to get dry ice to the triple point

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Answer:

Explanation:

Definition of Prokaryote. a single-celled organism (such as bacteria) that lacks a nucleus and cannot be seen with the naked eye. Examples of Prokaryote in a sentence. 1. The scientist studied the prokaryote under the microscope to see if its single-cell would multiply in certain conditions.

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Prokaryotes are a single celled organism that is microscopic. They do not have a distinct nucleus with a membrane. They don't have other specialized organelles either. They also include bacteria and archaea.

"Prokaryotes are so small you cant see them with the bare human eye!"

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Answer:

Protons give the atomic number

Explanation:

Answer:

6

Explanation:

To determine the number of neutrons we round 10.8 to 11 and subtract the atomic number (5) and get 6; therefore, boron has 6 neutrons.

Option C, slopes are same but y intercepts are different is the correct answer

Answer:

Gravity

Explanation:

According to Newton's Law of Gravity, an object with mass will attract another object with mass.

Answer:

473 °C

Explanation:

The following data were obtained from the question:

Initial volume (V1) = 200 mL

Initial temperature (T1) = 100 °C

Final volume (V2) = 400 mL

Final temperature (T2) =..?

Next, we shall convert celsius temperature to Kelvin temperature. This can be obtained as follow:

T(K) = T (°C) + 273

Initial temperature (T1) = 100 °C

Initial temperature (T1) = 100 °C + 273 = 373 K

Next, we shall determine the final temperature of the water as follow:

Initial volume (V1) = 200 mL

Initial temperature (T1) = 373 K

Final volume (V2) = 400 mL

Final temperature (T2) =..?

V1/T1 = V2/T2

200/373 = 400/T2

Cross multiply

200 × T2 = 373 × 400

200 × T2 = 149200

Divide both side by 200

T2 = 149200/200

T2 = 746 K

Finally, we shall convert 746 K to celsius temperature. This is illustrated below:

T(°C) = T(K) – 273

T(K) = 746 K

T(°C) = 746 – 273

T(°C) = 473 °C

Therefore, the temperature of the second sample when it starts to boil is 473 °C

Answer:

VVV

Explanation:

Covalent bonds are formed when atoms share electrons and ionic bonds are formed when positive and negative ions bond to form an ionic compound.

Answer:

D. create metal works of art. The bronze age was the age of crafting out of metal. So, using swords of metal would fit directly into the bronze age as they're metal.

Answer:

D.

Explanation:

Translation:

A. make a barbecue

B. organize a picnic

C. swimming in the pool

D. to go skiing

Barbecue is usually a summer activity, so we eliminate that.

It would be too cold for a picnic!

It would be too cold to go swimming, and that's more of a summer thing!

Skiing is a snow activity, and since it is winter, it is likely to know.

physical property is conductivity

Answer: The third one, changes can occur to physical properties but the chemical composition remains the same.

Explanation: Chemical changes change the chemical composition. Physical changes do not.

Answer:

Explanation:

boiling

According to the forces of attraction, boiling takes place when the kinetic energy of molecules overcomes the intermolecular forces.

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

Learn more about forces of attraction,here:

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2 HClO(aq) + Ca(OH)2(aq) = 2 H2O(l) + Ca(ClO)2(aq) is the balanced equation

Answer:The atoms in gases are far apart from each other, so they are much more disordered than either liquids or solids.

Explanation:

the two middle ones is the answer

Answer:

The answer is A

Explanation:

My teacher gave me the answer before the test that we took on 11/12/2020

Hope this helps anyone else who has the same question.

The halogens have similar properties, the correct option is A.

Halogens are the group 17th compound of the periodic table, It consists of elements like Fluorine(F), Chlorine(Cl), Bromine(Br), and Lodine(I).

The halogens have the following properties.

They all react with hydrogen to create acids.

All of them are fairly harmful.

Salts are easily formed when they react with metals.

Their outer shell contains seven valence electrons.

They are electronegative and very reactive.

Low melting and boiling points characterize the halogens. This is a common characteristic of non-metals.

As you move lower in the group, the melting and boiling points then rise.

The elements have different atomic mass, atomic radius, and a different number of protons.

They are grouped together because they all have similar properties.

To know more about Halogens

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Answer:

False. Chemical changes are always physical changes

Answer:

False

Explanation:

Answer:

Nitrogen

Explanation:

:) pls mark brainliest

Answer:

Nitrogen

Explanation:

To find your answer, pay attention to the number of protons. Protons define an element's atomic number.

Answer:

[tex]4.7 * 10^{-7} meters[/tex]

Explanation:

Angstrom can be defined as a metric unit of length for used for the measurement of the wavelength of light (optics) such as visible light, x-rays, ultraviolet light, gamma rays etc. The symbol for Angstrom is "A" and it is named after the 19th century physicist from Sweden, named Anders Jonas Angstrom.

Given the following data;

Wavelength of spectral line = 4700A

To convert this value to meters;

One Angstrom is mathematically equal to [tex] 10^{-10} meters [/tex]

[tex] 1 Angstrom = 10^{-10} meters[/tex]

[tex] 4700 Angstrom = X \; meters[/tex]

Cross multiplying, we have;

[tex] X = 4700 * 10^{-10}[/tex]

X =  [tex]4.7 * 10^{-7} meters[/tex]

Therefore, 4700A is equal to 4.7e-7 or 0.00000047 meters.

Answer:

[He] 2s² 2p⁴

Explanation:

If you're looking for the answer in subshell form, here it is:

[tex]1sx^{2} 2sx^{2} px^{4} (2.6)[/tex]

Quote:

"Where I walk, I walk alone. Where I fight, I fight alone."

- Akuma

Answer:

0.00025 m3

Explanation:

it just is; used conversion table

Answer:

1

Explanation:

you would take 4 subtract 0 which is 4 and divide it by 4 which is 1

Answer:

Its right

Explanation:

The chemical formula of calcium dichromate is CaCr207

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\ [/tex]

So we have

[tex]volume = \frac{220}{11} \\ [/tex]

We have the final answer as

Hope this helps you

Answer: Earth's average albedo is about 0.3. In other words, about 30 percent of incoming solar radiation is reflected back into space and 70 percent is absorbed. A sensor aboard NASA's Terra satellite is now collecting detailed measurements of how much sunlight the earth's surface reflects back up into the atmosphere.

Explanation: ik im annoying thanks

Answer:

C. Malleability

Explanation:

The malleability of aluminum allows it to be formed into thin sheets.

Physical properties tells us about what a substance is when no change is occurring to its constituents.

Answer:

C

Explanation:

Answer:

Air from the trumpet moved it

Explanation:

Answer: Salt is primarily composed of sodium chloride.

Explanation:

Answer:

atomic mass. You will have created an isotope.

Explanation:

Answer:

everything including the space...

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