A change in the state of matter is caused if enough _____ is added to or removed from an object.
Answers
Answer:
A change in the state of matter is caused if enough thermal energy is added to or removed from an object.
Related Questions
a claim about arrangements of electrons and properties within a family elements
Answers
A claim about the arrangements of electrons and properties within a family of elements is described below:
elements in the same family have the same number of outermost shell electronselements in the same family have similar chemical properties due to them having the same arrangements of electronsWhat are families of elements?Families of elements refer to elements that are found in the same group in the periodic table.
Elements that belong to the same family have the same arrangement of electrons.
The families of elements are found in the vertical columns knowns as groups. They have the same physical properties because they have the same number of e; electrons in their outermost shell.
For example, elements belonging to group 1 have one valence electron and show similarity in their chemical properties.
Learn more about families or groups of elements at: https://brainly.com/question/13870873
#SPJ1
HELP PLEASE!!!!!
An experiment calls for each student to use 3.50 g of sodium hydroxide.
There is only 78.2 g of sodium hydroxide remaining. How many students An experiment calls for each student to use 3.50 g of sodium hydroxide.
There is only 78.2 g of sodium hydroxide remaining. How many students
can complete the experiment?
Select one:
a. 22 students
b. 0 students
c. 78 students
d. 273 students
Answers
Answer:
22 students
Explanation:
i just answered it for a quiz and its correct
Need help Please ASAP
Answers
Which pair of reactants will undergo aldol condensation to produce methylvinyl ketone?
Answers
When formaldehyde and acetone then react with each other( aldol condensation) then it will be formed methyl vinyl ketone.
In organic chemistry, an aldol condensation would be a condensation reaction in which an enol and enolate ion combines with a carbonyl chemical to produce a -hydroxy aldehyde or -hydroxy ketone, that is then dehydrated to produce a conjugated enone.
In aldol condensation, when formaldehyde and acetone then react with each other then it will be formed methyl vinyl ketone.
It can be written as
\(CH_{2} O + CH_{3} COCH_{3}\) → \(HOCH_{2} -CH_{2} -CO-CH_{3}\)
When it will be heated then it gives methyl vinyl ketones.
\(HOCH_{2} -CH_{2} -CO-CH_{3}\) → \(CH_{2} =CH-CO-CH_{3}\)
So, the pair of reactants will be formaldehyde and acetone
To know more about aldol condensation
https://brainly.com/question/9415260
#SPJ4
list 3 substances that have atoms which are bonded.
Answers
Answer:
Carbon, Hydrogen, Oxygen, Nitrogen, and Sulfur.
(Those are all the ones I know)
Example of 3 substances that have bonded atoms are :
Water ( H₂0 )Calcium Oxide ( CaO )Table salt ( NaCl )Substances that have chemically bonded atoms are generally known as molecules, while a compound is a substance made up by the chemical bonding of different atoms from different elements. there are some readily available substance in nature that have bonded atoms like ; water and Table salt.
Hence we can conclude that three ( 3 ) examples of substances that have bonded atoms are ; Water, Calcium Oxide and Table salt.
Learn more : https://brainly.com/question/21700212
Which statement is true about your mass
A: you would have less mass on the moon
B:you would have less mass on earth
C: you would have more mass on earth
D: you would have the same mass on the earth and moon
Answers
b. Calculate The number of moles of hydrochloric acid in 10 mL of 6.0 M HCI; 6,0 M HCl contains 6 moles
of HCI per liter of solution.
Answers
Answer:
hydrochloric acid has a molar mass of
36.46 g/mol
, which means that the
164-g
sample will contain
164
g
⋅
1 mole HCl
36.46
g
=
4.498 moles HCl
As you know, molarity is defined as moles of solute, which in this case is hydrochloric acid, divided by liters of solution
molarity
=
moles of solute
liters of solution
A
6.0-M
hydrochloric acid solution will contain
6
moles of hydrochloric acid for every liter of solution. This means that
4.498
moles will come with a volume of
c
=
n
V
⇒
V
=
n
c
V
=
4.498
moles
6.0
moles
L
=
0.7497 L
The number of moles of hydrochloric acid in 10 mL of 6.0 M HCI is 0.06 mol.
Number of moles of the hydrochloric acidThe number of moles of hydrochloric acid in 10 mL of 6.0 M HCI is claculated as follows;
Molarity = number of moles / Volume of the solution (L)
where;
volume of the hydrochloric acid = 10 mL = 0.01 LMolarity of the hydrochloric acid = 6 MNumber of moles = 0.01 x 6
Number of moles = 0.06 mol.
Thus, the number of moles of hydrochloric acid in 10 mL of 6.0 M HCI is 0.06 mol.
Learn more about number of moles here: https://brainly.com/question/15356425
3 mL has 8 mg in it how many milligrams are in 10 mL
Answers
Answer:
there are about 26.67 milligrams in 10 mL.
Explanation:
To find the number of milligrams in 10 mL, you can use the proportion:
(8 mg) / (3 mL) = (x mg) / (10 mL)
Where x is the number of milligrams in 10 mL. To solve for x, you can cross-multiply and divide:
(8 mg) * (10 mL) = (3 mL) * (x mg)
x = (8 mg) * (10 mL) / (3 mL)
x = 26.666.. mg
Relative Strengths of oxyacids and Amines < 9 of 11 > Bases act as hydrogen ion acceptors because of the unshared electron pairs in their structure. Any group present in a base that withdraws electrons makes these electron pairs less available to accept a hydrogen ion. In contrast, any group that can act as an electron donating group such as hydrocarbon groups (usually represented as R) can increase the base strength. Thus, the addition of electronegative atoms or groups of atoms to the structure of a base decreases the base strength and electron donating groups increase base strength. Many common weak bases are derivatives of ammonia, in which H atom(s) of NH3 are replaced with other groups. Part B Arrange the following amines in order of decreasing base strength. Rank from strongest to weakest base. To rank items as equivalent, overlap them. View Available Hint(s) Reset Help NH3 (CH3)2NH CH3NH, NH,Br Strongest base Weakest base The correct ranking cannot be determined. Submit Previous Answers Request Answer
Answers
To rank the following amines in order of decreasing base strength: NH₃ > (CH₃)₂NH > CH₃NH₂ > NH₂Br.
The order of base strength is determined by the availability of the lone pair of electrons on the nitrogen atom, which can be donated to form a bond with a proton (H⁺).
NH3 has the highest base strength because it has the most electron-donating groups (three hydrogens) attached to the nitrogen atom, making the lone pair of electrons more available.
(CH₃)₂NH is the next strongest base because it also has two electron-donating methyl groups attached to the nitrogen atom.
CH₃NH₂ has only one electron-donating methyl group, so it is weaker than (CH₃)₂NH.
NH₂Br is the weakest base because the electronegative bromine atom withdraws electron density from the nitrogen atom, making the lone pair of electrons less available.
Therefore, the correct ranking from strongest to weakest base is:
NH₃ > (CH₃)₂NH > CH₃NH₂ > NH₂Br.
To know more about amines here
https://brainly.com/question/30201990
#SPJ4
Calculate the displacement of an object that traveled 4m east, turned 90 degrees, and traveled 5m north.
Answers
The displacement of an object that traveled 4m east , turned 90 degress and traveled 5m north is 6.40 m
Displacement of an object is defined as the change in position of the object. displacement is the vector quantity , which means it has magnitude as well as direction.
In the give case an object first traveled east 4m and then turn 90 degree an traveled 5m north , so, it makes a right angled triangle .
by applying Pythagoras's theorem to the triangle we get
displacement = \(\sqrt{(4m)^{2} + (5m)^{2} }\)
= \(\sqrt{16 + 25}\) m
= \(\sqrt{41}\) m
= 6.40 m
Thus,The displacement of an object that traveled 4m east , turned 90 degress and traveled 5m north is 6.40 m.
To learn more about Displacement here
https://brainly.com/question/8606655
#SPJ4
I have a homework and I need help please.
Answers
Answer:
yeah we cant see it
Explanation:
What kind of intermolecular forces are involved in water dimer formation?
Answers
Hydrogen bonds are the intermolecular forces responsible for the production of water dimers.
Intermolecular forces: What are they?Between molecules, intermolecular forces are at work. In contrast, molecules themselves exert intramolecular pressures. In comparison to intramolecular forces, intermolecular forces are weaker. The London dispersion forces, dipole-dipole interactions, ion-dipole interaction, & van der Waals forces are a few examples of intermolecular forces.
How do states of matter respond to intermolecular forces?The equilibrium between the intermolecular interactions and a kinetic energy of a specific particles (atoms or molecules) determines the state of a material. The kinetic energy, which is dependent on the substance's temperature, maintains the molecules separated and in motion.
To know more about intermolecular force visit :
https://brainly.com/question/13479228
#SPJ4
A loan is being repaid by 2n level payments, starting one year after the loan. Just after the nth payment the borrower finds that she still owe (3/4) of the original amount. What proportion of the next payment is interest?
Answers
A loan is being repaid by \(2n\) level payments, starting one year after the loan. Just after the nth payment the borrower finds that she still owe \((3/4)\)of the original amount. The proportion of the next payment that is interest is \(1 - 2 * (1 - (1 + r)^{(-n)}) / (3 * (1 - (1 + r)^{(-2n)})).\)
Let \(P\) be the original amount of the loan, and let \(x\) be the level payment made at each of the \(2n\) payments. Then the total amount repaid will be \(2nx\). We know that after \(n\) payments, the borrower still owes \((3/4)P\).
Therefore, the amount repaid after \(n\) payments is \((P - (3/4)P) = (1/4)P\). This means that the total amount repaid after the remaining \(n\) payments is \((3/4)P\).
We can set up an equation using the formula for the present value of an annuity:
\(P = x * (1 - (1 + r)^{(-2n)}) / r\)
where \(r\) is the interest rate per payment period (which we will assume is constant), and the first payment is due one year after the loan.
After \(n\) payments, the outstanding balance is \((3/4)P\). We can use the same formula to find the present value of the remaining \(n\) payments, but with \(P\) replaced by \((3/4)P\):
\((3/4)P = x * (1 - (1 + r)^{(-n)}) / r\)
We can rearrange this equation to solve for \(x\):
\(x = (3/4)P * r / (1 - (1 + r)^{(-n)})\)
Now we need to find the proportion of the next payment that is interest. The interest component of each payment is the difference between the total payment and the amount of principal being repaid. The total payment is \(x\), and the amount of principal being repaid is:
\((3/4)P * r / (1 - (1 + r)^{(-n)})\).
So the proportion of the next payment that is interest is:
Interest component / Total payment
\(= (x - (3/4)P * r / (1 - (1 + r)^{(-n)})) / x\\= 1 - (3/4)P * r / (x * (1 - (1 + r)^{(-n)}))\\= 1 - (3/4)P / (2nx * (1 - (1 + r)^{(-n)}))\\\)
We can simplify this expression by using the equation we derived earlier for \(x\):
\(1 - (3/4)P / (2nx * (1 - (1 + r)^{(-n)}))\\= 1 - (3/4)P / ((3/2)P * r / (1 - (1 + r)^{(-n)}) * (1 - (1 + r)^{(-2n)}))\\= 1 - 2 * (1 - (1 + r)^{(-n)}) / (3 * (1 - (1 + r)^{(-2n)}))\)
So the proportion of the next payment that is interest is:
\(1 - 2 * (1 - (1 + r)^{(-n)}) / (3 * (1 - (1 + r)^{(-2n)})).\)
Learn more about Interest at
brainly.com/question/30393144
#SPJ4
21) Technetium-99 is a nuclear isomer that is used in tens of millions of medical diagnostic procedures annually and has a half-life of six hours. Suppose you have a 100mg sample of Technetium-99. a) Write a function that models the sample. b) Approximate how much of the sample will be remaining after one day. 4
Answers
After one day, approximately 8.67mg of the sample will be remaininga) The function that models the sample of Technetium-99 is given by
f(t) = P₀e^(-kt)
Where,P₀ = initial quantity = 100mgk = decay constantt = timef(t) = remaining quantity after t time.
A half-life of 6 hours is given. The decay constant can be found using the half-life formula:
T½ = (ln 2)/k6
= (ln 2)/kk
= (ln 2)/6f(t)
= P₀e^(-kt)f(t)
= 100e^(-0.1155t)mg
b) After one day, 24 hours = 4 half-lives Remaining amount,
f(t) = P₀e^(-kt)f(24)
= 100e^(-0.1155 × 24)
= 100e^(-2.772)
≈ 8.67mg
After one day, approximately 8.67mg of the sample will be remaining. The function that models the sample is
f(t) = 100e^(-0.1155t), where t is time in hours and f(t) is the remaining quantity in milligrams.
To know more about Technetium-99 visit:-
https://brainly.com/question/29970596
#SPJ11
After one day, approximately 8.67mg of the sample will be remaininga) The function that models the sample of Technetium-99 is given by
f(t) = P₀e^(-kt)
Where,P₀ = initial quantity = 100mgk = decay constantt = timef(t) = remaining quantity after t time.
A half-life of 6 hours is given. The decay constant can be found using the half-life formula:
T½ = (ln 2)/k6
= (ln 2)/kk
= (ln 2)/6f(t)
= P₀e^(-kt)f(t)
= 100e^(-0.1155t)mg
b) After one day, 24 hours = 4 half-lives Remaining amount,
f(t) = P₀e^(-kt)f(24)
= 100e^(-0.1155 × 24)
= 100e^(-2.772)
≈ 8.67mg
After one day, approximately 8.67mg of the sample will be remaining. The function that models the sample is
f(t) = 100e^(-0.1155t), where t is time in hours and f(t) is the remaining quantity in milligrams.
To know more about Technetium-99 visit:-
https://brainly.com/question/29970596
#SPJ11
Complete combustion of a 0.350 g sample of a compound in a bomb calorimeter releases 14.0 kJ of heat. The bomb calorimeter has a mass of 1.20 kg and a specific heat of 3.55 J/(gi°C).
If the initial temperature of the calorimeter is 22.5°C, what is its final temperature?
Use q equals m C subscript p Delta T..
19.2°C
25.8°C
34.2°C
72.3°C
Answers
The compounds in a calorimeter releases 14.0 kJ of heat, but the heat it also generates will be equivalent to the heat the calorimeter gains.
Mass, specific heat, and temperature change are all components of heat energy.
Thus, 14000 J equals 1200 g times 3.55 (x-22.5) 14000 equals 4260 (x-22.5) x-22.5 equals 3.286 x, which equals 25.786 25.9
This means that the final temp is 25.8 °C.
What is the purpose of a calorimeter?The volume & heat is produced during a specific time period are measured using calorimeters. The flow is then routed through a tank that contains some water that has been pre-weighed and thermally characterized.
To know more about Calorimeter visit:
https://brainly.com/question/4802333
#SPJ1
Plsss help meeeee I will make you as barin
Answers
PESTLE and SWOT analysis for Harvard case CLEAN EDGE RAZOR: SPLITTING HAIRS IN PRODUCT POSITIONING.
Answers
The PESTLE and SWOT analyses provide a comprehensive assessment of the external and internal factors influencing the Harvard case "Clean Edge Razor: Splitting Hairs in Product Positioning."
The PESTLE analysis examines the external factors that may impact the case. Politically, regulations on product safety and environmental sustainability could affect the razor industry. Economically, consumer purchasing power and economic trends may impact the demand for high-end razors. Sociocultural factors, such as grooming habits and preferences, influence consumer behavior. Technological advancements, such as electric razors and online shopping, pose opportunities and challenges. Legal factors include intellectual property rights and advertising regulations. Environmental considerations involve sustainability and eco-friendly practices.
The SWOT analysis evaluates the internal strengths and weaknesses of the case. Strengths may include the Clean Edge brand reputation and innovative product features. Weaknesses could involve high manufacturing costs or limited market presence. Opportunities may arise from market growth and expanding into new segments. Threats may come from intense competition and changing consumer preferences.
By conducting both analyses, the case can gain insights into the broader industry landscape, identify potential risks and opportunities, and assess its own internal capabilities. This holistic understanding aids in making informed decisions and formulating effective strategies for positioning the Clean Edge Razor product.
Learn more about environmental sustainability here:
https://brainly.com/question/28602390
#SPJ11
Also need help with this question .. ik I’m asking a lot, I’m very confused
Answers
Answer:
see the pic for the answer
i have exams coming up for science.
can yall help me with study ideas?
(I'm in 7th grade)
I WILL VOTE YOU BRAINLIEST IF YOU ANSWER FIRST!!!
Answers
Answer:
flashcards, if its the periodic table write out the elements in order
just read the material over and over again
Explanation:
based on the solubility product for calcium carbonate, how much calcium (mg/l as caco3) should be soluble in this water? is the water under-saturated or over-saturated with respect to calcium?
Answers
The solubility product of Calcium Carbonate is 15mg/l hence is insoluble in water and the water is under-saturated with respect to calcium.
Calcium Carbonate is only slightly soluble in water. The solubility product is 4.4 × 10⁻⁹, indicating that if equal concentrations of calcium and carbonate are formed only 6.8mg/l of calcium carbonate would be soluble. Thus determined by the data, the water saturation with respect to calcium is under-saturated.
Langelier Saturation Index Complex (LSI) is the indicator of the degree of saturation of calcium carbonate in water. The under-saturated water effect is the result of the Langelier Saturation Index Complex(LSI) that is negative, hence states that there will be corrosion of pipings.
Learn more about Solubility here https://brainly.com/question/23946616
#SPJ4
How many manganese atoms are in each formula unit of potassium permanganate?
Answers
for the oxidation–reduction reaction equation4ga p4⟶4gap indicate how many electrons are transferred in the formation of one formula unit of product.electrons:
Answers
For the given oxidation–reduction reaction equation4Ga + P₄ ⟶ 4GaP, the number of electrons transferred in the formation of one formula unit of product is 4. The oxidation-reduction reaction equation involves the transfer of electrons from one element to another during the course of a reaction.
In the product, gallium phosphide (GaP), gallium has an oxidation number of -3 and phosphorus has an oxidation number of +3. Therefore, gallium is gaining 3 electrons from each phosphorus atom, for a total of 12 electrons transferred for 4 formula units of product or 3 electrons transferred per one formula unit of product. In the reaction 4Ga + P₄ ⟶ 4GaP, gallium (Ga) is being reduced, which means it is gaining electrons, while phosphorus (P) is being oxidized, which means it is losing electrons. During a redox reaction, the number of electrons lost by one element must equal the number of electrons gained by the other element.
Therefore, we can determine the number of electrons transferred by finding the difference in oxidation numbers of the elements before and after the reaction. Phosphorus has an oxidation number of 0 in its elemental form, while gallium has an oxidation number of +3. In the product, gallium phosphide, gallium has an oxidation number of -3 and phosphorus has an oxidation number of +3. Therefore, each gallium atom has gained 6 electrons, while each phosphorus atom has lost 3 electrons.4Ga + P₄ ⟶ 4GaP
Ga: +3 → -3 (gains 6 electrons)P: 0 → +3 (loses 3 electrons)To find the number of electrons transferred per one formula unit of product, we need to consider that each formula unit of GaP contains one gallium atom and one phosphorus atom. Therefore, we can say that each gallium atom gains 3 electrons from each phosphorus atom, for a total of 12 electrons transferred for 4 formula units of product. To find the number of electrons transferred per one formula unit of product, we simply divide this value by 4.4 electrons are transferred in the formation of one formula unit of GaP.
To know more about oxidation–reduction reaction, refer
https://brainly.com/question/13892498
#SPJ11
I’ll give brainliest if you can explain as well pls
Answers
one is not Ne.
1. Oxygen, with the chemical symbol O.
Which sample is most likely to take the shape and total volume of its container?
water Salt water solution
lce
Steam
Answers
Answer:
steam
Explanation:
steam because of its volume and condensation
N2+3H2->2NH3
If 0.600 moles of NH3 were produced. How many moles of H2 is required
Answers
If 0.6 moles of \(NH_3\) were produced from the reaction, the mole of \(H_2\) that is required will be 0.90 moles.
Stoichiometric problemFrom the equation of the reaction, the mole ratio of \(H_2\) that reacts to that of \(NH_3\) that is produced is 3:2.
In other words, for every 1 mole of \(NH_3\) that is produced, 1.5 moles of \(H_2\) is required.
Now, if 0.600 moles of \(NH_3\) were produced from the reaction, the amount of \(H_2\) that is required can be calculated from a simple ratio as thus:
1 mole of \(NH_3\) = 1.5 moles of \(H_2\)
0.600 moles of \(NH_3\) = 1.5 x 0.600/1
= 0.90 moles of \(H_2\)
In other words, if 0.600 moles of \(NH_3\) were produced in the reaction, 0.90 moles of \(H_2\) would be needed to react.
More on stoichiometric problems can be found here: https://brainly.com/question/15047541
#SPJ1
6. Although Inigo and the masked man are rivals, they actually have a lot
in common.
Give three examples from the swordfighting scene that show their
similarities.
Answers
The three (3) examples from the sword fighting scene that showed Inigo and the masked man's similarities are:
They can fight with both hands.They are both professional swordsmen. Inigo and the masked man discussed about their life.Who is Inigo?Inigo Montoya was one of the fictional character in the novel titled "The Princess Bride" and written by William Goldman's in 1973. Inigo hails from the village called Arabella and he was raised by his father Domingo Montoya, who was a master craftsman that makes sword.
In The Princess Bride, Inigo had a swordfight with a man in black (masked man) and they have the following things in common:
They can fight with both hands.They are both professional swordsmen. Inigo and the masked man spoke about their personal life.Read more on Inigo here: https://brainly.com/question/1130107
URGENT:
Do you switch charges for ionic or covalent bonds when naming them?
Answers
Answer:
ionic
Explanation:
with the above information and your knowledge of alkenes, select the statements that are TRUE. 1-Butene is the most stable compound. 2-Methyl-i-propene is the most stable compound. 1-Butene is the least stable compund. 2-Methyl-i-propene is the least stable compound. The more carbon atoms attached to the double bond, the more stable the alkene, A trans isomer is less stable than a cis isomer due to more steric hindrance. sp2 hybridized carbon atoms are more electronegative than sp^3? hybridized atoms.
Answers
The 2-Methyl-1-propene is the most stable compound This is true because it has more substituents (alkyl groups) attached to the double bond, which increases its stability due to the electron-donating effect of the alkyl groups. This makes sp2 hybridized carbon atoms more electronegative.
The 1-Butene is the least stable compound This is true because it has fewer substituents attached to the double bond compared to 2-Methyl-1-propene, making it less stable. The more carbon atoms attached to the double bond, the more stable the alkene This statement is true as well. Alkenes with more carbon atoms attached to the double bond have increased stability due to the electron-donating effect of the alkyl groups. A trans isomer is less stable than a cis isomer due to more steric hindrance: This statement is false. In general, trans isomers are more stable than cis isomers because they have fewer steric hindrances and lower energy conformations. sp2 hybridized carbon atoms are more electronegative than sp3 hybridized atoms: This statement is true. sp2 hybridized carbon atoms have a greater proportion of "s" character (33% s-character and 67% p-character) than sp3 hybridized carbon atoms (25% s-character and 75% p-character). This makes sp2 hybridized carbon atoms more electronegative.
learn more about carbon atoms here.
https://brainly.com/question/30507533
#SPJ11
b. Are all options for C3H6O the same molecules which will have the same physical properties and chemical reactivities? Explain your reasoning. Is there a better way to communicate which isomer you are referring to than "C3H6O?
Answers
Answer:
YES
Explanation:
If a gas has a volume of 1.25 l at a temperature of 300 k, what will the volume change to if the container is cooled to 200k
Answers
The volume of the gas when the container is cooled from a temperature of 300 K to 200 K is 0.83 L
Charles' law
Charles' law states as follow:
V₁ / T₁ = V₂ / T₂
Where
V₁ is the initial volume T₁ is the initial temperature V₂ is the new volume T₂ is the new temperature How to determine the new volumeFrom the question given above, the following data were obtained
Initial volume (V₁) = 1.25 LInitial temperature (T₁) = 300 KNew temperature (T₂) = 200 KNew Volume (V₂) =?V₁ / T₁ = V₂ / T₂
1.25 / 300 = V₂ / 200
Cross multiply
300 × V₂ = 1.25 × 200
Divide both side by 300
V₂ = (1.25 × 200) / 300
V₂ = 0.83 L
Learn more about gas laws:
https://brainly.com/question/6844441