Answer:
787.401575 inches
What is kaleidoscope? Write it's use .
Answer:
Kaleidoscope is an optical toy consisting of two mirrors at a particular angle. Some common uses of the kaleidoscope are: Kaleidoscope produces beautiful patterns that are used by fashion designers. A kaleidoscope is used as a toy for entertainment.
Hope it's helpfulHow do we measure the weight or mass of something
Explanation:
We can measure the weight or mass of something by using beam balance.
If you were to have a bottle containing compound X in your closet, what phase would it most likely be in? *
Answer:
Most likely gas
Explanation:
You got out to dinner and the bills comes to $44.79. How much should you tip if you want the tip to be 18.0% of the bill?
Answer:
7%
Explanation:
I'd you have $44.79 you put the decimal next to the first 4 so 10% would be $4 and 20% would be $8 so 18% will be like 7
CHAPTER 8 FORCE AND MOTION
Choose the S.I. unit for pressure.
1. Watt
2. Joule
3. Pascal
4.Newton
Which direction does heat flow from
Answer:
A
Explanation:
hot to cold; jus took the quiz;)
Which statement about an atom is correct? (1 point)
O The proton has no charge and is found in the nucleus.
O The neutron has no charge and is found outside of the nucleus.
O The neutron has a negative charge and is found in the nucleus.
o The electron has a negative charge and iş found outside of the nucleus.
Answer:
D. the electron has a neg. charge and is found outside of the nucleus.
Explanation:
the proton has a positive charge, while the neutron has no charge at all. both are found in the nucleus.
the electron has a negative charge, but stays outside of the nucleus in the electron cloud, constantly moving around.
Taking into account the constitution of an atom, the correct statement is "The electron has a negative charge and iş found outside of the nucleus."
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.
Every atom consists of:
A nucleus in which neutrons and protons meet. Energy levels where electrons are located.In other words, the atomic nucleus is the central part of the atom that is made up of protons and neutrons, while the orbitals or peripheral region is an area where electrons are found.
The neutron is an electrically neutral subatomic particle, while the proton has a positive electrical charge. Electrons have a negative charge, move around the nucleus at different energy levels and are attracted to protons, positive in the atom through electromagnetic force.
In summary, the correct statement is "The electron has a negative charge and iş found outside of the nucleus."
Learn more:
https://brainly.com/question/1814899?referrer=searchResultshttps://brainly.com/question/2449569?referrer=searchResultscalculate the number of moles in 2.5 particle NaOH
Answer:
1.5055×10²⁴
Explanation:
................................
How does the carbonyl group increase the reactivity of carboxylic acids?
Answer:
The relative reactivity of carboxylic acid derivatives toward nucleophile substitutions is related to the electronegative leaving group's ability to activate the carbonyl. The more electronegative leaving groups withdraw electron density from the carbonyl, thereby increasing its electrophilicity.
Hope it helps you.Question
"Drag each tile to the correct location on the concept map", for the question.
Read the instructions for this self-checked activity. Respond to each question, and check your answers. At the end of the activity, write a brief
evaluation of your work.
Answer:
i hope this helps, also you might want to put it into your own words because this was directly from the answer key :)
Explanation:
Faustus Faustus is the protagonist of the play. He is a brilliant scholar who makes a deal with Lucifer to exchange his soul for magical power. He later regrets his decision, but it’s too late and his soul is carried away to hell.
Mephastophilis Mephastophilis is a demon that Faustus calls upon to help him with magic. He turns into Faustus's servant in his pact with the devil.
Valdes and Cornelius Valdes and Cornelius are friends of Faustus who teach him the art of black magic.
three scholars The three scholars are friends of Faustus who are concerned about his welfare.
Lucifer Lucifer (the devil) is Mephastophilis’s master. He makes a deal with Faustus.
Wagner Wagner is Faustus’s servant. He learns how to work magic from his master’s books.
clown The clown becomes Wagner's servant. He provides comic relief in the story.
good angel The good angel is a spirit that tries to get Faustus to repent.
evil angel The evil angel is a spirit that tempts Faustus to rebel against God and make a pact with the devil.
the pope The pope is the head of the Roman Catholic Church and symbolizes the religious beliefs that Faustus has abandoned.
horse-courser The horse-courser is a horse trader who purchases a horse from Faustus.
old man The old man is a mysterious figure who takes the place of the good and evil angels in the last scene of the play.
D
Question 3
1 pts
In olden times, apothecaries used to dispense medicine using their own system of measurements
that are listed below. Use these conversions to determine how many milligrams would be in a
sample of 1.250 scruples.
1 apothecary pound = 12 ounces
1 ounce = 8 drams
3 scruples = 1 dram
1.2153 apothecary pound = 1 English pound
1 kg = 2.205 English pounds
Enter your answer to the correct number of significant digits. Do not include the units.
Changing 1.250 scruples to milligrams.
To convert from a unit to another, First write the conversion guide
then cross multiply in such a way that the unit both top and bottom
cancel out each other together with dividing or multiplying the values associated with them.
To get to the answer we have to wor it out step by step.
First step
3 scruples = 1 dram
1.250 scruples=
= [tex]\frac{1.250 scruples x 1 dram}{3scruples}[/tex] = 0.41667dram
2nd step
8 drams=1 ounce
0.41667drams =
[tex]\frac{0.41667drams x 1}{8 drams }[/tex] =0.05208 ounces
3rd step
1 apothecary pound = 12 ounces
?apothecary pound =0.05208 ounces
[tex]\frac{0.05208 ounces x 1apothecary pound }{12 ounces}[/tex] =0.00434 apothecary pound
4th step
1.2153 apothecary pound = 1 English pound
0.00434 apothecary pound =
[tex]\frac{0.00434 apothecary pound x 1 English pound}{1.2153 apothecary pound }[/tex]
==0.003571 English pound
5th step
1 kg = 2.205 English pounds
??kg =0.003571 English pound
[tex]\frac{0.003571 English pound x 1kg }{2.205 English pounds}[/tex]
=0.00161950kg
6th step
1kg =0.00161950kg
0.00161950kg=
[tex]\frac{0.00161950kg x 0.00161950kg}{1kg}[/tex]
=1,619.50mg
Therefore, 1.250 scruples=1,619.50mg
See related type of question here:
https://brainly.com/question/21946442
please help me with this question i put 100 points on it and i will give brainlyest no links or files or i will report
The Earth’s tilt changes its position relative to the stars and constellations as the Earth rotates around its axis.
Please help thank you (15 points)
Answer:
A. Complete one revolution around the sun
lidocain có tính bazơ không
Answer:
Lidocain là cơ bản.
Tôi hy vọng câu trả lời của tôi là hữu ích cho bạn.
5. A Brønsted-Lowry acid
A. is any species that donates a proton.
B. is any species that accepts a proton.
C. has a lower pH than vinegar.
D. is limited to aqueous solutions.
Answer:
A. is any species that donates a proton.Explanation:
A Bronsted-Lowry acid is a chemical species that donates one or more hydrogen ions in a reaction.
In contrast, a Bronsted-Lowry base accepts hydrogen ions.
Which is an example of a three
dimensional measurement of
volume?
A. 120 cubic meters
B. 120 grams
C. 120 miles per hour
D. 120 units
Answer:
It's A. 120 cubic meters
explain what happens in terms of heat diffusion
Answer:
here is the answer
Explanation:
Diffusion is a process of passive transport in which molecules move from an area of higher concentration to one of lower concentration.
Which methods separate a mixture according to the size of the particles?
A. distillation and evaporation
B. filtration and chromatography
C. filtration and evaporation
D. distillation and chromatography
Answer:
Only one of these methods separates compontents based on size.
The answer is filiration and chromatography.
Explanation:
describe five factors which affect propagation of sound.. please describe in details.
Answer:
Explanation:
Image result for describe five factors which affect propagation of sound.. please describe in details.
There are several important factors which affect the propagation of sound: geometric spreading, atmospheric effects, and surface effects. These are discussed separately below. This refers to the spreading of sound energy as a result of the expansion of the wavefronts.
Who developed the gas law that relates pressure and temperature?
Explanation:
physicist Robert Boyle
Answer: Boyle
Explanation: Educere Answer
Which of the following represents the electronic structure of three elements in the periodic table
A. 2.8.1 2.8.3 2.8.4 B. 2.8 2.8.1 2.8.2
C. 2.7 2.8 2.8.1 D. 2.1 2.8.1 2.8.8.1
Answer:
a
Explanation:
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why are you taking chemistry class?
Answer:
Because it helps me connects other sciences to each other, such as biology, physics, geology, and environmental science. Basic knowledge of chemistry helps you to read and understand product labels. Chemistry can help you make informed decisions.
(Happpy to help!)
Answer:
Because chemistry class is very important.
Nonmetallic materials that are strong, brittle, resistant to heat and attack by chemicals, and are typically made from clay are known as:________
If a stronger solution of sodium bicarbonate was used in beaker C, would it require more or less hydrochloric acid to neutralize and why?
Part A; A stronger solution of sodium bicarbonate require more hydrochloric acid will be required
Part A; The reason why more HCl is required is due to the presence of more hydroxyl ions in the solution
The reason arriving at the above responses are as follows;
Part A
Sodium bicarbonate, NaHCO₃, is baking soda = A basic salt; has the capacity to deprotonate water
Hydrochloric acid, HCl = An acid
The reaction between sodium bicarbonate and hydrochloric acid is presented as follows;
NaHCO₃ + HCl → CO₂ + H₂O + NaCl
The equation for the ionic reaction is as follows;
Na⁺(aq) + HCO₃⁻(aq) + H⁺(aq) + Cl⁻(aq) → Na⁺(aq) + Cl⁻(aq) + H₂O(l) + CO₂(g)
In water, we have;
HCO₃⁻(aq) + H₂O(l) ⇄ H₂CO₃(aq) + OH⁻(aq)
The presence of a stronger solution of sodium bicarbonate, will produce more hydroxyl ions, OH⁻(aq), which will require, more HCl to neutralize
Therefore, if a stronger solution of sodium bicarbonate was used, more hydrochloric acid will be required
Part B
The solution of stronger sodium bicarbonate will contain a higher concentration of hydroxyl ions and therefore, require more HCl, to neutralize
Learn more about acid base reaction here:
https://brainly.com/question/24220098
Filtration is the most appropriate method for separating a solution of water and which substance?
A. alcohol
B. salt
C. sand
D. sugar
Answer:
Sand
Explanation:
If you get salt or sugar in your water, you have to legit desalinate it to get the water and item out. You need to evaporate the water by increasing temperature and then lower temperature to separate the substances.
If you have alcohol, you need to distill it by trapping it and stuff.
With sand, the molecules are much larger which lets you separate the substances easily.
For example, on a beach, you can slap a handful of sand in your pail, but the sand sinks to the bottom right? You can just pour out the water.
Which of the following statements best defines the actual yield of a reaction? (5 points)
Select one:
a.The amount of product measured after a reaction
b.The ratio of measured yield over theoretical yield
c.The maximum amount of product that can be obtained Incorrect
d.The ratio of measured yield over stoichiometric yield
Answer:
its d
. . . . . . . .. . . . . . . . .. .
Outline the steps involved in the synthesis of 4-bromo-3-nitro-phenol from 4-bromobenzoic acid.
Answer:
[tex]4 - bromobenzoic \: acid \\ ↓ \\ { \tt{ \{soda \: lime \: and \: calcium \: oxide}} \\ { \tt{and \: heat \}}} \\ ↓ \\ 4 - bromobenzene \\ ↓ \\ { \tt{ \{chlorine \: and \: aluminium \: chloride \}}} \\ ↓ \\ 4 - bromo - 2 - chlorobenzene \\ ↓ \\ { \tt{ \{water \: and \: sodium \: hydroxide \}}} \\ ↓ \\ 4 - bromophenol \\ ↓ \\ { \tt{ \{conc.nitric \: acid \: at \: 60 \degree c}} \\ { \tt{and \: sulphuric \: acid \}}} \\ ↓ \\ 4 - bromo - 3 - nitrophenol[/tex]
In brackets, are the reagents
Are ALL acids and based
harmful to humans?
Iron has a density of 7.86 g/cm3. Calculate the volume (in dL) of a piece of iron having a mass of 4.59 kg .
how to find the average speed of something
Answer:
if you want to find average speed so u need to use this formula
Average speed = [tex]\frac{Total Displacement}{Total Time}[/tex]
