21. Which of the following is the best way to clean up an acid spill?
A. Wash down the acid spill with plenty of water.
B. Wipe up the acid spill with paper towel.
C. Spread sawdust on the acid spill to absorb it.
D. Neutralize the acid spill with a base; then wash it with plenty of water.
T1

Answers

Answer 1
The answer is D
If wrong then sorry

Related Questions

True or false? In giant covalent structures the atoms form strong bonds by sharing electrons.

Answers

Answer:

True

Explanation:

its true don't lie on here please

In giant covalent structures such as graphite or diamond, the atoms form strong bonds by sharing electrons. Therefore, the given statement is true.

What is a covalent bond?

A covalent bond can be defined as a chemical connection formed by the sharing of electron sets between particles. A covalent bond can be created by the mutual sharing of electrons from both atoms.

The pair of electrons that are shared in this kind of bonding is known as the shared or bonding pair. Covalent bonds are the sharing of bonding pairs of electrons that will provide the stability of the atom in its outer shell.

Elements that have very high ionization energies are incapable of exchanging electrons or elements having low electron affinity cannot accept electrons. Covalent bonding between two non-metallic atoms is characterized by the equal sharing of electrons between the atoms and covalent bonds with an electronegativity difference of participating atoms is more than 2.0.

Therefore, a giant structure like a diamond has strong covalent bonds that require a lot of energy to break.

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Which elements are the most reactive and why?

Answers

Answer:

Fluorine is identified as the most reactive nonmetal and the most electro-negative element in the periodic table, making it the strongest oxidizing agent. Caesium is the most reactive metal in the periodic table, so much that working with this metal often ends in explosions!

Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.

Hope that helps.

Alkali metals (situated far away from transitional metals and noble gases) are the most reactive elemental group. Cesium is second from the bottom of this group, with 6 electron shells, so it fits all the characteristics of a reactive atom, therefore making it the most reactive element.

It takes 25 mL of 0.20 M of hydrochloric acid (HCI) to neutralize 50 mL of
sodium hydroxide (NaOH). What is the concentration of sodium
hydroxide?

Answers

Answer:

0.1 M

Explanation:

(25 mL) (0.20 M) / 50 mL = 0.1 M

4. Which of the following statements accurately compares the wavelengths of the waves shown below?

A) wave 1 has a smaller wavelength than wave 2

B) wave 1 has a larger wavelength than wave 2

C) wave 2 has a larger wavelength than wave 1

D) wave 1 and wave 2 have the same wavelength

Answers

Answer:

B. wave 1 has a larger wavelength than wave 2

Wave 1 has larger wavelength than wave 2. Hence, option B is correct.

What is Wavelength?

Wavelength is defined as "the difference between two successive crests and troughs of the wave. The wavelength described the how long wave is. It is measure in the direction of wave.

Wavelength is usually denoted by the Greek letter ( λ ).

Wavelength is equal to the speed ( V ) of wave train to divided by frequency ( F ). It is given as,

λ = V ÷ F

Here,

λ = wavelength

V = speed

F = frequency

The distance between one crests (top) to another crests is a Wavelength. Alternately the distance between one troughs (bottom) to another troughs is wavelength.

The distance between two  crests in wave 1  is more comparatively wave 2 so , wave 1 will have larger wavelength than wave 2.

Therefore, wavelength is used for measuring the radiation.

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dose any body know 2(-3+6)=
______
3

Answers

Answer: The answer is 6  

1) Simplify  -3+6  to  3.

2×3

And then Simplify.

6

Sorry if im wrong

(GIVING BRAINLIEST, 5 STARS , THANKS AND 20 POINTS NO LINKS PLEASE THIS IS MY LAST ASSUGNMENT TO PASS BECAUSE I HAVE A 78% PLEASE QUICK)

Jason completed an experiment and found the materials that conduct electricity and the materials that do not conduct electricity well. He made a table of his findings, but he made one mistake. Review his table, and choose the best answer that will correct the error in his table.


Conducts Electricity Does Not Conduct Electricity Well
Silver necklace
Rubber boot
Cast iron frying pan
Plastic cell phone case
Ceramic coffee cup
Glass cup

A. A rubber boot does not conduct electricity well, so it is in the wrong group.

B. A glass coffee cup conducts electricity well, so it is in the wrong group.

C. A plastic cell phone case conducts electricity well, so it is in the wrong group.

D. A cast iron frying pan does not conduct electricity well, so it is in the wrong group.

Answers

Answer:

A.) A rubber boot does not conduct electricity well, so it is in the wrong group.

Explanation:

A glass coffee cup conducts electricity well when it is heated

Answer:

i think the answer is a rubber boot if i am correct

Explanation:

What is the percent, by mass, of water in MgSO4.2H20

Answers

Answer:51.1%

Explanation:

Mass percent : It is defined as the mass of the given component present in the total mass of the compound. Formula used : First we have to calculate the mass of  and . Mass of  = 18 g/mole Mass of  = 7 × 18 g/mole = 126 g/mole Mass of  = 246.47 g/mole Now put all the given values in the above formula, we get the mass percent of  in . Therefore, the mass percent of  in  is, 51.1%

4
Which statement about an ionic compound is not correct?
A It conducts electricity when dissolved in water.
B It has a high melting point due to strong attractive forces between ions.
с It has a regular lattice of oppositely charged ions in a 'sea of electrons'.
D The ionic bonds are formed between metallic and non-metallic elements.

Answers

Answer:

it conducts electricity when dissolved in water

Explanation:

the water molecules bond to positive and negative ions results to breaking of lattice and it's fixed position broken

What is the enthalpy of combustion when 1 mol C6H6(g) completely reacts with oxygen? 2C6H6(g) 15O2(g) mc001-1. Jpg 12CO2(g) 6H2O(g) â€""6339 kJ/mol â€""3169 kJ/mol 1268 kJ/mol 6339 KJ/mol.

Answers

The enthalpy of combustion of 1 mole of benzene is 3169 kJ/mol .

The first step in answering this question is to obtain the balanced thermochemical equation of the reaction. The thermochemical equation shows the amount of heat lost or gained.

The thermochemical equation for the combustion of benzene is;

2 C6H6(l) + 15 O2(g) → 12 CO2(g) + 6 H2O(g) ΔrH° = -3169 kJ/mol

We can see that 1 mole of benzene releases about 3169 kJ/mol of heat.

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Answer:

-3169 kJ/mol

Explanation:

in three to five sentences, predict the bonding activity between phosphorus and chlorine. why do you think they would bond that way?​

Answers

The bonding activity that occurs between phosphorus and chlorine is Covalent Bonding

Covalent bonding is an interaction between two atomic elements that share electrons between themselves.

In Phosphorus Pentachlorine PCl₅, covalent bonding occurs between Phosphorus and Chlorine.

This is because, Phosphorus is the central atom that is attached to 5 different chlorine atoms, each chlorine atom needs one electron each to complete its octet rule and since phosphorus has five valence electrons in its outermost shell, it shares it with each of the chlorine atoms.

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Answer:

Covalent Bonding

What percentage of the Periodic Table of Elements is Metals?

Answers

80 percent

About 80 percent of the elements are metals (shiny elements that conduct heat and electricity well), and 15 percent of the elements are nonmetals (poor conductors of heat and electricity). The remaining elements are metalloids, which share properties of both metals and nonmetals.

Answer:

80% of the Periodic Table consists of metals and 15% non-metals and 5% other elements.

Explanation:

Pls help if you only know the correct answer! Thanks! :)

Answers

Answer:

i think itd be an  exothermic reaction

Explanation:

An exothermic process releases heat, causing the temperature of the immediate surroundings to rise.

arrange the compounds from lowest boiling point to highest boiling point.

Answers

Answer:

ion- ion> H - bonding > dipole > dipole> london dispersion

It accounts for the differences in the behavior of particles in different states. *

Answers

Answer:

Matter

Explanation:

Solids, liquids, and gases are the three types of matter that can be found in the world around us today. In solids, all of the particles are close together. They move more in liquids, but they are spread out in gas.

I hope you can see because I really need help! I’ll give you 5 stars!

Answers

Answer:

In the picture A kettle is boiling water and evaporating it we can see the water vapours coming out of the kettle and there is a paper on top of the kettle from where the water vapours are coming out .

Explanation:

is this right ?? i hope it helps

What is a Chemical Properties and Physical Properties? Please tell me the deffinition of them both.

Answers

Answer:

All properties of matter are either physical or chemical properties and physical properties are either intensive or extensive. ... Physical properties can be measured without changing a substance's chemical identity. Chemical properties can be measured only by changing a substance's chemical identity.

Explanation:

give explanation ~~

Why are cloudy nights warmer than clear nights?​

Answers

Clouds are a source of Infrared Radiation. When cloud coverage increases, the infrared radiation also increases. So the clouds basically act as space heaters. This emits energy towards the ground, which is what makes cloudy nights warmer. While with clear sky’s all the heat from the day just escapes back into the atmosphere so the temperatures will be colder.

Q2. Fill in the blank with correct words.
A: Chemical B: Horizontal C: Shells D: Columns E: Group VII

1) The vertical ___________are called groups and the_____________rows are
called periods.
2) Elements in the same groups have the same number of electrons in their
outer_______________ for example, all the elements in ___________ have 7
electrons on their outer shells.
3) Elements in the same group have similar ___________ and physical properties

Answers

Answer:

Explanation:

1) The vertical Columns are called groups and the Horizontal rows are

called periods.

2) Elements in the same groups have the same number of electrons in their

outer Shells for example, all the elements in Group VII have 7

electrons on their outer shells.

3) Elements in the same group have similar Chemical and physical properties

Explanation:

1) Columns

Horizontal

2)Shell

Group VII

3)Chemical

11. The ease with which water can pass
through a rock or sediment is called
a. permeability c. porosity.
b. carbonation. d. velocity

Answers

Answer:

It's option a) Permeability.

Which of the following giant covalent structures is a good conductor of electricity?
a) polythene
b) diamond
c) graphite
d) silicon dioixide

Answers

I would go with C

Hope this helps

Given that the molar mass of NaCl is 58. 44 g/mol, what is the molarity of a solution that contains 87. 75 g of NaCl in 500. ML of solution? Use Molarity equals StartFraction moles of solute over liters of solution EndFraction. 0. 333 M 0. 751 M 1. 50 M 3. 00 M.

Answers

Answer:

D

Explanation:

Given that the molar mass of NaCl is 58.44 g/mol, we want to determine the molarity of a solution that contains 87.75 g of NaCl in 500. mL of solution.

Recall that molarity is given by:

[tex]\displaystyle \text{M} = \frac{\text{ mols solute}}{\text{ liters soln.}}[/tex]

Therefore, we can convert the amount of NaCl in the solution to moles of NaCl and the volume from milliliters to liters:

[tex]\displaystyle \begin{aligned} \text{M} & = \frac{(87.75 \text{ g NaCl})}{(500. \text{ mL soln.})} \cdot \frac{1 \text{ mol NaCl}}{58.44 \text{ g NaCl}} \cdot \frac{1000 \text{ mL soln.}}{1 \text{ L soln.}} \\ \\ & = 3.00\text{ } \frac{\text{mol NaCl}}{\text{ L soln.}} \\ \\ & = 3.00 \text{ M} \end{aligned}[/tex]

Hence, our answer is D.

5. Scientists always develop a plan when they try to learn something about our natural world. Which
sequence correctly shows the steps scientists follow in their plan?
A. make observations, develop an idea, obtain evidence, suggest an explanation
B. obtain evidence, suggest an explanation, develop an idea, make observations
C. suggest an explanation, obtain evidence, make observations, develop an idea
D. develop an idea, suggest an explanation, obtain evidence, make observations

Answers

D. Develop an idea, suggest an explanation, obtain evidence, make observations. is correct

Summarize: Complete the following statements:
A. 1 mole of any element contains 6.0221 x 1023 _____
B. 1 mole of any compound contains 6.0221 x 1023 ______

Answers

Answer:

Explanation:

Taking into account the definition of Avogadro's Number, the correct answers are:

1 mole of any element contains 6.023×10²³ atoms

1 mole of any compound contains 6.023×10²³ molecules

You have to know that Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole.

Avogadro's number represents a quantity without an associated physical dimension, so it is considered a pure number that allows describing a physical characteristic without an explicit dimension or unit of expression.

Avogadro's number applies to any substance, because the number of elementary units in a mole of a substance is, by definition, a  constant that does not depend on the material or the type of particle considered.

So, in this case, the correct answers are:

1 mole of any element contains 6.023×10²³ atoms

1 mole of any compound contains 6.023×10²³ molecules

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Lead has an atomic number of 82. Which statement describes all neutral atoms and ions of lead?
Neutral atoms of lead must have 82 electrons. Ions must have 82 electrons, as well.

Neutral atoms of lead must have 82 neutrons, but ions can have more or fewer.

Neutral atoms of lead must have 82 protons. Ions must have 82 protons, as well.

Neutral atoms of lead must have 82 protons, but ions can have more or fewer.

Answers

The neutral atom of lead must have 82 protons while ions can have b or less than 82.

The atomic number of an element is the number of protons in the nucleus of the element.

Also, for neutral atoms, the number of protons equals the number of electrons.

In ionic form, the number of protons/electrons of an atom may vary and be different from that of the neutral form.

Positive charges mean that the ion has less proton than its neutral version while negative charges mean that it has more electrons than its neutral version.

Thus, the neutral atom of lead will contain an equal number of protons as the electrons while its ionic form can have more or less than 82 protons.

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what is the mechanical hound in the book fahrenheit 451

Answers

Explanation:

The Mechanical Hound is a robotic animal that firemen can deploy to hunt and catch fugitives. It can be trained and programmed to hunt its prey very quickly by smell. Once it catches its prey, the Hound injects the person with a sedative; unable to run, the drugged fugitive is easily captured.

what are the products of any combustion reaction involving a hydrocarbon

Answers

Answer:

The products of the combustion of hydrocarbons are carbon dioxide and water. Many hydrocarbons are used as fuel because their combustion releases very large amounts of heat energy.

Answer:

The products of the combustion of hydrocarbons are carbon dioxide and water. Many hydrocarbons are used as fuel because their combustion releases very large amounts of heat energy.

Explanation:

what happens when carbon dioxide gas is cooled to -78 degree Celsius​

Answers

Answer:

It will be solid

Explanation:

-78 C° is the freezing point of carbon dioxide, so at the temperature of -78 Celsius, the particles of carbon dioxide will come closer together and have about a fixed position to vibrate. The carbon dioxide will turn into solid. The solid form of carbon dioxide is also called dry ice.

Which statement about the Periodic Table is correct?
A Elements are arranged in order of decreasing proton number.
B Group number is the number of electron shells in atoms of the elements in the group.
C Group numbers can be used to predict the charges of ions.
D Metallic character increases left to right across a period.

Answers

answer :c

explanation :

group numbers can be used to determine the number of electrons in the outer most shell thus if the group numbers are above four then the elemnts are negative ions if less than four then posetive

Calculate the following. Be sure to follow significant figure rules.

1.) 1.2 m + 2.35 m =

Answers

1.2 + 2.35 = 3.6m (2sf)

Ignore me I dont know what im doing.

what is the difference between hydrophilic and hydrophobic?

Answers

Hydrophilic - attracted to water
Hydrophobic - resists water
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Boudinot believes that the whites have an incorrect perception of the humanity of the Cherokee people.Which details from the text support this?Select the two correct answers."It needs not the power of argument on the nature of man, to silence forever the remark that 'it is the purpose of the Almighty that the Indians should be exterminated.'""When the ancient customs of the Cherokees were in their full force, no warrior thought himself secure, unless he had addressed his guardian angel; no hunter could hope for success, unless before the rising sun he had asked the assistance of his God""There are three things of late occurrence, which must certainly place the Cherokee Nation in a fair light, and act as a powerful argument in favor of Indian improvement.""But such impressions, originating as they frequently do, from infant prejudices, do great injustices to many of this race of beings." Define gamete and zygote. What number of chromosomes does each have? Benefits of doing basketball I need help I have a test...!Find the value of x in the figure: complete the sentence to explain how to multiply 4.56x1000 40x^-4 y^-6/(over)10x^-5 y^5 Anne releases a stone from a height of 2 meters. She measures the kinetic energy of the stone at 9.8 joules at the exact point it hits the ground. What is the mass of the stone? This mutation does have a benefit where it provides protection against Malaria (a mosquito-born parasitic disease). Those that are heterozygotes for sickle-cell anemia also have protection without the negative consequences of sickle-cell anemia. By researching online, find examples of mutations that resulted in a positive effect in human beings and describe it in the discussion. Write each expression in terms of sine and cosine, and then simplify so that no quotients appear in the final expression and all functions are of x only.[tex]\frac{csc^2 (-x)-1}{1-cos^2 (-x)}[/tex] Appalachian Mountains were formed 500 to 300 million years ago result of a(n) collision of continents. This is an example of what force? Destrusctive or constructive the system shown above is released from rest. if friction is negligible, the acceleration of the 4.0 kg block sliding on the table shown above is most nearly how did the bantu-speakers influence the development of the great zimbabwe? __________ is collection of variety of things from people by the king. 1. Tribute2. Attitude3. Institute ANYONE KNOW THIS WRITING PLEASEHELP ME THANKS Assignment InformationPurpose Create a multimedia presentation to deliver a convincing argument.Time Approximately twenty minutesQuestion How can you turn an essay into a clear and visually appealing multimedia presentation? what are physicochemical materials? Why did the US join the war? Select all that appliesZimmerman TelegramSinking of the U.S.S MaineGermany's Aggressive ActionsGreat Britain's Blockage Who is the antagonist in "The Ambitious Guest" by Nathaniel Hawthorne? What is the equation of the line that passes through the point (5, 6) and has a slopeof 2 state one cause of temporary hardness of water Which system of equations is graphed on the coordinate plane below?