Answer:
477 ºC
Explanation:
on an isobaric process, an increase on the volume implies an increase on the temperature:
V1/T1 = V2/T2
T2 = V2T1/V1 = 15.0 L×150 K/3.00 L = 750 K
t/ºC = T/K - 273 = 750 K/K - 273
t = 477 ºC
V1: initial volume
T1: initial temperature
V2: final volume
T2: final temperature
Calculate the mass of an object that has a density of 3.52g/cm^3 and
a volume of 5000 cm^3. Note that Mass = Volume X Density
Answer:
17.6kg
Explanation:
mass = Volume × Density
mass = 5000cm^3 × 3.52g/cm^3
mass = 17600g = 17.6kg
Which organism in a food web would be best described as a recycler?
O A.
Cottontail rabbit
B.
Termite
C.
Fungi and bacteria
D.
Red fox
C,
takes dead things, makes them into other things
1. If CO2 is being produced in the solution at a faster rate than H2CO3, is the rate of the forward or reverse reaction faster?
Answer:
I believe that it would be faster but the reaction would not happen immediately. It would take a long time for the effect to start kicking in but it will definitely speed up the process of CO2 being released into our atmosphere.
Explanation:
If CO₂ is being produced in the solution at a faster rate than H₂CO₃, then the rate of the forward reaction is faster.
What is the rate of a reaction?Rate of any reaction tells about the duration of the completion of reaction to produce products.
Given chemical reaction is written as:
H₂CO₃ ⇄ CO₂ + H₂O
In the question it is given that CO₂ is produced at the faster rate, and it is the product of the forward reaction. So, we conclude that rate of forward reaction is faster.
Hence, the rate of forward reaction is faster.
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pls help me guys please please only 1 question choose
Answer:
D.4 types of molecules is yr ans.
stay safe healthy and happy.
what determines the identity of a substance?
proton
neutron
electron
photon
Answer:Typically, the identity of a substance can be described by a: chemical name, for example, benzene; number, for example, EC number 200-753-7, and.
Explanation:chemical composition, for example, >99 % benzene and <1 % toluene. The composition is determined by chemical analysis.
Answer:
proton
Explanation:
thats what my bio teacher just said
Na2O H2 --> 2Na H2O A student performed the above reaction in the lab, and obtained an actual yield of 3.9 grams of H2O. He calculated a theoretical value of 4.2 grams of H2O. Calculate the percent yield of the reaction.
Answer:
Percentage yield = 92.86%
Explanation:
We are given;
Actual yield = 3.9 grams
Theoretical yield = 4.2 grams
Formula for percent yield is;
% yield = (actual yield/theoretical yield) × 100%
Thus;
% yield = (3.9/4.2) × 100%
% yield = 92.86%
how do you start a hypothesis in science which includes scientific words and information which is on how much sugar can dissolve in water using the temperature of the solvent which is the water?
Answer: If ... Then... Because...
Explanation: if I water this plant twice a day then it will grow 3 feet because the more water it gets the bigger it grows
3. Svante Arrhenius developed a definition of acids and bases
which stated...
A. acids produce OH+ ions and bases produce H ions
B. acids produce H+ ions and bases produce OH ions
STAT
C. acids and bases are the same
D. acids have a high pH and bases have a low pH
pls help
btw any links will be reported.
In your OWN words, what is the difference between a solute, solvent and solution?
Answer:
could u all help me??
Who was Agamemnon trying to persuade to come fight with him again?
Patroclus
Achilles
Odysseus
Hector
Explanation:
The chemical equation below shows the burning of magnesium (Mg) with oxygen (O2) to form magnesium oxide
(Mgo)
2Mg + O2 → 2Mgo
The molar mass of Oz is 32.0 g/mol. What mass, in grams, of Oz is required to react completely with 4.00 mol of Mg?
2.00
64.0
128
256
Answer:
64
Explanation:
B
How many grams of CO2 are produced from 6.7 L of O2 gas at STP?
13 g CO₂
General Formulas and Concepts:Chemistry
Atomic Structure
Reading a Periodic TableMolesSTP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 KStoichiometry
Using Dimensional AnalysisMath
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right Explanation:Step 1: Define
Identify variables
[Given] 6.7 L O₂
[Solve] g O₂
Step 2: Identify Conversions
[STP] 22.4 L = 1 mol
[PT] Molar Mass of O: 16.00 g/mol
[PT] Molar Mass of C: 12.01 g/mol
Molar Mass of CO₂: 12.01 + 2(16.00) = 44.01 g/mol
Step 3: Convert
[DA] Set up: [tex]\displaystyle 6.7 \ L \ O_2(\frac{1 \ mol \ O_2}{22.4 \ L \ O_2})(\frac{44.01 \ g \ O_2}{1 \ mol \ O_2})[/tex][DA] Divide/Multiply [Cancel out units]: [tex]\displaystyle 13.1637 \ g \ O_2[/tex]Step 4: Check
Follow sig fig rules and round. We are given 2 sig figs.
13.1637 g CO₂ ≈ 13 g CO₂
If a car speeds up from 80km/hr to 110km/hr to pass another vehicle in 1.5 min (0.025hrs), what is their acceleration?
Answer: uhhhh im pretty sure the answer is 69m/hr
Explanation:
explain how soil can affect the composition of the solution that move through it
Answer: Soils are formed through the interaction of five major factors: time, climate, parent material, topography and relief, and organisms.
Soil structure affects plant growth in many, often surprising, ways. The most obvious effects are on root growth, which is strongly inhibited by hard soil, and which in turn influences the ability of the root system to extract adequate water and nutrients from the soil.
Explanation:
https://www.publish.csiro.au/sr/pdf/SR9910717
This is where I gather some info.
Part B
DIRECTIONS: Identify the type of heat transfer depicted in each picture by arranging the
jumbled letters and answer the questions that follows.
Answer:
1. conduction
2. Convection
3. Radiation
A sodium nitrate solution was prepared in the lab to have a concentration of 0.467 M. If 50. mL of a 6.00 M stock solution was used to prepare this sodium nitrate solution, what volume of water was added to the original 50. mL of stock solution? Provide the appropriate units (mL or L) to your response.
the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .
Explanation:
3. A PS6 plugged into a 120 V outlet uses 3 Amps. What is the Resistance rating of
the power cord?
voltage: V=
current: 1 =
resistance: R=
V=IxR
1=VR R
Underline/Bold Which Equation we are going to use:
= V
Plug in the numbers from above and solve for our answer:
Answer:
R = 40 ohms
Explanation:
Given that,
The voltage of outlet, V = 120 V
Current flowing through the device, I = 3 A
We need to find the Resistance rating of the power cord. Let the resistance is R. We know that,
Ohm's law, V = IR
Put all the values,
[tex]R=\dfrac{V}{I}\\\\R=\dfrac{120}{3}\\\\R=40\ \Omega[/tex]
So, the resistance rating of the power cord is equal to 40 ohms.
The ionization energies required to remove successive electrons from one mole of calcium atoms are 590 kJ/mol, 1145 kJ/mol, 4912 kJ/mol, and 6474 kJ/mol. The most common ion of calcium is probably
Answer:
Ca^2+
Explanation:
As we know, more energy is required to remove an electron from a positively charged ion than is required to remove an electron from a neutral atom. Hence, the second ionization energy of calcium is greater than its first ionization energy.
However, the third and fourth ionization energies of calcium are much higher than the second ionization energy because they involve removal of electrons from an inner filed shell. This process requires a lot of energy and is often not feasible.
Hence, the most common ion of calcium must be Ca^2+ where only two electrons are removed from calcium.
A 2.0 L flask contains nitrogen and oxygen gases at 25°C. The total pressure is 0.91 atm and contains 0.050 mol of nitrogen. Calculate the partial pressure of oxygen and moles of oxygen present
Answer:
.025 ml 02
Explanation:
I made a pdf and pasted it in and etc
how could you get the crystals in a supersaturated solution back into the solution?
A gas occupies 4.21 Iiters at a pressure 1 074 atm. What will its volume be if the pressure is decreased to 0.46 atm?
Answer:
15.9 Liters
Explanation:
according to Boyle's law P1V1 = P2V2
so we just plug in the values the problem gives us and solve for V2
(1.74)(4.21)=(.46)(V2)
V2 = 15.9 Liters
*note - there is a typo in your question when you states P1 = 1 074 atm. I just assumed you meant 1.74, if this is a mistake just replace 1.74 with the real P1 and solve it as shown above
if you have any questions just comment them below
what are the best topics to write a project work on EVS and Chemistry
Answer:
It is better to do chemistry
Explanation:
So that you will learn more of chemicals
Suggest whether potassium metal can be used to react with an acid to prepare a soluble salt. Explain your answer.
Yes, potassium metal can be used to react with an acid to prepare a soluble salt.
Acids react with metals to yield the corresponding metal salt and hydrogen gas.
One of the properties of metals is their ability to react with dilute acids to yield a soluble salt and hydrogen gas. This is a common reaction for all metals that are above hydrogen in the activity series.
Potassium can react with a hypothetical acid HB as follows;
2K(s) + 2HB(aq) ------> 2KB(aq) + H2(g)
https://brainly.com/question/6136372
copper oxide + hydrochloric acid →
Answer:
copper oxide + hydrochloric acid --> copper chloride + water
Explanation:
Thenks and mark me brainliest :))
Answer:
Copper oxide hydrochloric acid ( CuCl2 + H2O)
Explanation:
CuO + HCl → CuCl2 + H2O
Can someone please help with these questions!! I would really appreciate it
Answer: water
Explanation: those elements all react to water , so the answer would be water . :)
What is the new pressure of 150 mL of a gas that is compressed to 50 mL when the original pressure was 3.0 ATM and the temperature is held constant
Answer:
[tex]\boxed {\boxed {\sf P_2= 9 \ atm}}[/tex]
Explanation:
Since the temperature is held constant, we only need to focus on the volume and pressure. We will use Boyle's Law, which states the volume of a gas is inversely proportional to the pressure. The formula is:
[tex]P_1V_1=P_2V_2[/tex]
Originally, the gas had a volume of 150 milliliters and a pressure of 3.0 atmospheres. We can substitute these values into the left side of the equation.
[tex]3.0 \ atm * 150 \ mL = P_2V_2[/tex]
The original gas was compressed to a volume of 50 milliliters, but we don't know the volume.
[tex]3.0 \ atm *150 \ mL= P_2 * 50 \ mL[/tex]
Now, we need to solve for the new pressure (P₂). Multiply on the left side first.
[tex]450 \ atm*mL= P_2 * 50 \ mL[/tex]
Since we are solving for the pressure, we need to isolate the variable. It is being multiplied by 50 mL. The inverse of multiplication is division. Divide both sides by 50 mL.
[tex]\frac{450 \ atm*mL}{50 \ mL}= \frac{P_2 * 50 \ mL}{50 \ mL}[/tex]
[tex]\frac{450 \ atm*mL}{50 \ mL}= P_2[/tex]
The units of milliliters will cancel.
[tex]\frac{450 \ atm}{50 }= P_2[/tex]
[tex]9 \ atm =P_2[/tex]
The new pressure is 9 atmospheres.
Increasing the surface area between solute and solvent Select one: a. has no effect on the rate of dissolution. b. decreases the rate of dissolution. c. can increase, decrease, or have no effect on the rate of dissolution. d. increases the rate of dissolution.
Increasing the surface area between solute and solvent, increases the rate of dissolution.
What is rate?Rate of any process will gives idea about the speed of the completion of that happening process.
Dissolution is a process in which solute particles gets dissolve in the solvent medium. If we increases the surface area of any one medium of the solution like solute or solvent then the rate of dissolution increases, as it increases the space to get attracted to each other.
Hence, option (d) is correct.
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match these items. three-dimensional bonding, hardest natural substance, used as lubricant, nonconductor, weak planar bonds, carbon black or soot
Answer:
1. three-dimensional bonding
Diamond
2. Hardest natural substance
diamond
3. Used as lubricant
Graphite
4. nonconductor
Diamond
5. Weak, planar bonds
Graphite
6.Carbon black or soot
Amorphous
Explanation;
sorry im late, hopefully this can help somebody :)
Question 6
6.7 pts
A solution has a very high electrical conductivity, turns litmus paper red and has a pH of 2.0. This is most likely
a(n)
Base/Strong Electrolyte
Acid/Weak Electrolyte
Acid/Strong Electrolyte
Base/Weak Electrolyte
Next
« Previous
Answer:
Acid/String Electrolyte
Explanation:
Litmus paper turning red means it is an acidic solution. A pH of more than 7 is Base while pH of less than 7 is an acid. Since the pH is 2, less than 7, it s is an acid. Since it has a high electrical conductivity, it must be a strong Electrolyte.
What kind of reaction shows two reactants combining to form one new product?
What kind of reaction shows two reactants combining to form one new product?
A) a single-replacement reaction
B) a double-replacement reaction
C) a decomposition reaction
D) a synthesis reaction
Which of the following will conduct electricity?
Question 9 options:
A) Acid solutions only
B) Base solutions only
C) Acid solutions and base solutions
D) Neither acid solutions nor base solutions
Answer:
I think is c
Explanation:
I hope this helps you
Answer:
Acid solutions and base solutions
Explanation: