Answer: The particles need energy to overcome the attractions between them. As the liquid gets warmer more particles have sufficient energy to escape from the liquid. Eventually even particles in the middle of the liquid form bubbles of gas in the liquid.
Explanation:
More bushes of potatoes will be produced if the soil is fertilized more WHAT IS THE INDEPENDENT VAIRABLE AND THE DEPENDENT VARIABLE
Answer:
The dependent variable is the bushes of potatoes while the soil is an independent variable.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).
In an experiment , the variable being manipulated by an experimenter is known as an independent variable while the dependent variable is the event expected to change when the independent variable is manipulated.
Hence, the dependent variable is the bushes of potatoes while the soil is an independent variable.
A sample of neon gas is at a temperature of 60°C and has a volume of 300 cm. What is the volume of the gas if it is heated to 100°C at a constant pressure?
Answer:
336.04 cm
Explanation:
T1 = 60+273 = 333K
T2 = 100+273 = 373K
V2 = (V1×T2)/T1
V2 = 300×373/333
V2 = 336.04 cm
What is the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules?
We have that for the Question "" it can be said that the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules is
Amount of CO_2(g)=221.35g
From the question we are told
What is the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules?
Generally the equation for the is mathematically given as
[tex]No moles in 3*02*10^{24}=\frac{3.03*10^{24}}{6.023*10^-{23}}[/tex]
No moles in 3*02*10^{24}=5.03moles
Amount of CO_2(g)=5.03moles *44g/mol
Amount of CO_2(g)=221.35g
Hence
the mass (in grams) of 3.03 × 1024 molecules of carbon dioxide molecules is
Amount of CO_2(g)=221.35g
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the internal energy of a substance Is called
Answer:
The internal energy is the total amount of kinetic energy and potential energy of all the particles in the system. ... When the substance melts or boils, energy is put in to breaking the bonds that are holding particles together, which increases the potential energy.
Explanation:
Definition of fluid friction
Answer:
Fluid friction describes the friction between layers of a viscous fluid that are moving relative to each other
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Eye Color
Genetic
O Environmental
O Both
Answer:
the first cause eye color is genetic
Which of the following lines from the story indicates a flashback?
A sample of methane gas, CH4, occupies 3.25 L at temperature of 19.0 o C. If the pressure is held constant, what will be the temperature be if the volume expands to 10.00 L?
Answer:
625.46 °C
Explanation:
We'll begin by converting 19 °C to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
T(°C) = 19 °C
T(K) = 19 °C + 273
T(K) = 292 K
Next, we shall determine the Final temperature. This can be obtained as follow:
Initial volume (V₁) = 3.25 L
Initial temperature (T₁) = 292 K
Final volume (V₂) = 10 L
Final temperature (T₂) =?
V₁/T₁ = V₂/T₂
3.25 / 292 = 10 / T₂
Cross multiply
3.25 × T₂ = 292 × 10
3.25 × T₂ = 2920
Divide both side by 3.25
T₂ = 2920 / 3.25
T₂ = 898.46 K
Finally, we shall convert 898.46 K to celsius temperature. This can be obtained as follow:
T(°C) = T(K) – 273
T(K) = 898.46 K
T(°C) = 898.46 – 273
T(°C) = 625.46 °C
Therefore the final temperature of the gas is 625.46 °C
Question 1
Calculate the pressure in a 12 Liter tank containing 2.52 moles of argon gas at 5°C?
a 8.2 atm
b 2.4 atm
с 0.3 atm
d 5 atm
PLEASE HELP
Answer:
D
Explanation:
Helllpppppppppppppppppppp
Answer:
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on eight comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.!
Explanation:
Mg(OH)2
SO2
(NH4)2SO4
H3PO4
(All the numbers are subscripts!)
Answer:
I think this is it. and 38 points??
2. How many moles are in 2.8 Liters of CO2 gas?
Answer:
0.125 moles
Explanation:
2.8 litres is equivalent to 2.8dm³
At STP,
1 mole = 22.4 dm³
x mole = 2.8 dm³
Cross multiply
22.4x = 2.8
Divide both sides by 22.4
x = 2.8/22.4
x = 0.125
If you had 14.5 moles of gold, how many atoms would you expect to have?
Answer:
(14.5 mol) x (6.022 x 10^23 atoms/mol) = 8.73 × 10^24 atoms
Explanation:
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ASAP EASYYYY!!!!!!!!
List three household products that should go to a secure landfill site instead of regular sanitary landfill.
Answer:
A 0.60 mol sample of PCl 3 (g) and a 0.70 mol sample of Cl 2 (g) are placed in a previously evacuated 1.0 L container, and the reaction represented
Explanation:
The initial pressure of a balloon floating in the air is 0.53 atm. After the balloon has reached a certain point in the sky, the volume of the air particles in the balloon is 4.3 liters at a final pressure of 0.42 atm. What was the initial volume of the balloon?
Answer:
The initial volume of the balloon is 3.41 L.
Explanation:
The gas laws are a set of chemical and physical laws that allow determining the behavior of gases in a closed system. The parameters evaluated in these laws are pressure, volume, temperature, and moles.
As the volume increases, the gas particles (atoms or molecules) take longer to reach the walls of the container and therefore collide with them fewer times per unit of time. This means that the pressure will be lower because it represents the frequency of collisions of the gas against the walls. In this way pressure and volume are related, determining Boyle's law which says:
"The volume occupied by a certain gaseous mass at constant temperature is inversely proportional to pressure"
Boyle's law is expressed mathematically as:
Pressure * Volume = constant
or P * V = k
Now it is possible to assume that you have a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment. If you vary the volume of gas to a new value V2, then the pressure will change to P2, and it will be fulfilled:
P1 * V1 = P2 * V2
In this case:
P1= 0.53 atmV1= ?P2= 0.42 atmV2= 4.3 LReplacing:
0.53 atm* V1= 0.42 atm* 4.3 L
Solving:
[tex]V1=\frac{0.42 atm* 4.3 L}{0.53 atm}[/tex]
V1= 3.41 L
The initial volume of the balloon is 3.41 L.
A bowling ball rests on the floor. The bowling ball is given a push.
Which of the following is the most likely change to happen to the bowling ball?
It will move.
It will gain mass.
It will change colors.
It will change shape.
Answer:
A. It will move.
When one element replaces another element the reaction is known as a _ replacement reaction
Answer:
Single replacement reaction
Explanation:
A single replacement reaction, sometimes called a single displacement reaction, is a reaction in which one element is substituted for another element in a compound.
Which is NOT an application of chemistry to life? *
a. Fertilizers used by farmers
b. Soaps used to clean
c. Medicine used by doctors
d. Hammer used by construction worker
What is the name for As4010?
Answer: As4010 is the Molecular Formula of Arsenic oxide. its Molecular Weight is 459.68.
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have a great day keep smiling be happy stay safe.
7
Why might living in a high-pollution area have a negative effect on a person's
thyroid?
I
There is a very slight change in gravity at the top of a mountain. Which property would most likely be less at the top of a mountain?
mass
weight
body density
body temperature
Answer:
The entity that decreases is the Weight.
Explanation:
Every object on the surface of the earth is usually pulled downwards by the action of gravity. The force or weight is W = mg
Now, the farther one gets away from the surface of the earth by climbing a mountain, the further the person is from the Earth's centre of gravity.
We know that the formula for Force of gravity away from the Earth's surface is given by;
F_g = GM1M2/r²
So the greater the distance, the lesser the gravitational force.
Now, the gravitational force equals the weight of the individual.
Thus, the entity that decreases is the Weight of the individual.
Choose the correct name for each acid. Click here
to access the common polyatomic ion sheet.
HNO2:
DONE
HI:
DONE
H3PO4 :
DONE
The correct name of HNO₂, HI and of H₃PO₄ is nitrous acid, hydroiodic acid and phosphoric acid respectively.
What are acids?Acids are those substances in which carboxylic acid (-COOH) is present and pH value of acids falls in the range of 0 to 6.9.
Name of the HNO₂ compound is nitrous acid, of HI is hydroiodic acid and of H₃PO₄ is phosphoric acid.
Hence name of the HNO₂, HI and of H₃PO₄ is nitrous acid, hydroiodic acid and phosphoric acid respectively.
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Answer: HNO2 nitrours acid
HI Hydroiodic acid
H3PO4 phosphoric acid
Explanation: edu
Where are organelle located
Answer:
organelle are located in da cytoplasm of eukaryotic and prokaryotic cells
Hope this helps!
25.2 g of CuSO4 6H20 (mm: 267.72 g/mol) is dissolved in 28.0 mL of water, calculate the molarity.
Answer:
3.36 M
Explanation:
Step 1: Given data
Mass of CuSO₄.6H₂O (m): 25.2 gMolar mass of CuSO₄.6H₂O (M): 267.72 g/molVolume of solution (V): 28.0 mL (we will assume it is equal to the volume of water)Step 2: Calculate the moles (n) of CuSO₄.6H₂O (solute)
We will use the following expression.
n = m/M
n = 25.2 g / (267.72 g/mol) = 0.0941 mol
Step 3: Calculate the molarity
Molarity is equal to the moles of solute divided by the liters of solution.
M = 0.0941 mol/0.0280 L = 3.36 M
Why should we work to protect estuaries? Select all that apply.
PLSSSS
Answer:
1, 3, and 4
Explanation:
I'm guessing, but those make the most sense
Answer:
3 and 4
Explanation:
What is the charge on the cation in the ionic compound when sodium and sulfur bond?
Answer:
1+
Explanation:
Sodium has one valence electron. When it bonds with a nonmetal like sulfur, it gives up that electron to become a positively charged ion (cation) with a charge of 1+.
The majority of Earth's energy comes from.
1) Deep ocean vents
2) Zone
3) Volcanoes
4) The sun
6.
Why are estuaries home to diverse marine life not found elsewhere?
is hrimming with
Answer:
Estuaries are bodies of water where rivers meet the sea or a large lake. Rivers spread out and slow when they meet the sea, creating unique conditions that are not found elsewhere. They provide homes for diverse wildlife, including popular fish species.
PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!! THIS IS DUE IN 10 MINUTES!!!!!
Forensic chemists are analyzing blood samples taken from a murder victim. They run tests for any trace of substances that do not naturally occur in the bloodstream. Nothing odd registers but they do find extremely high levels of caffeine. What does this most likely indicate about the murder victim?
A) They drank a lot of coffee.
B) They worked on a coffee bean plantation.
C) They were poisoned with powdered caffeine.
D) Someone put arsenic in their coffee.
Answer:
c
Explanation:
Answer:they were poisoned with powdered caffeine (C)
Explanation:
I just took the test! And got all the points for this question :) hoped I could help
What are sum things yhu can do to prevent brain damamge
Answer:
not bang your head
Explanation:
Answer:
focus on your surroundings