Answer:
Explanation:
Distillation is a separation technique used to separate constituents of a mixture based on difference in there boiling points. Constituents of crude oil are also separated based on there boiling points. When the crude oil is heated above 250°C, diesel oil, gas oil, mineral oils, fuel oil, waxes and tars will be left in the mixture while constituents such as kerosene, fuel gas and petrol would have been separated/distilled out.
Write the formula for sodium chloride.
Write the formula for sodium oxide.
Answer:
The formula for sodium chloride is NaCl
The formula for sodium oxide is Na2O
Explanation:
Witch object would be attracted by a magnet?
Answer:
Any type of Ferromagnetic metals a quick and easy example is a nail made out of iron, where as a penny made out of zinc and copper both of them being non magnetic.
Explanation:
how many atoms are in the outer-most shell in order for it to be stable?
Answer:
8 Electrons
Explanation:
Got it from siri lol :) Have a good day.
PLEASE HELP WILL MARK BRAINLIEST
Answer:
1. protons
2. hydrogen
3. protons plus neutrons
4. nuclear force
5. they are composite particles
6. proton-positive-inside nucleus; neutron-no charge-inside nucleus; electron-negative-outside nucleus/electron cloud
7. sublevels
8. 4 energy levels
Explanation:
Calculate the energy required to heat 622 g
mercury from 37°C to 42°C. The specific
heat capacity of Hg(l) is 0.138 J/g.° C.
Answer in units of cal.
Answer:
102.58 cal.
Explanation:
Given data:
Mass of mercury = 622 g
Initial temperature = 37°C
Final temperature = 42°C
Specific heat capacity of mercury = 0.138 J/g.°C
Energy required = ?
Solution:
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = 42°C - 37°C
ΔT = 5°C
Q = 622 g × 0.138 J/g.°C × 5°C
Q = 429.18 J
J to cal:
429.18 J × 1 cal /4.184 j
102.58 cal.
What are some of the challenges and reasons for
sending people back to the Moon by 2024?
Answer: Prob to see if anything new has came or has happened
Explanation:
Answer:
NASA Publishes Artemis Plan to Land First Woman, Next Man on Moon in 2024. ... We're going back to the Moon for scientific discovery, economic benefits, and inspiration for a new a generation of explorers. As we build up a sustainable presence, we're also building momentum toward those first human steps on the Red Planet.
Explanation:
Four students are carrying out different laboratory procedures. Piroja is mixing baking soda and vinegar to see if it reacts. Jason is heating salt water over a burner until the water evaporates. Kali is putting crushed ice and ice cubes on a table to see which melts first. Francisco is separating iron filings from sand using a magnet. Which experiment relies on convection? Piroja’s experiment Jason’s experiment Kali’s experiment Francisco’s experiment
Answer: Jason experiment
Explanation:
I just took the test
Answer: Jason's Experiment
Someone please help
Answer:
M = molar concentration
n = moles of solute
v = liters of solution
Explanation:
The seasons of the Earth are the result of --
a
the tilt of the Earth and its orbit around the Sun.
b
the Sun having a large gravitational pull.
c
the orbit of the moon around the Earth.
d
the continual rotation of the Earth on its tilted axis.
Answer:
the tilt of the Earth and its orbit around the Sun.
Explanation:
The seasons on the earth is as a result of the tilt of the earth and its orbit around the sun.
These phenomenon causes the four seasons of the earth. The earth is tilted at an angle of 23.5° from the perpendicular.
This causes the differences in yearly exposure of parts of the earth to solar radiation.
At some points, a part can experience very high insolation whereas it is low in other parts.
These variations results in the seasons on the earth.
Which structure carries instructions for producing the proteins that help make a person’s hair curly?
phosphate
deoxyribose
lipid
gene
Answer: Bipalium kewense is a species of flatworm that can reproduce sexually; however, instead it usually breaks into two pieces, each of which becomes a fully functioning adult.
What is the main method of reproduction for these flatworms?
binary fission
fragmentation
sporulation
fertilization
Answer:
The correct answer should be :D). Gene on edg.
Which of the changes below would make Paul an effective interpersonal communicator?
I. Change his opening to a more calm and positive approach.
II. In his feedforward he should establish an appropriate timeframe and location.
III. He should add more criticism in his feedback.
IV. In the business section of his conversation he should include a list of everything Pat has
ever done wrong.
Answer:
i would say number 3 that was number 3
By changing his opening to a more calm and positive approach pauld can become a an effective interpersonal communicator.Thus, option A is correct.
What is interpersonal communication?Interpersonal communication is the way of communicating messages with each other. From person to person the way or tone of interpersonal communication will change.
We have to keep a good and polite behaviour to everyone when communicating with them. If we are going to criticize more it will hurt some people more than we expect.
To approach in a positive manner, we have to avoid prejudices and predictions and more expectation about others. But keep them in a polite manner in a very genuine friendship.
Interpersonal communication is important in any field especially in business field where, people have to gather , plan and contribute with each other. Hence Paul have to open more calm and positive approach.
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The company's chief financial officer recognizes the need for an upgrade to the smart watches but does not understand why the budget you proposed requests more than the purchase price of the updated software. How would you respond to these concerns?
the extra money in the budget is for If a employees watch is broken or needs to be fixed we can give out temporary watch for few days until the watch is fixed.
plz give brainlest
Identify the Lewis acid in this balanced equation:
Upper A g superscript plus, plus 2 upper N upper H subscript 3 right arrow upper A g (upper N upper H subscript 3) subscript 2 superscript plus.
Answer:
1
Explanation:
Ag+
From the given reaction, it is clear that, Ag is gaining electrons from the base NH₃ . Hence, according to Lewis concept of acids and bases, Ag⁺ is the Lewis acid.
What is Lewis concept of acids and bases ?There are various concepts to define acids and bases. Among which the first was Arrhenius theory. This theory states that, acids are substances which can furnish H+ in solution and bases are substances giving OH- in solution.
Then Bronsted- Lowry concept states acids as proton donor and bases as proton acceptors. The most applicable theory for acids and bases is Lewis concept.
According to Lewis theory of acids and bases, acids are electrons acceptors and bases are electron donors.
The given reaction is written as:
[tex]\rm Ag^{+} + 2NH_{3} \rightarrow Ag(NH_{3})_{2}[/tex]
Here, Ag⁺ is the Lewis acid which accepts an electron from the Lewis base NH₃.
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Which of the following elements would you expect to be ductile and
malleable?
Germanium (Ge)
Argon (Ar)
O O O O
Nitrogen (N)
O Zirconium (Zr)
Answer:
ductile - germanium
mellabe - zirconium
A Rottweiler dog is born with a long tail and when it is a few days old its tail is cut to be shorter. Several years later, the dog has eight puppies. Based on this information, how many puppies would you expect to have short tails like their mother's? A. 4 B. 8 C. 0 D. 2
Answer:
I think it's A or D
Explanation:
apologies if I get this wrong..
Answer:c.0
Explanation: hopefully this isn’t wrong, but wouldn’t it be 0 since it was something the mother did later on so it really wasn’t a trait of her? And also the mother didn’t born with a short tail?
Which of the following has more calories: table sugar or aspartame? Explain.
Answer: aspartame has more
Explanation: Aspartame contains 4 calories per gram (g), similar to sugar. It is, however, around 200 times sweeter than sugar. This means that only a tiny amount of aspartame is necessary to sweeten foods and drinks. so answer is aspartame
Aspartame has more calories. Why? Because aspartame manufactures four calorie kilograms of energy per gram when it's transfigured. Why is table sugar not the answer? Because table sugar manufactures 3.9 calorie kilograms. Also, aspartame is 200 times as sweet as table sugar, so it is eaten in much smaller portions. So your answer would be aspartame.
Dry ice goes directly from the solid phase to the gas phase. What phase
change is being represented? *
O Solid
O Sublimination
O Condensation
O
Freezing
Answer:
Sublimation is being represented.
Sublimation is the transition from solid to gas state
Hope this helps! Have a good day!
Answer:
Sublimation
Explanation:
Sublimation is when a solid turns into a gas
While cleaning out the garage, Duane found his old bicycle. Some of the paint had worn off, exposing the iron frame inside. Duane noticed that parts of the iron frame had become reddish-brown and rough and that parts were flaking off. What happened to Duane's old bicycle?
Answer:
It began to rust.
Explanation:
Because it had been left out for a long time
When do people generally experience rapid growth for a second time?
between the ages of 3 and 5
between the ages of 15 and 20
between the ages of 25 and 29
between the ages of 8 and 14
Which system contains the pituitary, adrenal, and thyroid glands?
reproductive
endocrine
circulatory
respiratory
Item 17
Which action occurs in the third stage of cell division?
The nuclear membrane disappears.
The nuclear material of a cell is copied exactly.
The cell forms two nuclei.
The nuclear material separates, with half moving to either side of the cell.
Answers:
1. People generally experience rapid growth for a second time between the ages of 15 and 20
2. The endocrine system contains the pituitary, adrenal, and thyroid glands.
3. The nuclear membrane disappears in the third stage of cell division?.
Explanation 1:
Between the ages of 15 and 20, puberty causes the release of multiple hormones, which causes rapid growth among other things.
Explanation 2:
The reproductive system contains the ovaries (female) and testes (male).
The endocrine system contains the pituitary, adrenal, and thyroid glands.
The circulatory system contains three independent systems that work together, the heart (cardiovascular), the lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic).
The respiratory/pulmonary system contains the nose, mouth, throat (pharynx), voice box (larynx), windpipe (trachea) , airways (bronchi) , and lungs.
Explanation 3:
Mitosis is the process in cell division where the nucleus divides into two nuclei, each with an identical set of chromosomes.
Interphase: occurs when the cell begins to replicate the nuclear DNA material
Stage 1 - Prophase: chromosomes begin to undergo a condensation process that will continue until metaphase. The spindle also begins to form as the two pairs of centrioles move to opposite poles.
Stage 2 - Prometaphase: Chromosomes are pulled in opposite directions by microtubules growing out from both poles of the spindle until balanced.
Stage 3 - Metaphase: The centromeres of all the cell's chromosomes line up at the equator of the spindle.
Stage 4 - Anaphase: The chromosomes move away from one another to opposite poles of the spindle.
Stage 5 - Telophase and Cytokinesis: The chromosomes reach the poles, the nuclear membrane then reforms, and the chromosomes begin to decondense. This is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.
Most of my sources say that the nuclear membrane occurs during prophase, but the stages are listed in this order. Regardless, your answer would be A. The nuclear membrane disappears.
I hope this helps!
Which group on the periodic table has the largest atoms?
Answer:
Cesium
hope this helps :)
(nh4)3po4 compound name
Which two is it brainliest and 100points:)
Answer:
b c
Explanation:
Answer:C
Explanation:
How many Hydrogen atoms are present in this molecular
formula: 3HCI?
Answer:
3
Explanation:
3 x H = 3H
Which question should you ask to find out the length of a planet's year?
answer correctly for a brainleist! :)
Answer:
summer
Explanation:
Why because the earth is around the sun the
Santiago's car has an overall average speed of 25 cm/s. If he could increase his car's overall average speed by 10%, what would his car's new overall average speed be?
Given:
The overall average speed = 25 cm/s.
The overall average speed increased by 10%.
To find:
The new overall average speed.
Solution:
We have,
Overall average speed = 25 cm/s.
The overall average speed increased by 10%. So, the new average speed is
New overall average speed = Initial average speed + 10% of initial overall average speed
[tex]\text{New overall average speed}=25+\dfrac{10}{100}\times 25[/tex]
[tex]\text{New overall average speed}=25+2.5[/tex]
[tex]\text{New overall average speed}=27.5[/tex]
Therefore, the new overall average speed is 27.5 cm/s.
in an equilibrium reaction with a Keq of 1×10^8,the-
A) reaction are favored
B) reaction is exothermic
C) products are favored
D) reaction is spontaneous
Why did Chief John Ross decided to sign a treaty with Albert Pike? A. The victory at Wilson’s Creek convinced Ross the Confederacy would win. B. He was working as a spy for the Union. C. He planned to ignore the treaty and move his tribe west. D. Because his tribe needed money to support their interests during the war.
Answer:
D, i think..
Explanation:
Answer:
It's A.
Explanation:
A.The victory at Wilson's Creek convinced Ross the Confederacy would win.
Nuclear reactions that continue because they form particles that carry on the reaction are called
a) self sustaining reaction
b) explosion
c) chain reaction
d) nuclear reaction
Answer:
Its NOT D its C. chain reaction
Explanation:
TOOK THE TEST
Why do clothes stick together when coming out of a dryer? And do the clothes start off as neutral?
here is what came up when i searched it up:
"The attraction between protons and electrons can also make clothes stick together in the dryer. When you dry clothes in the dryer, different fabrics rub together, and electrons from a cotton sock (for instance) may rub off onto a polyester shirt."
Sometimes, clothes can get stuck together after they come out of a dryer because of static electricity.
No, clothes may not start off as neutral. Whether clothes have static charges before going into the dryer depends on different things.
Why do clothes stick together when coming out of a dryer?Static electricity happens when certain things touch and create an uneven amount of electrons. This can cause one material to have a positive charge and the other to have a negative charge. When clothes move and touch each other in a dryer, this rubbing can cause static electricity.
If the clothes are cleaned and dried correctly, they should have no charge or be evenly charged.
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