Answers
Answer:Number 2 might be the second one
Explanation:
2. A liquid has a definite mass (all of the common states of matter have definite mass) and it has a definite volume: The particles of a given mass of liquid will occupy the same amount of space regardless of the shape of the liquid’s container; it likewise follows that a liquid does not have a definite shape. So, while one liter of water can fill and take the “shape” of a bowl or a bottle, there will always be one liter of water in each. So, the correct answer here would be the fourth answer choice.
3. A solid has a definite mass, a definite shape, and a definite volume precisely because its particles are not free to zip around freely (or rapidly). So the fourth statement is not true, and thus the fourth answer choice would be the correct answer here.
Related Questions
i need helpppp
blank 1:
blank 2:
blank 3:
blank 4:
Answers
Answer:
Fe₂(SO₄)₃ + 6KOH —> 3K₂SO₄ + 2Fe(OH)₃
The coefficients are: 1, 6, 3, 2
Explanation:
__Fe₂(SO₄)₃ + __KOH —> __K₂SO₄ + __Fe(OH)₃
To determine the correct coefficients, we shall balance the equation. This can be obtained as follow:
Fe₂(SO₄)₃ + KOH —> K₂SO₄ + Fe(OH)₃
There are 2 atoms of Fe on the left side and 1 atom on the right side. It can be balance by writing 2 before Fe(OH)₃ as shown below:
Fe₂(SO₄)₃ + KOH —> K₂SO₄ + 2Fe(OH)₃
There are 6 atoms of OH on the right side and 1 atom on the left side. It can be balance by writing 6 before KOH as shown below:
Fe₂(SO₄)₃ + 6KOH —> K₂SO₄ + 2Fe(OH)₃
There are 6 atoms of K on the left side and 2 atoms on the right side. It can be balance by writing 3 before K₂SO₄ as shown below:
Fe₂(SO₄)₃ + 6KOH —> 3K₂SO₄ + 2Fe(OH)₃
Now, the equation is balanced.
Therefore, the coefficients are: 1, 6, 3, 2
why can molar mass be used as a conversion factor
Answers
From the relative atomic mass of each element, it is possible to determine each element's molar mass by multiplying the molar mass constant (1 g/mol) by the atomic weight of that particular element. The molar mass value can be used as a conversion factor to facilitate mass-to-mole and mole-to-mass conversions.
Answer:
A substances molar mass is determined by increasing its relative nuclear mass by the molar mass constanttt (1 g/mol). So the molar mass consistent can be utilized to change mass over to moles. So by duplicating a given mass by the molar mass, the measure of moles of the substance can be determined.
Explanation:
From the general nuclear mass of every component, it is feasible to decide every component's molar mass by duplicating the molar mass steady (1 g/mol) by the nuclear load of that specific element.The molar mass worth can be utilized as a change factor to work with mass-to-mole and mole-to-mass transformations.
Brainliest?
Tetrachloroethene, C2C14 is a solvent used in many dry cleaning processes.
Write the empirical formula for tetrachloroethene.
Answers
An empirical formula presents the atoms of all the elements with the most simplified whole number ratios. In other words, divide each subscript by their greatest common factor.
The greatest common factor of 2 and 4 is 2.
2/2 = 1
4/2 = 2
So, the empirical formula for tetrachloroethene is CCl₂.
A wave traveling through air meets an object and bounced off its flat surface
at a new angle. Which statement best describes what has happened to the
wave?
A. The object reflected the wave.
B. The object caused the wave to refract.
C. The object absorbed the wave's energy.
D. The object had a slit in its surface that diffracted the wave.
SUBMIT
Answers
When a wave moves through the air and comes into contact with an object, it hits its flat surface from a new angle, causing the wave to refract.
When a wave passes through one material and moves through another, how does its direction change?When waves cross the boundary between two different materials, their speed changes. For example, light waves refract when they pass through glass to air. Refraction is the effect that causes them to change direction as a result. When water waves move from deep water to shallow water (or the other way around), they refract light.
When a wave traveling through the air comes into contact with an object and bounces off its flat surface, what happens?
When waves bounce back from a surface they can't pass through, this is called reflection. When waves enter a new medium at an angle and begin traveling at a different speed, refraction occurs. Diffraction happens when waves spread out as they travel around impediments or through openings in obstructions.
To know more about wave visit :-
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A shampoo has a pH of 8.59. What is the [H3O+] in the shampoo?
Answer in units of M.
(part 2) What is the [OH−] in the shampoo?
Answer in units of M.
Answers
Answer:
2.57 e-9
Explanation:
The formula is H3O=10^-Ph
10^-8.59=2.57 e-9
(iii) Explain the following statements about drugs:
a. You can be arrested by the police for possessing heroin
b.All drugs are dangerous.
Answers
Answer:
A
Explanation:
Heroine destroying the body system
What amount of heat is released when the temperature of 450.0 g of a
substance drops by 7.1 °C? Assume that the specific heat = 1.264 J/g.°C
Answers
Answer:
[tex]\boxed {\boxed {\sf 4038.48 \ Joules}}[/tex]
Explanation:
Since we are given the mass, specific heat, and change in temperature, we should use this formula for heat:
[tex]q=mc\Delta T[/tex]
The substance's mass is 450.0 grams, the specific heat is 1.264 J/g°C, and the change in temperature is 7.1 °C.
[tex]m= 450.0 \ g \\c= 1.264 \ J/g \textdegree C\\\Delta T= 7.1 \ \textdegree C[/tex]
Substitute the values into the formula.
[tex]q= (450.0 \ g)(1.264 \ J/g \textdegree C)(7.1 \ \textdegree C)[/tex]
Multiply the first 2 values together. The grams will cancel out.
[tex]q= 568.8 \ J/ \textdegree C (7.1 \ \textdegree C)[/tex]
Multiply again. This time, the degrees Celsius cancel out.
[tex]q= 4038.48 \ J[/tex]
4038.48 Joules of heat energy are released.
Calculate the volume in mL of 53.2 g of .251M solution of HCl.
Answers
Answer:
5.813 mL
Explanation:
You need to use the formula : vol = mass / molar mass x molarity
the molar mass of HCl is 36.46 and the problem gives you the rest of the equation
0.251M x 36.46 = 9.151
53.2g / 9.151 = 5.813 mL
*I don't know some of the units so that's why some of them are blank sorry
*I'm also sorry if this is wrong but it's what I did so..
4.6 moles of a gas are at a temperature of 325 K and a volume of 96.8 L, what is the pressure of the gas
Answers
Answer:
1.27atm is the pressure of the gas
Explanation:
Using combined gas law, we can find the pressure of a gas with the moles, temperature and volume of the gas. The formula is:
PV = nRT
P = nRT / V
Where P is pressure in atm
n are the moles of the gas: 4.6 moles
R is gas constant: 0.082tamL/molK
T is absolute temperature: 325K
V is volume: 96.8L
Replacing:
P = 4.6mol*0.082atmL/molK*325K / 96.8L
P = 1.27atm is the pressure of the gas
For a reaction which change can increase the rates of reaction?
Answers
Answer:
temperature!!!
Explanation:
Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.
Tara is performing a chemical experiment, at one point she needed to know whether the solution is acidic or basic so she used the PH meter to measure the solution. She got a reading of 13.4,
1. Is the solution acidic or base? Explain why.
2. What will happen to the PH when she will add water to the solution?
Answers
It is a base because its pH is greater than 7
(not sure about the second sorry!)
Find the concentration of a sample of chlorous acid if 35.5 mL
of 0.120 M NaOH is needed to titrate 10.0 mL of the acid.
M
Answers
Answer: 71
Explanation:the is not correcy
Answer: 0.426
I don’t know how to explain
1.
What is the molarity of a 3.6 L solution with 104 g of sucrose?
Answers
Answer:
.084 M
Explanation:
Molar mass of sucrose = 342.3
The formula to find molarity is moles of solute / liters of solution
Since we need to turn grams to moles for this equation we do 104 / 342.3 = 0.304
Now we can use the equation listed above. .304 / 3.6 = 0.084 M
?
9. Oxygen will have a positive oxidation number
when combined with
(1) fluorine
(3) bromine
(2) chlorine
(4) iodine
in
Answers
Answer:
Flourine
Explanation:
Oxidation number will be +1 for oxygen and -1 for Flourine
Balance the following chemical
equation by providing the correct
coefficients.
Answers
Answer:
1 Pb(NO3)2 + 1 Na2CrO4 -> 1 PbCrO4 + 2 NaNO3
what is the wavelength of a photon with an energy of 3.38 x 10-19J?
Answers
Answer:
C. 588 nm
Explanation:
Answer:
588 mm
Explanation:
PLEASE HELP SOMEONE PLEASEEEE
Answers
Answer:
the answer is b
hope this helps you!!
Have a lovely day!
-millie :D
A helium balloon with a volume of 5.0 L and a pressure of 105 kPa at 25°C floats up high in the sky where the pressure is 850 mm Hg and the temperature is -15°C. What is the new volume of the balloon?
Answers
Answer:
volume 2- 4.011 L
Explain what is happening during a redox reaction.
Answers
Answer:
Redox is a sort of compound response where the oxidation conditions of particles are changed. Redox responses are described by the real or formal exchange of electrons between substance species, frequently with one animal groups going through oxidation while another species goes through decrease
Explanation:
Brainliest?
1. Molarity of 2.6 moles of NaCl in 2.4 L solution of HOH
2. What is the molarity of a 514 mL solution with 0.46 mol of HSO4
3. What is the molarity of a 1000 mL solution with 12.5 mol of NaOH
4. What is the molarity of a solution of 32.5 grams of KCl in 3.5 L of HOH.
5. What is the molarity of a solution with 84.2 g of CuSO4 in 21,612.2 mL of HOH
6. Molarity of 2.2 g of HCl in 61.2 mL of HOH
7. What is the molarity of 241.8 g Fe2O3 in 500 mL of HOH.
All answers need to be rounded to the nearest 0.01
Answers
Answer:
Explanation:
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How many poles does a magnet have?
Answers
Find the number of Grams
Show all the steps you did to arrive at your answer.
4.00 moles of Cu(CN)2
Answers
Answer: 462 g
Explanation:molar mass is M= 63.55 +2·(12.01+14.01)= 115.59 g/mol.
Mass m= n·M = 4.0 mol·115.59 g/mol= 462.36 g
What is Niels Bohr’s Theory
Answers
What are the 3 main types of clouds?
Answers
Answer:
Cumulus, Cirrus, and Stratus
Explanation:
So Cumulus Clouds are those puffy-shaped clouds, the ones that look the most solid like you could just walk on them. Cirrus are those wispy clouds that are often very high up. And Stratus Clouds are the low clouds that often cover the entire sky.
hope this helps:)
When two solutions are combined, what evidence would show a chemical
reaction has occurred? *
temperature remains constant
a precipitate forms
volume increases
Answers
explain what thermal energy is and use real life examples to support your explanation (science)
Answers
Answer:
boiling water on a stove is an example of thermal energy thermal energy produced when the atoms and molecules is in a substance vibrate faster due rise in temperature .
PLEASE mark brainlest ......... please
I WILL Give BRAINLIST Unlike protists, organisms in the group Animalia
A
have cells with no cell wall and have an organ system.
B
have cells with a cell wall and are heterotrophic.
C
are complex and photosynthetic.
D
are all mobile and autotrophic.
Answers
Answer:
B
Explanation:
B
have cells with a cell wall and are heterotrophic
HELP! What are 5 changes for testing out a fidget spinner no websites
Answers
Answer:
Explanation:
Can you explain a bit further? once u do, ill edit my answer and tell you :) But to use a fidget spinner, u have to put ur thumb at the bottom and index finger at the top, and spin it with you other fingers if thats what you meant
Balance the following equation:
[?]Na2SO4(aq) + [?]CaCl2(aq)-> [?]CaSO4(s) + [?]NaCl(aq)
(fill in the [?])
Answers
3.
Which quantity of salt will form an
unsaturated solution in 100 g of water
at 50°C?
(1) 43 g of KCI
(2) 50 g of NH4Cl
(3) 100 g of KNO,
(4) 116 g of NaNO,
Answers
Answer:
Option D, 116 g of NaNO3
Explanation:
An unsaturated solution is the one in which the amount of salt dissolved in more than the maximum amount of salt that can be dissolved in it.
At 50 degree Celsius, 37 grams of salt can be dissolved in 100 ml of water. Hence, 116 gram of salt is the correct answer