Answer:
The ideal gas law is the relationship described by the equation" PV = nRT where P is pressure , V is volume , n is the number of moles of an ideal gas , R is the ideal gas constant , and T is the temperature .
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Explanation:
Answer:
PV=nRT
Explanation:
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.
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:
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.
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
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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Which of the following lines from the story indicates a flashback?
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:
Mg(OH)2
SO2
(NH4)2SO4
H3PO4
(All the numbers are subscripts!)
Answer:
I think this is it. and 38 points??
HElPpp AsAPp I’ll mark you as brainlister!!
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+.
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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:
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.
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
Extreme dryness is a characteristic of the____.
grasslands
desert
tropical rainforest
Answer:
desert
Explanation:
rainforest include a lot of rain, and grasslands have grass. grass includes water and sunlight. which leaves you to desert
You are decomposing 2.00 mol of baking soda according to the following equation:
2 NaHCO3 -> Na2CO3 + CO2 + H2O
If you only collected 0.750 mol of Na2CO3 after the reaction finished, what was the
percent yield?
75.0%
62.5%
37.5%
25.0%
Question 6 (1 point)
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Where are organelle located
Answer:
organelle are located in da cytoplasm of eukaryotic and prokaryotic cells
Hope this helps!
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:
7
Why might living in a high-pollution area have a negative effect on a person's
thyroid?
I
HELPPPPPPP PLEASEEEE
Answer:
Plant and Animal
Explanation:
The others are not accurate
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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Thank you
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
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
during the charging process, the allied liquid becomes gas. What happens to particles in the liquid
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:
Eye Color
Genetic
O Environmental
O Both
Answer:
the first cause eye color is genetic
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 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 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.
2 points
There is a connection between photosynthesis and cellular respiration.
The products from one provide the raw materials for the other. This image
shows the relationship between the two processes. What products of
photosynthesis are starting material for cellular respiration? *
Answer:
glucose and oxygen
Explanation:
Glucose and oxygen are needed for cellular respiration to occur:)