Convert the following to Celsius
16) 100°K
17) 200°K
18) 273°K
19) 350°K

Answers

Answer 1

Answer:

16) -173.15cel

17)-73.15cel

18)-0.15

19)76.85

Explanation:

I converted kelvins to cel

Brainly pls


Related Questions

A sample has a PH of 4, and another sample has a PH of 9. Which sub is the base? How many times basic is it??

Answers

Answer:

the first one

Explanation:

the first one is the base because it has a lower PH

Convert 49 lbs into grams

Answers

Answer:22226.026 gExplanation:

To get an approximate result, multiply the mass value by 454.

hope this help!

What part of the atom is responsible for the behavior of the alpha particles?

Answers

Answer:

nucleus

Alpha particles are subatomic fragments consisting of two neutrons and two protons. Alpha radiation occurs when the nucleus of an atom becomes unstable (the ratio of neutrons to protons is too low) and alpha particles are emitted to restore balance.

Explanation:

Convert 0.0134 Liter to millimeter

Answers

Answer:

13400 millimeters.

Explanation:

Multiply the volume value by 1e+6

2
A train travels 25 km in 0.5 hrs. How fast is the train going?​

Answers

Answer:

15

Explanation:

Answer:

50 km/h

Explanation:

Since in half an hour it has gone 25km, double that (25 x 2) and you get your answer in km/h. Therefore, the train is going 50km/h.  

What do we call the (+) ion in an ionic bond? *
O Cation
O Anion
O Metalloid
O Covalent

Answers

Answer:

cation

Explanation:

a cation is an ion with a postitive charge. This (cat)ion (+) = cats are good , anion (onion) are not good (-)

Calculate the entropy change when 4.31 g of H2 reacts with O2 according to the reaction

2 H2(g) + O2(g) → 2 H2O(l)

at 298 K and 1 atm pressure. The standard molar enthalpy of formation of H2O(l) at 298 K is −285.8 kJ/mol. The corresponding free energy of formation is −237.2 kJ/mol.

Answer in units of J/K.

Answers

Answer:

Explanation:

ΔG  =  Δ H - T ΔS

Given , ΔG = -237.2 kJ / mol

Δ H = - 285.8 kJ / mol

T = 298

Putting the values in the equation

-237.2 = - 285.8 - 298 x ΔS

ΔS  = .163 kJ / mole K

moles of water formed = 4.31 / 2 = 2.155

entropy change required = 2.155 x .163 kJ / K

= 351.26 J / K .

A car travels at 35.0 mi/hr. How far has it gone in 2455 seconds?

Answers

Answer:

The answer is 23.8 miles

Explanation:

The distance covered by an object given it's velocity and time taken can be found by using the formula

distance = velocity × time

From the question

velocity = 35.0 mi/hr

time = 2455 s = 0.68 hr

We have

distance = 35 × 0.68

We have the final answer as

23.8 miles

Hope this helps you

2.18 x 10^6 ng = 2.18 x 10^? mg

Answers

Answer:

2.18 * 10^12 mg

Explanation:

1 nanogram [ng] = 10^6 milligram [mg]

2.18 * 10^6 ng/ 1 ng = X mg / 10^6 mg

X mg = 2.18 * 10^12 mg

Answer:

2.18 * 10^12 mg

Explanation

How can charged objects interact without touching

Answers

Electrostatic forces are non-contact forces; they pull or push on objects without touching them. Rubbing some materials together can result in something called 'charge' being moved from one surface to the other. Charged objects pull on other uncharged objects and may either push or pull on other charged objects(hopefully this helps)

Can someone please help

Answers

Answer:

3

Explanation:

3 ampers (it says in the problem)

Question 3 (4 points)
A dipole bond is formed when electrons are not shared equally in a covalent bond, resulting in a partial negative charge on one end of the
molecule and a partial positve charge on the other end.
O True
O False

Answers

The answer is true.

Crystallisation is a separation technique used to separate____ solids from a liquid solvent.

Answers

Answer:

separate soluble solids from liquid

Explanation:

A in Chemistry

Crystallization is a separation technique used to separate solute solids from a liquid solvent.

What is Crystallization?

Crystallization is the process of disuniting or separating two substances or molecules that are mixed, and are of different forms of matter. Such as solid and liquid. The process separates mixtures by three processes. These processes are freezing, precipitation, and deposition.

It is the main process of separating solid from liquid. In this process, the solute came above the liquid in crystal form and this is called precipitation.  

Freezing separates the substance that has a different freezing point.  By deposition, the substance that is solid and called solute is deposited below the liquid in the container.    

                                                                                                                                 

Thus, crystallization separates the solute solids from a liquid solvent.

To learn more about Crystallization, refer to the link:

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Jose adds five grams of a chemical to one liter of liquid and observes a reaction. If the reaction is endothermic, what will happen?
A
The liquid's mass increases; therefore, the volume of the liquid will increase
B
The liquids' mass decreases; therefore, the volume of the liquid will decrease.
С
Energy is released during the reaction; therefore, the temperature of the liquid will increase.
Energy is absorbed during the reaction; therefore, the temperature of the liquid will decrease.
D

Answers

Answer:

D. Energy is absorbed during the reaction; therefore, the temperature of the liquid will decrease

Explanation:

In a chemical reaction, the reaction is said to be ENDOTHERMIC if the reaction utilizes or uses energy instead of given it off. In this reaction, Jose adds five grams of a chemical to one liter of liquid and observes the reaction.

According to this question, the reaction is ENDOTHERMIC. This means that energy is absorbed or used up during the reaction; therefore, the temperature of the liquid will decrease i.e. the liquid used in the reaction will become COLDER.

Maria wants to determine which type of disinfectant kills the most bacteria.

Which of the following is the best way for Maria to determine this?
A.
Interview ten different people to determine which type of disinfectant they prefer.
B.
Put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate.
C.
Ask ten different companies that make disinfectants which type is best.
D.
Put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Answers

A I think thats what I would put

how many molecules are in 3.40L of H2O vapor at STP?*

Answers

Answer:

9.14 x 10^22 molecules

Explanation:

Is it true or false??. . .Help me please

Answers

Answer:

I think the answer is true

The elements least likely to form bonds are found in which group? 15 16 17 18

Answers

Answer:

i think 15 but dont get mad if not (❁´◡`❁)

Explanation:

Answer:

The answer is 18

Explanation:sorry if im wrong TwT

Can you tell me the Valence Electron of each element?​

Answers

Answer:

Lithium oxide.......................

Explanation:

6. magnicium chloride

2.Barium chloride

3. calcium nitride

4. lithium oxide

5. Aluminium sulphide

plzz mark me brainliest

If we know the force of an object in Newtons) and we know how fast the object accelerates in ms"), then we can easily find the mass of the object by
dividing the _ by the _

Answers

Answer:

If we know the force of an object in Newtons) and we know how fast the object accelerates in ms"), then we can easily find the mass of the object by

dividing the force by the mass

A basketball weighs approximately 1.35 kg. What is this mass in grams (g)?

step by step

Answers

Answer:

1350 g

Explanation: just add a 0

Which of the following is the conjugate acid of H2P04- ?
A. HAP04
O B. PO 3-
O C. HP04-2
O D. H3PO4

Answers

Answer:

phosphoric acid H3PO4

The conjugate acid of H₂PO⁴⁻ is H₃PO₄. Therefore, option D is correct.

A conjugate acid is a species that is formed when a base accepts a proton (H⁺). It is the species that is one proton (H⁺) more acidic than the original base.

The base is the species that can accept a proton (H⁺), and the conjugate acid is the species that is formed when the base accepts the proton. The conjugate acid has one additional proton compared to the base.

Conjugate acids play an important role in acid-base reactions as they are formed when bases accept protons, and they can donate protons in subsequent reactions to regenerate the original base.

Learn more about conjugate acids, here:

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Electron Dot Structures

Draw the electron dot structures for the following elements:

Magnesium (Mg)


Lithium (Li)


Argon (Ar)


Carbon (C)


Sulfur (S)


Helium (He)


Aluminum (Al)


Nitrogen (N)


Silicon (Si)


Hydrogen (H)


Calcium (Ca)


Neon (Ne)


Potassium (K)


Boron (B)


Chlorine (Cl)

Answers

Answer:

surf (S)

tide (T)

champion (C)

Explanation:

wag mo nlng pansinin

What mass of ethanol will All
a 250.0 ml container if its
density is 0.789 g/ml?

Answers

Answer:

The answer is 197.25 g

Explanation:

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

mass = Density × volume

From the question

volume = 250 mL

density = 0.789 g/ml

So we have

mass = 250 × 0.789

We have the final answer as

197.25 g

Hope this helps you

What volume of O2 would be required to react with 4.6 grams of Na

Answers

Volume of O₂ = 1.12 L

Further explanation

The reaction equation is the chemical formula of reagents and product substances  

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products  

Reaction

4Na+O₂ ⇒ 2Na₂O

Ar Na = 23 g/mol

mol Na :

[tex]\tt mol=\dfrac{4.6}{23}=0.2[/tex]

mol O₂ :

[tex]\tt \dfrac{1}{4}\times 0.2=0.05[/tex]

Assume at STP (0 C, 1 atm), 22.4 L for 1 mol , then volume of O₂ :

[tex]\tt 0.05\times 22.4=1.12~L[/tex]


The unit for force is kg m/s.
True Or false?

Answers

The unit for force kg m/s is true

In an isotope, what does the 'u' stand for?
For example: Lithium isotope: Li-6 6u
The u after 6

Answers

The u is called atomic mass unit.
It is a unit of weight
Like we have kilograms,grams,milligrams, On the atomic level,the unit of weight measurement is AMU or just u for short.

write the molecular fotmula of water​

Answers

Answer:

H20

Explanation:

Answer:

hope it helped you

Explanation:

H2O (u have to write ✍️no 2 below H.

How is the human body like a stone arch?

Answers

Answer:

It is like an arch because it bends horizontal just like we do and the legs of the arch support the stone like our feet and legs support the weight of us.

Explanation:

Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!!!

Answers

I beleive it would be 0.8

the volume of water alone is 4.8

the volume of rock and water is 5.6

you would subtract them both to find the volume of the Rock.

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