2.15 atm
Volume (V) = 35.28 L
Number of moles (n) = 3.24 mol
Gas constant (R) = 0.082
Temperature (T) = ?
Substituting values in the above equation, the temperature is calculated as:
[tex]\begin{aligned} \rm T &= \rm \dfrac{PV}{nR}\\\\&= \dfrac{2.15\times 35.28}{3.24 \times 0.082}\\\\&= 286.23 \;\rm K\end{aligned}[/tex]
Therefore, 12.35 degrees Celsius is the temperature of the gas.
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Hello, I need help in this part of chemistry, I need the chemical names of the following four:
1) B and F3
2) Se and I2
3) As2 and Se3
ASAP! Please,,,
1. How many moles are in 3.50 grams of NaCl?
0.0600 mol
O 203 mol
O 78.4 mol
O 0.156 mol
How does the heart keep the blood flowing throughout the body?
It contracts and relaxes
It inflates and deflates
It inhales and exhales
It opens and closes
Answer:
b
Explanation:
Answer:
It contracts and relaxes awnser is a
Explanation:
im from flvs
Which molecule is butyne?
H,C CH,
ОА. С=С
н Н
В.
н нннн
| | | | |
Ос. Н-с-с-с-с-с-н
1 І
Н Н Hн Н
Hн
| |
OD. н-c=C-с-с-н
ТІ
Hн
Answer:
H,C CH,
Explanation:
A bottle contains 2.5 moles of KOH dissolved in water, and the molarity of the solution is 0.16 M.
What volume of solution is in this bottle?
Answer:
V = 15.6 L
Explanation:
Hello there!
In this case, according to the definition of molarity in terms of the moles of solute divided by the volume of the solution, it is possible for us to write:
[tex]M=n/V[/tex]
Thus, given the moles and concentration of the solution, we can find the volume as shown below:
V=n/M
Therefore, we plug in the given data to obtain:
V = 2.5mol /(0.16mol/L)
V = 15.6 L
Best regards!
If 3.0 moles of a gas are in a 60.0 liters container at 400.0 K, what is the pressure, in atm, inside
the container?
A.
0.61 atm
B.
16 atm
C.
1.6 atm
Answer:
C. 1.6 atm
Explanation:
PV = nRT
Solve for P --> P = nRT/V
n = 3.0 mol
R = 0.08206 L atm / mol K
T = 400.0 K
V = 60.0 L
P = (3.0)(0.08206)(400.0) / (60.0) = 1.6 atm
Help me pretty please
Answer:
I'm pretty sure light waves do not require a medium to travel
Of the following elements ____ can form a rare +4 ion *
a) Aluminum
b) Lead
c) Krypton
d) Uranium
Answer:
d is the answer.........
What is the density of an object that has a mass of 10 grams and a volume of 5 mL?
Answer:
2 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question we have
[tex]density = \frac{10}{5} = 2 \\ [/tex]
We have the final answer as
2 g/mLHope this helps you
How many meters are in 65 millimeters?
Answer:
0.065 meters
Explanation:
Answer:
Start by dividing the length value by 1000, so that would be
65 / 1000 = 0.065 meters
Light is a type of energy produced by the vibration of electrically charged particles.
True or false?
Answer:
big brain
Explanation:
Convert 812.4 kPa into atm
Answer:
Explanation:
There are a series of unit used to measure PRESSURE. They include millimetre mercury (mmHg), atmospheric pressure (atm), kilopascal etc. These units of measurement are interconvertible i.e. can be changed from one unit to another.
Based on this question asking to convert
1 kilopascal = 0.00986923atm
El mercurio ha sido utilizado como elemento para medir la temperatura porque Es una mezcla. Al aumentar la temperatura se dilata con facilidad. Es un buen conductor del calor. Es un buen conductor de la electricidad.
Answer:
La respuesta correcta es: Al aumentar la temperatura se dilata con facilidad
Explanation:
El mercurio (Hg) es un elemento metálico que a temperatura ambiente es un líquido. Tiene la propiedad de dilatarse con facilidad al aumentar la temperatura, propiedad que ha sido utilizada en los termómetros de mercurio. En estos termómetros, el mercurio está dentro de un tubo de vidrio graduado con un bulbo para transmitir el calor. Al estar en contacto con un cuerpo más caliente (a mayor temperatura), el mercurio del interior del termómetro se dilata (expande su volumen) y asciende por el tubo indicando la temperatura correspondiente, graduada en el vidrio.
What are the major parts of the ecosystem
Answer:
Ecosystems have lots of different living organisms that interact with each other. The living organisms in an ecosystem can be divided into three categories: producers, consumers and decomposers. They are all important parts of an ecosystem. Producers are the green plants.
Explanation:
Hope this helps
convert 5.91 x 10^26 molecules h20 to moles
Answer:
0.432 mol
Explanation:
Divide the given number of molecules by Avogadro's constant. Avogradro's constant is the number of atoms/molecules in a mole of a substance.
Therefore,
2.60
⋅
10
23
molecules
6.022
⋅
10
23
molecules/mol
=
0.432175 moles
≈
0.432 moles
Explanation:
Can plants and animals adapt more easily to slow environmental changes or fast environmental changes? Explain.
A. None of the other answer choices
B. Fast changes, because they weed out weak organisms
C. Fast changes, because species prefer to adapt quickly
D. Slow changes, because they give species time to adapt
2..Which trait would likely help an organism survive in a cold environment so it can reproduce offspring?
Responses
A. A good sense of smell
B. Layers of fat
C. Strong legs
D. Large ears
Answer:
D
Explanation: