You want to place a piece of glass tubing into a ruber stopper after the tubing has been fire polished and cooled. This is best done by

Answers

Answer 1

Answer:

All of the above

Explanation:

This is correct


Related Questions

which should I choose?

Answers

Answer:

liquid

Explanation:

thank me

How does increased temperature affect the amount of salt, carbon, and other substances able to dissolve in the ocean? What are the resulting effects?

Answers

Answer:

For solid salts that are soluble in the sea water, as the sea water temperature rises, the solubility of the salt in the water increases. The accompanying increase in the kinetic energy of solvent water molecules with the increase in the temperature of the seawater results in the increase in the number of solute salt inter-molecular bonds being broken by the energetic solvent molecules resulting in increasing solubility of the solids

However, for gases, the increase in temperature of the sea water results in a decrease in the solubility of all gases. The process is also explainable by the kinetic theory such that a rise in temperature of the gas seawater solution increases the kinetic energy of both the solvent water and the solute gas. The higher energy gases are moving much faster and are then  then able to separate from the less mobile liquid gas combination.

The resulting effects

1) The surface (topmost) hotter portions of the sea have fewer living organisms

2) Fishes that come to the surface frequently gas for air by bringing their head above water

3) Most of the life forms are located deep within the sea

4) Formation of water movement cycles within the ocean and polar water bodies

5) Mechanical nature of the sea compared to fresh water bodies

Explanation:

a. 165 lbs = ?? g
b. 12.01 cm = ?? m

Answers

Answer:

a) 74842.7 g

b) 0.1201 m

Explanation:

1 pound is 453.592 g  

165 pound = 74842.7 g

12.01 / 100 = 0.1201 m

Which of the following is a compound?
Select the correct answer below:
Water
Sodium
Chlorine
Oxygen

Answers

water

explanation:

water consists one oxygen atoms and two hidrogen of atom.

compound: have two or more atom

Hope this helps :)

PLZ HELP!!! ILL MARK BRAINLIEST!!! Would you consider the practice of "ghost hunting” to be closer to science or pseudoscience, based on the information provided in the article? Provide two examples to support your answer.

Answers

Answer:

I would consider the practice of "ghost hunting” to be closer to pseudoscience than science because the work described in the article mostly lacks process and is subjective. In the article, people looking for evidence of ghosts do not set up controlled experiments with repeated trials. Instead, they take several measurements and make guesses about what might be causing the results they see. The people in the article also base conclusions on observations such as feeling a "heavy presence” or a "sudden chill.” These are subjective observations.

Explanation:

Answer:I would consider the practice of "ghost hunting” to be closer to pseudoscience than science because the work described in the article mostly lacks process and is subjective. In the article, people looking for evidence of ghosts do not set up controlled experiments with repeated trials. Instead, they take several measurements and make guesses about what might be causing the results they see. The people in the article also base conclusions on observations such as feeling a "heavy presence” or a "sudden chill.” These are subjective observations.

Explanation:

A neutral atom has an equal number of positive and negative charges. If a neutral fluorine atom has 9 protons and 10 neutrons, how many electrons will it have?

Answers

Answer:

9 electrons.

Explanation:

Number of electrons = number of protons

= 9.

Plz answer these questions :

Answers

Answer:   2) see below

                 3) 2AgCl → 2Ag + Cl₂

Explanation:

2)

Step 1: Crushing & Grinding   CuFeS₂(s)→  CuFeS₂(s)

Step 2: Froth Flotation           CuFeS₂(s)---->  CuFeS₂ (l)

Step 3: Roasting   2CuFeS₂(l) + 3O₂(g) → 2FeO(s) + 2CuS(s) + 2SO₂(g)

Step 4: Converting matte to blister Cu₂S(l) + O₂(g) → 2Cu(l) + SO₂(g)

Step 5: Anode Casting           Cu(l) → Cu(s)

Step 6: Electrolytic Refining   Cu(s) → Cu(s)

            Anode: Cu(s) → Cu+ (aq) + 2e-

                     Cathode: Cu2 + (aq) + 2e- → Cu(s)

see diagram below for illustration of steps

3) When silver chloride (solid) is exposed to sunlight, it decomposes into silver (solid) and chlorine (gas).

The equation is written as:  [tex]2AgCl_{(s)}\xrightarrow{\text{sunlight}}}2Ag_{(s)}+Cl_{2(g)}[/tex]

Write the number in scientific nation form

Answers

Answer:

its already in scientific notation form however its ordinary or real form is -0.005682

Explanation:

scientific notation

when a number is expressed with some power of 10 multiplied by a number between 1 to 10 is called scientific notation

Consider the development of atomic theory. The last piece of the atomic puzzle was the discovery of
A)
electrons in orbitals.
B)
the neutron in the nucleus.
C)
a dense, centrally located nucleus.
D)
the location of the electron cannot be determined.

Answers

Answer:

The answer will be B

Explanation:

Answer:

B.the neutron in the nucleus

Explanation:

Is one unlit match an example of a physical or chemical change, or a physical or chemical property?​

Answers

I believe it’s physical property because there is no chemical reaction to an unlit match‍♀️

What is the formula for 2-methylnonane

Answers

Answer:

C10H22

sorry if im wrong

What is the solution for x in the equation? -3x + 7x − 8 = 34 + 9x − 2

Answers

Answer:-8

Explanation:

edmentum

The solution for the given linear equation can be solved by simplifying the equation. The value of x is obtained as - 8.

What is linear equations?

Linear equations are the equations which shows a linearity with a second expression which is similar to the first but having different mathematical operations and signs.

By solving linear equations we can solve for the unknown value of x. The value of x can be obtained by taking the whole expression to one side and which is having a constant value.

Given, - 3x + 7x - 8 = 34 + 9x -2.

          = 4x - 8 = 32 + 9x

          = 4x - 8 - 9x = 32

             -5x = 40

              x = - 40/5 = - 8.

Hence, solution of the given equation is  -8.

To find more on linear equations, refer here:

https://brainly.com/question/29739212

#SPJ2

HELP!!! What two volume units have the same value?

Answers

Answer:

1milliliter=1cubic centimeter

Answer:

volume and density I'm pretty sure

2. Briefly describe how the law of conservation of mass was developed.

Answers

Answer:

History of the Law of the Conservation of Mass

The ancient Greeks first proposed the idea that the total amount of matter in the universe is constant.This law states that, despite chemical reactions or physical transformations, mass is conserved that is, it cannot be created or destroyed within an isolated system.

Explanation:

Is the following statement a fact,, opinion, or theory? Why?
Scrambled eggs are better for breakfast than cereal. I can stay full longer if I eat eggs.​

Answers

Answer:

i think opinion cause you could be saying in my opinion, scrambled eggs are better for breakfast than cereal.

Is Coca Cola a homogeneous mixture

Answers

Answer:

Yes

Explanation:

Coca Cola is a homogenous mixture, just like sugar, salt, and more. Hope this helps!

Answer: Yes

Explanation: Coca cola is a homogeneous mixture because the syrup and water are mixed evenly throughout the solution. For example, an unopened soda in a bottle has a uniform composition and is a homogeneous mixture. Once you open the bottle, bubbles appear in the liquid. The bubbles from carbonation are gasses, while the majority of the soda is liquid. An opened can of soda is an example of a heterogeneous mixture.

Hope this helps^^

gold has a density of 19.3 g/ml. if you have 4.0 grams of gold, what is the volume of the sample

Answers

Answer:  The volume is 37.0 cm3Au

Explanation:

Answer:

4.825 mL

Explanation:

19.3 g/mL * 1/4.0 g = 4.825 mL

HELP ASAP!! 15 PTS!! Match each of the unknown ions to its appropriate description.
1. B+
2. A−
3. D2+
4. C2−
a. A nonmetal that gained one electron
b. A metal that lost one electron
c. A nonmetal that gained two electrons
d. A metal that lost two electrons

Answers

Answer:

1 and a

2 and b

3 and c

4 and d

Explanation:

+ = gained

- = lost

when there is a two it has two electrons

I also had a high school friend check my accuracy

HOPE THIS HELPS!!!! :)

<3333333333

Answer:

The answer above is wrong. Under explanation it is correct.

Explanation:

1.  c

2. b

3. a

4. d

I took my test and got it wrong using above answers, but these are correct! ; /

Which of the following are common behaviors of scientists? a.doing background research b. testing ideas with experiments c. analyzing data from tests d. reporting results to others e. all of the above​

Answers

Answer:

Explanation: It is B. all above

Red dye can be made from a mixture of yellow dye and magenta (a deep purplish red) dye. How could you determine if a particular red dye is made from a single dye or from a mixture of yellow and magenta dyes?

Answers

Answer:

When preforming the experiment the red dye will separate if it had other dyes included in it

Explanation:

Paper chromatography is a good way of separating coloured substances mixed together in a solution. During chromatography, the solvent soaks up the paper past the spot of the mixture and the different substances move upwards too. They move different distances depending on what kind of substance they are, what the solvent is and how far the solvent itself travels.


What is the mass number of an atom with 17 protons, 17 electrons, and 20 neutrons?

Answers

The mass number of this particular element is 37

An element with 17 protons will ALWAYS be chlorine.
The mass number is found by adding the element’s protons and neutrons.
protons+neutrons=mass number

Here is the math if needed,
17+20=37

Therefore the mass number is 37

I hope this helped!

If the pressure of a 2.00 L sample of gas is 50.0 kPa, what pressure does the gas exert if its volume is
decreased to 20.0 mL?
Which equation should you use?
V1 V2
T1 T2
P1V1 = P2V2
V1 V₂
N1 N2

Answers

Answer: P1V1 + P2V2

Explanation:

PLEASE HELP
You have four water samples at different temperatures. In which sample are the molecules vibrating at the fastest speed?
O A. water at 37°C
O
B. water at 99°C
C. water at 99°F
OD. water at 299K

Answers

B water at 99c since it is the hottest

Which of the following are examples of plasmas?

Answers

Answer:

i will tell some examples of plasmas they are:

1.lightning

2.solar wind

3.welding arcs

4.stars(including the sun)

5.the earths's ionosphere

Answer: which of the following are examples of plasmas?

Choices: 1. Ice cubes 2. Tails of comets 3. A gas fire 4. The ionosphere 5. A neon sign 6. A flashlight

Explanation:

The Answer: is 2. Tails of comets 4. The ionosphere 5. A neon sign

10g sugar is dissolved in 90g water.The density of the solution is 1.09g/ml.Calculate mass/volume percentage concentration of the solution.​

Answers

The concentration of a solution is a measure of the amount of solute dissolved in a solvent. There are many ways to indicate concentration; molarity, molality, normality, and %(w/v)#. To prepare a 10% glucose solution, mass out 10 g glucose (solute), and add enough water (solvent) to make a 100 mL solution.

PLZ HELP!! ILL MARK BRAINLIEST!! What claim do ghost hunters make about energy-detecting devices? They can determine how many spirits are in one location. They can produce sounds that may be confused with ghosts. They can sense the presence of spiritual energy. They can distinguish good spirits from evil spirits.

Answers

Answer:

[See Below]

Explanation:

I mean they say all those things , but if it has to do with just the device I'm guessing it'd most likely be They can sense the presence of spiritual energy  since they claim it's the device they are using to tell them if there is something there they can't see.

Answer:

The Awnser is C (pls give me brainliest if this awnser is correct)

Explanation:

What is the connection between Archimedes and the Mass-Volume lab

Answers

Answer:

Explanation:

This question is not very clear, however, going by the key words in the question, Archimedes' principle shows a relationship between mass and volume.

Archemedes' principle states that when a body is fully or partially immersed in fluid, it is acted upon by an upward force which is equal to the weight of the fluid displaced by the body.

The volume displaced here can be determined using the formula

Density of liquid = mass displaced ÷ volume

Hence, volume = mass displaced ÷ density of liquid

A student wants to see how temperature affects the
production of gases when yeast and water are mixed. She
mixes them at different temperatures in clean soda
bottles. She then places a balloon over the top of each
bottle.
Which statement best describes the use of the balloons in this experiment?

Answers

Answer:

To monitor Pressure increase

Explanation:

the more pressure, the higher the production of the gas, which can be recorded, more pressure meaning higher production. Then vary the temperature.

Answer: Logical, Because it allows the student to catch any invisible gases given off. I hope this helps

Explanation:

Currents shape rivers over long periods of time.
Please select the best answer from the choices provided
True
False

Answers

Answer:

True

Explanation:

Most rivers begins life as a tiny stream running down a mountain slope..... small streams meet and join together, growing larger and larger until the flow can be called river. On its way down, the water shapes the landscape by wearing away rocks and carving out a network of valley.

HIFT|d/c/ 113 r 12
a b/c 9.416666667
ard Deviation SD (MODE 2
Data: 20X5, 30X4, 40, 10X6
ALPHA SC SC1
20 ALPHA 5 DATA 3
[1] 6][ALPHA
SHIFT
3 a b/d 40
9r5r 12
10 aim
160 mt at
and
helium
5. sample 07
25 degree
occupies
volume
volume of
it occupy 17
the
IS
will
dear
pressure
degree celsius. What
eased
to
8 atm
at
constant
temperature?​

Answers

Answer:

hey guys are doing. . I have been in business for a new job and I will be a great time , and I will be a good time

Explanation:

for me, but the best. . the first one. . the first one

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