Answers
Explanation:
TUU-PQVH-MFG LINK for them who truely interested in Paranormal and have any doubt on Paranormal
Related Questions
Vhat are some of the benefits and drawbacks of recycling?
Answers
Answer:
benefits: can help reduce waste in land fills, and promotes reusability (turned into different products)
drawbacks: can be much more expensive to salvage than to just throw it in a landfill, and most of the time products cannot be recycled effectively due to its material.
HELP ME PLEASEEEEE its chem
1. The thermal waters of a spring have a hydronium ion (H3O+) concentration of 2.00 x 10-6 M. Calculate the pH of the water.
2. Acetic acid (CH3COOH) is one of the simplest carboxylic acids. It is an important chemical reagent and industrial chemical. Vinegar is dilute acetic acid, often produced by fermentation. The following is a reversible reaction:
CH3COOH ↔ H+ + CH3COO–
• Write the set up you would use to calculate the Ka of this reaction.
• Calculate the hydrogen ion concentration [H+] of a 0.1 M solution of acetic acid given that the dissociation constant of acetic acid is Ka = 1.8 x10–5. Work must be shown to earn credit.
3. Describe the reaction of a strong acid and a weak base. In general, what will the final pH be when the reaction between equal moles of a weak acid and a strong base is complete? Explain your answer.
Answers
Answer:The thermal waters of a spring have a hydronium ion (H3O+) concentration of 2.00 x . 2. Acetic acid (CH3COOH) is one of the simplest carboxylic acids. It is an important chemical reagent and industrial chemical.Have a hydronium ion (H3O+) concentration of 2.00 x 10-6 M. Calculate the pH of the water.
Explanation: The thermal waters of a spring have a hydronium ion (H3O+) concentration of 2. spring have a hydronium ion (H3O+) concentration of 2.00 x 10-6 M. Calculate the pH of the water. 2. Acetic acid (CH3COOH) is one of the simplest carboxylic acids. It is an important chemical reagent and industrial chemical.
How many grams of sodium chloride could be produced from 41.3 L of chlorine gas?
Answers
Answer:
The grams of sodium chloride that will be made is 292.5 g. calculation. 2Na + Cl₂ → 2NaCl. step 1: calculate the moles of Na. moles = mass/molar mass. From periodic table the molar mass of Na = 23 g/mol. moles = 115 g/23 g / mol = 5 moles. Step 2 : use the mole ratio to determine the moles of NaCl. Na:NaCl is 2:2 = 1:1 therefore the moles of NaCl is also = 5 moles.
Explanation:
We know sodium is a very active metal and chlorine is also a very reactive non-metal. Usually, metals like to eliminate electrons and non-metals such as halogens like to accept electrons. Sodium readily eliminate its last shell electrons become Na+ cation and chlorine accepts that electron to form Cl-anion.
In the lab you take 50.0 mL of a 40.0 M NaOH solution and then add water to it until it reaches the 500.0 mL mark of the flask. What is the concentration of the new solution?
Answers
Answer:
4.00M NaOH
Explanation:
A 50-ml amount of 40.0M NaOH contains
(40.0 mol NaOH/1 L)×(0.0500L) = 2.00 mol NaOH
Adding enough water to make a 500.0 mL NaOH solution, the new concentration of this solution is
2.00 mol NaOH/0.5000 L = 4.00M NaOH
what type of reaction takes place when bromine reacts with iron iodide
Answers
Answer:
If you pass bromine vapour over hot iron, a similar but slightly less vigorous reaction happens, this time producing iron(III) bromide. Anhydrous iron(III) bromide is usually produced as a reddish-brown solid. Again the iron has been oxidised to an oxidation state of +3.
Explanation:
⚠️⚠️What is kinetic energy ? ⚠️⚠️
Energy of work
Energy of movement
Energy of gravity
Energy of power
⚠️⚠️PLEASE HELP IM BEING TIMED⚠️⚠️⚠️
Answers
Answer:
Energy of Movement.
Explanation:
Have a great day!
What two forces act in the nucleus to create a 'nuclear tug-of-war'?
a.
Covalent bond, ionic bond
c.
Van der waals force, dipole
b.
Electrostatic repulsion, strong nuclear force
d.
All of the above
Answers
Answer:
Electrostatic repulsion, strong nuclear force
Explanation:
The nucleus consists of protons and neutrons. protons are positively charged while neutrons possess no charge.
Since protons are positively charged, they repel each other strongly (like charges repel). This strong repulsion of like charges makes the nucleus somewhat unstable leading to spontaneous fission of heavy nuclei.
However, an opposing force called nuclear attractive force tends to hold the nucleons together. This attraction occurs when two nucleons are bonded by a particle called a π meson.
Hence, the two forces that act in the nucleus to create a 'nuclear tug-of-war' are electrostatic repulsion and a strong nuclear force.
Help help help I will give brainliest
Answers
Answer:
its b alkyne
Explanation:
brinliest po plsss
Answer:
Alkyne so its b
Research online to find out what the acidity of the rainfall is where you live. If you live in an area which is affected by acid rain, where do you think it is coming from and why?
Write 3-5 paragraphs describing the effects.
If you do not live an area effected by acid rain, choose another city that is effected by acid rain.
Answers
Answer & Explanation: Acid rain occurs when sulfur dioxide and nitrogen oxide are released into the air to create a chemical reaction. When the two mix in the air (oxygen), they will get into the water and mix with other pollutants in the air, making acid rain.
Answer:
What is acid rain? Acid rain occurs when sulfur dioxide and nitrogen oxide are released into the air to create a chemical reaction. When the two mix in the air (oxygen), they will get into the water and mix with other pollutants in the air, making acid rain.
What causes acid rain the most? It can be caused by useing nonrenewable resources. Which inclues coal, oil, ect.
What effects can acid rain have? It causes respiratory issues in animals and humans. When acid rain falls down and flows into the rivers and ponds it affects the aquatic ecosystem. It alters the chemical composition of the water, to a form which is actually harmful to the aquatic ecosystem to survive and causes water pollution which can harm our fresh water supply.
What is the balanced equation for the reaction of a solution of sodium sulfate is mixed with strontium chloride?
Answers
Answer:
NaSO⁴(ads) ,ganadicate
How does increasing temperature affects reaction rate?
Answers
Step-by-step explanation:
The particles gain kinetic energy.
Which of the following statements are true about elements and compounds?
A. Elements are made up of compounds.
B. Compounds are made up of elements
C. Elements can be shown with chemical symbols, but compounds cannot.
D. Elements and compounds are the same thing.
Answers
Answer:
the answer is b
hope this helps :)
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Question 2(Multiple Choice Worth 2 points)
(04.06 LC)
The properties of elements can be predicted by which of the following?
Where it is on the periodic table
Where it was discovered
Its color in its natural state
Its name
Answers
Answer:
location on the periodic table
Explanation:
what are radioactive tracers used for
Answers
Answer:
Radioactive tracers are widely used to diagnose industrial reactors, for instance by measuring the flow rate of liquids, gases and solids.
Explanation:
Radioactive tracers are widely used to diagnose industrial reactors, for instance by measuring the flow rate of liquids, gases and solids. A radioactive tracer is a chemical compound in which one or more atoms have been replaced by a radioisotope.
heres the link for more information
https://www.iaea.org/topics/radiotracers#:~:text=Radioactive%20tracers%20are%20widely%20used,been%20replaced%20by%20a%20radioisotope
.
How many moles of hypomanganous acid. H3 MnO4, are contained in 22.912 g?
Answers
Answer:
0.188mol
Explanation:
Using the formula;
mole = mass/molar mass
Molar mass of hypomanganous acid. (H3MnO4) = 1(3) + 55 + 16(4)
= 3 + 55 + 64
= 122g/mol
According to this question, there are 22.912g of H3MnO4
mole = 22.912g ÷ 122g/mol
mole = 0.188mol
A jar is filled to the top with water, and a piece of cardboard is slid over the opening so that there is only water in the . If the jar is now turned over, will the cardboard fall off? What will happen if there is any air in the jar?
Answers
Answer:
it will all fall unless these is air
Explanation:
Answer:
If you do it carefully enough, a small amount of water will pour out of the glass — that's supposed to happen. But try not to let any air bubbles get into the glass. Finally, slowly remove the hand holding the cardboard in place.
How much heat do you need to raise the temperature of 300 g of ethanol from 0°C to 20°C?
Answers
Answer:
14.6
Explanation:
I just took the test
The amount of heat to raise the temperature is 14.7J.
How do you calculate the heat needed to raise the temperature?The specific heat capacity of a substance is the quantity of heat needed to raise the temperature of a unit quantity of the substance by one degree. Calling the amount of heat added Q, which will cause a change in temperature ∆T to a weight of substance W, at a specific heat of material Cp, then Q = w x Cp x ∆T
By applying the formula, we get
Q = w x Cp x ∆T
Q = 300 * 2.46 * 20/1000
Q = 14.760J
What is heat?
Heat is energy that is transferred from one body to another as the result of a difference in temperature.
Learn more about the heat here: brainly.com/question/13439286
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Which statement is true about the rotational period of the moon?
greater than the revolution period around Earth
always changing
less than the revolution period around Earth
equal to the revolution period around Earth
Answers
The statement is true about the rotational period of the moon " the rotational period of the moon is equal to the revolution period around Earth."
What is rotational period?A celestial object's rotation period may relate towards its sidereal rotation period, which is the time it takes for the object to complete one revolution around in its axis of rotation in sidereal seems like to the background stars.
What is revolution period?The orbital period is also known as the revolution period. it takes for one astronomical object to complete one cycle around another. It refers to planets and asteroids orbiting the Sun, moons orbiting planets, planetary systems orbiting other stars, or double stars in astronomy.
What is moon?In the night sky, the moon is just the brightest object. The moon doesn't at all produce its own light. It has no radiance. That is visible because the sun's light bounces off of it.
The rotational period of the moon is equal to the revolution period around Earth because the moon's rate of spin becomes tidally locked to its rate of revolution, it maintains the same face oriented towards the Earth In other words, every time the moon rounds the Earth, it rotates exactly once.
Therefore, the rotational period of the moon is equal to the revolution period around Earth will be correct answer.
To know more about rotational period click here.
https://brainly.com/question/242421.
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Oxygen has 6 valence electrons. how many hydrogen atoms (who have 1 valence electrons) can bond with it? remember the octet rule.
Answers
Answer:
two hydrogen can bonded with oxygen to form H2O
Hydrogen and oxygen combining to form water is an example of a physical change.
Answers
Which processes involve nuclear changes?
A. fission and fusion
B. erosion and weathering
C. combustion and oxidation
D. evaporation and condensation
Answers
Answer:
Nuclear processes, including fusion, fission, and radioactive decays of unstable nuclei, involve changes in nuclear binding energies.
Explanation:
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Explain the process of fermentation.
Answers
Answer:
Fermentation, chemical process by which molecules such as glucose are broken down anaerobically. More broadly, fermentation is the foaming that occurs during the manufacture of wine and beer, a process at least 10,000 years old. The frothing results from the evolution of carbon dioxide gas, though this was not recognized until the 17th century.
Explanation:
looked it up-
Answer:
like babies or milk and cheese?
Explanation:
What is the function of these organelles?
Answers
Answer:
Endoplasmic reticulum, Golgi apparatus, Nucleus, Storage Organelles, and Energy - Producing Organelles.
Explanation:
Hope its right! Mark me as Brainliest if it it right ;)!
Help calculate the density and please type it like this and explain how you got the answer thanks
Mass:
Volume;
Density:
Answers
Answer: 2.5
Explanation:
density= 2.5
mass= 62.5 or 62.50
volume= 25 ( 75-50= 25)
so divide 62.5( or 62.50) by 25 which will led you to 2.5
Balance the following chemical equation. Choose the correct coefficients in the balanced equation in order. *
4, 3, 2
2, 4, 2
1, 1, 1
3, 2, 3
Answers
Answer: 4,3,2
Explanation:
Use the drop-down menus to rank the boiling points of the following hydrocarbons. Use a "1" to indicate
the compound with the lowest boiling point.
Answers
Answer:
1. 4
2. 2
3. 3
4. 1
Explanation: just did it on edge 2021
Answer:
one.) 4
two.) 2
three.) 3
four.) 1
What type of reaction does this illustration represent?
A. synthesis
B. decomposition
C.single-replacement
D.double replacement
Answers
Answer: IS B
Explanation:
Decomposition
is sodium potassium nitrate exo or endo?
Answers
endothermic
Explanation:
I believe it's an endothermic but I'm not all too sure
Answer:
Pottasium nitrate is highly exothermic!However the dissolution of sodium nitrate in water is endothermic. Heat is absorbed during process.
how many moles of HCI will react with 18.13g of SrO
Answers
Answer:
Explanation:
The balanced chemical equation between
SrO + 2HCl → H2O + SrCl2
In a closed chamber, 58 grams of propane gas and 220 grams of oxygen gas are sparked to initiate the combustion reaction shown below. C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(l) What is the limiting reagent in this reaction?
propane
oxygen
water
carbon dioxide
Answers
Answer:
C) Propane
Explanation:
It's literally all I know