Answers
Answer:
possible answers
water
baking soda
hydrogen peroxide
table salt
carbon dioxed
sodium chloride
calsium carbonate
Explanation:
sorry there are A LOT OF CHOICES soo..idont know for sure which one is the answer
but...
hope it helps
Related Questions
it is the main factor of contact metamophism.
Answers
Answer:
The size of a contact aureole depends on a number of factors that control the rate at which heat can move out of the pluton and into the surrounding country rock. Among these factors are: The size and temperature of the intrusion. This will control how much heat is available to heat the surrounding country rocks
Explanation:
Hope this helps u
crown me as brainliest
Which of the following is constant in the universe?
A. Total energy
B. Total entropy
C. Total heat
D. Total temperature
Answers
Answer:
A
Explanation:
ez l.m.a.o.
In a science demonstration, a teacher mixed zinc (Zn) with hydrogen chloride (HCl) in a flask and quickly attached a balloon over the mouth of the flask. Bubbles formed in the solution and the balloon inflated.
What most likely occurred during this demonstration?
a.The Zn and HCl both retained their identity.
b.Either Zn or HCl, but not both, retained its identity.
c.Evaporation of one of the substances occurred.
d.One or more new substances formed.
Answers
Answer:
a. The Zn and HCl both retained their identity.
KCIO3 -> KCI + 02
How many moles of KCI are produced if 6743 grams of KCIO3 decomposes?
Answers
55.03 moles of KCI are produced when 6743 grams of \(KClO_{3}\) decomposes
To determine the number of moles of KCl produced when 6743 grams of \(KClO_{3}\) decomposes, we need to use the concept of molar mass and the balanced chemical equation.
First, let's calculate the molar mass of \(KClO_{3}\)
The molar mass of potassium (K) is approximately 39.10 g/mol.
The molar mass of chlorine (Cl) is approximately 35.45 g/mol.
The molar mass of oxygen (O) is approximately 16.00 g/mol.
So, the molar mass of \(KClO_{3}\) is:
(39.10 g/mol) + (35.45 g/mol) + (3 * 16.00 g/mol) = 122.55 g/mol.
Now, we need to calculate the number of moles of \(KClO_{3}\):
Number of moles = Mass / Molar mass
Number of moles = 6743 g / 122.55 g/mol = 55.03 mol.
According to the balanced chemical equation:
2\(KClO_{3}\) -> 2 KCl + 3 O2,
we can see that for every 2 moles of \(KClO_{3}\), we obtain 2 moles of KCl.
Therefore, the number of moles of KCl produced will be equal to the number of moles of \(KClO_{3}\) since the ratio is 1:1. Thus, 55.03 moles of KCl will be produced.
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20 Points!! Which of the following is a synthesis reaction? AgNO3+NaCI--> AgCI+NaNO3
CH4+O2->CO2+H2O SO3+H2O-> H2SO4 Cu+AgNO3 ->Ag+CuNO3
Answers
synthesis reactions have multiple reactants that synthesize into one product
If 6 moles of Al2O3 react, how many moles of O2 are produced?
Answers
Answer:
18 moles O₂
Explanation:
To convert moles of Al₂O₃ to moles O₂, you first need to determine the balanced reaction. Using the reaction coefficients, you can multiply the starting value by the mole-to-mole ratio of the desired substances.
1 Al₂O₃ ---> 3 O₂ + 2 Al
6 moles Al₂O₃ 3 moles O₂
----------------------- x ----------------------- = 18 moles O₂
1 mole Al₂O₃
four difference between electrolytic cell and electrochemical cell
Answers
Answer:
Electrochemical cells convert chemical energy into electrical energy or vice versa. Electrolytic cell is a type of electrochemical cell in which electrical energy is converted into chemical energy. ... Electrolytic cells consist of positively charged anode and a negatively charged cathode.
I hope it's help
look at the given reaction and use the letter code corresponding to each compound in the blank to indicate the expected product(s) or correct vocabulary word/phrase to complete the description. if a specific stereoisomer (e.g single enantiomer) is formed, select that isomer only. if a mixture of stereoisomers (e.g. racemic or diastereomers) is formed, select the single structure that shows the appropriate mixture (e.g. lines not dashes).
Answers
The stereoisomers are the isomers which have the same composition but differ in the orientation in space.
The stereoisomers are the isomers which have the same molecular formula but have different in the three - dimensional space . the single enantiomers are the one which are not superimposable to the mirror image of each other. this means, the enantiomers of the chemical compound have the same molecular formula but have the differenr spatial arrangement.
The diastereomers are the compounds which have the same molecular formula but they are not mirror image of each other and non superimposable to each other.
The question is incomplete, I answer the question in general according to my knowledge.
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What is the definition of a fossil?
A. the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
B.the body of a dead organism such as a dinosaur
C. the bones of an animal that has died and been buried in sand
D. something that is very old or ancient that has been found or studied by scientists
Answers
Answer:
A. The remains or impression of a prehistoric organism preserved in a petrified form or as a mold or cast in a rock
Explanation:
A.the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock
According to the ideal gas law, what
will be the volume of 0.25 mol of
nitrogen at 0.82 atm pressure and
57°C temperature?
Answers
Explanation:
Ideal Gas Law
PV = n R T
V = n R T / P n = moles R = gas constant = .082057 L atm / ( K mol)
T is in Kelvin
V = .25 moles * .082057 * (273.15 + 57) K / .82 atm = 8.3 moles
( two Sig Dig)
How many moles are present in 2.95 x1024 molecules of water (H20)
Answers
ANSWER: 3020.8 moleclues of water (h20) Explanation I did the math and the quiz
Derive the van der Waals equation of state for a real gas and explain the significance of the law.
Answers
In the case of a real gas when you're using Van Der Waals equation, the volume of a real gas is considered as (Vm - b), where b can be considered as the volume occupied by per mole.
Therefore, when the ideal gas law gets substituted with V = Vm - b, it is given as : P(Vm - b) = nRT
The presence of intermolecular attraction P was modified as follows.
\(\frac{P+a}{V^{2} } (Vm- b) = RT\\\frac{P+an^{2} }{V^{2} } (V - nb) = nRT\)
Where, Vm: molar volume of the gas
R: universal gas constant
T: temperature
P: pressure
V: volume
Thus, it is possible to reduce Van Der Waals equation to the ideal gas law as PVm = RT.
What is the significance of the Ideal gas Law?
The ideal gas law only functions as an approximation approach when high accuracy is not necessary because it describes the behaviour of ideal gasses, which there aren't any of. It is a solid introduction to the fundamental behaviour of gases and works well as a teaching tool, which is why it is taught to the majority of university students as part of any introduction to physics. In essence, the ideal gas law enables students to comprehend ideas such as the process of thermodynamic cycles, such as an engine, the reason an airbag expands, what transpires to a balloon at high altitude, and other related ideas.
Hence, Van Der Waals equation to the ideal gas law as PVm = RT.
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If the products of a chemical reaction contain less potential energy than
the reactants,
A. energy has been stored in the molecular bonds of the product.
B. the reaction will be reversible without additional energy input.
C. no energy exchange occurred.
D. a synthesis reaction is likely to have occurred.
E. energy has been released by the breaking of molecular bonds.
Please explain, Thank you
Answers
The energy has been released by the breaking of molecular bonds if the products contain less energy than the reactants and it's a kind of exothermic reaction.
There will be lesser enthalpy throughout the product more often than in the reaction mixture and therefore a minus or low enthalpy has been said to occur in such a process called Exothermic.In the other words, this same energy intended to breakdown down the bonds between the molecules would be less than whenever the product lines create the new ones.
Thus Option E is the appropriate alternative.
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Give the formula of Plaster of Paris And some of its uses..
:))
Answers
Experimental techniques: Carrying out a chemical reaction with heat, using TLC to follow a chemical reaction, use of a pluringe to measure liquid reagents, isolation of a solid product by crystallization, melting point determinationGiven the reagent quantities in the procedure below, please determine the number of molar equivalents of acetic anhydride used in this procedure. Which reagent is the limiting reagent?Warning: acetic anhydride is corrosive and a lachrymator. When carrying it across the lab, when it is inside a flask, please temporarily stopper the flask.ReactionPlace salicylic acid (200 mg = 0.200g) into a dry 25ml round bottom flask (RBF). Temporarily close the flask with a cork stopper.Using a pluringe, measure acetic anhydride (2 ml) and add it to the reaction flask. Stopper the flaskagain. One pluringe will be shared by all students for this purpose.Securely clamp the RBF so it sits about 1 inch off of a sand bath. For now, keep the sand bath off.Remove the stopper, and quickly attach a water condenser to the RBF (flowing water is unnecessary)Turn the sand bath/Variac onto medium power (~75% of the maximum setting), let it warm up for about2 minutes.Carefully lower the reaction apparatus so the flask is heated in the sand bath. The reaction should beheated for 7 minutes. This heating will cause the reaction temperature to be 80-100 0C.Turn off the sand bath/Variac, raise the reaction mixture to 1 inch above the sand bath, allow thepage1image28672page1image28832page1image28992reaction mixture to cool for ~5 min.
Answers
The number of molar equivalents of acetic anhydride used in this procedure is 0.2 mol. Since only 0.2 mol of acetic anhydride was used, it is the limiting reagent.
What is limiting reagent?Limiting reagent is a term used in chemistry to describe a substance that is completely consumed during a chemical reaction. It is the reagent that limits the amount of product that can be formed. In a reaction involving multiple reactants, the limiting reagent is the reactant that is completely used up before any of the other reactants are used up. The amount of product formed in a reaction is determined by the amount of limiting reagent present. The amount of product is equal to the amount of limiting reagent present. When one reactant is completely consumed before any of the other reactants are used, the reaction has reached its equilibrium and no further product can form.
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the molecules of a solid normally move to and fro a little. When the solid is heated, its molecules start moving faster. The more it is heated, the faster they move. Can this be related in any way to change of state of the solid.How?
Answers
1000 in² = ? yd.
Could sb help me out
Answers
Answer:
um 27 yards..............
how does the study of genetics and Dna
help the study of evolution
Answers
4. Calculate the final volume of a gas if it's initial pressure is 118 kPa and original volume is 17 Liters, and the final pressure is recorded as 265 kPa.
Answers
Answer:
7.57 LExplanation:
The new volume can be found by using the formula
\(V_2 = \frac{P_1V_1}{P_2} \\\)
where
P1 is the initial pressure
P2 is the final pressure
V1 is the initial volume
V2 is the final volume
From the question we have
\(V_2 = \frac{118 \times 17}{265} \\ = 7.569811\)
We have the final answer as
7.57 LHope this helps you
What would make oppositely charged objects attract each other more?
O increasing the positive charge of the positively charged object and increasing the negative charge of the
negatively charged object
O decreasing the positive charge of the positively charged object and decreasing the negative charge of th
negatively charged object
increasing the distance between the positively charged object and the negatively charged object
O maintaining the distance between the positively charged object and the negatively charged object
Answers
Answer:
The correct answer is A. increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object
I hope this helped :D
What is the concentration of chloride ions when 2.5 g FeCl is dissolved in 150 mL water?
Answers
The concentration of chloride ions when 2.5 g of FeCl is dissolved in 150 mL of water is approximately 0.54 M.
To determine the concentration of chloride ions when 2.5 g of FeCl is dissolved in 150 mL of water, we need to consider the molar mass of FeCl and perform some calculations.
The molar mass of FeCl is 55.85 g/mol (for iron) + 35.45 g/mol (for chlorine), which gives a total molar mass of 91.3 g/mol for FeCl.
First, we need to calculate the number of moles of FeCl present in 2.5 g of the compound. This can be done using the formula:
moles = mass / molar mass
moles of FeCl = 2.5 g / 91.3 g/mol = 0.027 moles
Next, we convert the volume of water from milliliters (mL) to liters (L):
volume of water = 150 mL = 150/1000 L = 0.15 L
Now, we can calculate the concentration of chloride ions (Cl-) using the formula:
concentration (Cl-) = moles of Cl- / volume of water
Since FeCl dissociates into one Fe3+ ion and three Cl- ions, the number of moles of Cl- is three times the moles of FeCl:
moles of Cl- = 3 * moles of FeCl = 3 * 0.027 moles = 0.081 moles
concentration (Cl-) = 0.081 moles / 0.15 L = 0.54 M.
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which of the compounds can in principle be isolated in optically active form at room temperature? select all valid choices.
Answers
The compounds that can in principle be isolated in an optically active form at room temperature are:
2-pentanol compound; option BCarbohydrates; option CWhat are compounds?
A compound is described as a material formed by chemically bonding two or more chemical elements.
The 2-pentanol compound is said to be optically active because it has one asymmetric carbon atom, namely the C atom which binds 4 different groups.
optically active compounds are described as compounds that can rotate the plane of polarization. A compound is optically active if it has asymmetric C or chiral C atoms. Asymmetric C atoms are C atoms that are bonded to four different elements or molecules.
In conclusion, Because not all compounds that have chiral atoms are optical, hence if the atom has a plane of symmetry or a plane that can be folded in half with the same side, it means that it is not an optical compound.
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Which of the compounds can in principle be isolated in an optically active form at room temperature? select all valid choices.
Complete question:
a. is-1,4-dimethyl cyclohexane
b. 2-pentanol compound
c. Carbohydrates
d. trans-1,3-dimethyl cyclohexane
e. 1,1-dimethyl cyclohexane
Which intermolecular force(s) do the following pairs of molecules experience? (Consider asking yourself which molecule in each pair is dominant?)
Answers
The Fischer projection given here is for L-enantiomer and ketopentose. Option B is correct, as there is a ketone group present in the carbohydrate monomer. Carbohydrate can have an aldehyde or ketone as a functional group.
What is a carbohydrate?
Carbohydrate monomer is a single unit that can either have an aldehyde functional group called aldose or a ketone functional group called ketose. Here in the given diagram, the monomer has a ketone group (C=O) and has five carbons, so it is considered a keto pentose. Carbohydrates are classified into L and D forms based on their OH group, and this L and D form differs from the "l" and "d" form (classified on the direction of movement around the plane polarized light).
Hence, this given diagram is L-enantiomer and keto pentose, which is option B.
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The end point indicates the completion of the titration by physical change (which is
usually color change)*
True
False
Answers
Please match each cofactor with its function. 1) thiamine pyrophosphate A) CO2 activation/transfer 2) coenzyme A B) oxidation/reduction 3) biotin C) activation of aldehydes 4) NAD D) acyl group transfer
Answers
Answer:
1) thiamine pyrophosphate -activation of aldehydes
2) coenzyme A -acyl group transfer
3) biotin -CO2 activation/transfer
4) NAD -oxidation/reduction
Explanation:
1. Thiamine pyrophosphate: This is a derivative of Vitamin B1 also known as thiamine. It contains a pyrimidine group linked to the thiazole ring. This connection is further linked to the pyrophosphate group. It functions as a coenzyme in all reactions involving alpha-keto acids. This produces activated aldehydes that could be subject to oxidation.
2. Coenzyme A: This cofactor is a thiol that reacts with carboxylic acids to form thioesters. In so doing, it carries the acyl group. In this condition, it can also be referred to as acyl CoA.
3. Biotin: Also known as Vitamin B7, biotin consists of an ureido ring merged with tetrahydrothiophene. The ureido ring contains the CO2 that can be transferred or activated. Five carboxylase enzymes use biotin as a cofactor in processes such as fat synthesis, glucose generation and the breakdown of sugar.
4. NAD: Nicotinamide adenine dinucleotide consists of two dinucleotides connected to each other at their phosphate groups. NAD exists in two states which are the NAD+ and NADH states. These two states serve as oxidizing and reducing agents respectively. The oxidizing agent becomes reduced to NADH after accepting electrons from other compounds. NADH donates an electron and becomes oxidized to NAD+.
Describe two realistic demands protestors could bring forward in their peaceful protest so that they dont face the same situation in future
Answers
Answer:
I do not know the Answer I'm just trying to get my point
Explanation:
Thank You
The two realistic demands protestors could bring forward in their peaceful protest include:
Adequate securityProvision of social amenities.Who is a Protester?Thus it is referred to an individual which publicly demonstrates opposition to something.One of the roles of the government is to protect lives and properties.
Making realistic demands during a peaceful protest is looked into in most cases.
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What are the three main groups of macronutrients? (select three please)
minerals
proteins
fats
carboydrates
Answers
Answer:
protein, carbs, and fats.
Explanation:
Those are the three main sources of macronutrients.
(this isn't a chemistry, it's health)
Answer:
fats, carbohydrates and proteins
Explanation:
I don't know, I answered that on my test and it was correct
True or False: The specialized cells in a UNICELLULAR organism perform
specialized jobs.
Your answer
Answers
Answer:
True
Explanation:
state Graham's law diffusion of gas mathematical expression ?
Answers
Answer:
Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight
Explanation:
Which of the items below is a colloid?
a.fruit salad b.gelatin c.lacquer
Answers
Answer:
b. gelatin
Explanation:
a homogeneous noncrystalline consisting of large molecules or ultramicroscopic particles of one substance.