1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vikki [24]
1 year ago
9

What state of matter is Polaris, the north star?

Chemistry
1 answer:
Anni [7]1 year ago
8 0

The state of matter of Polaris, the north star is gas.

<h3>What are stars made of?</h3>

Stars are made up of a mixture of hot gases.

The mixture consists of helium and hydrogen. Hydrogen burns into helium to give starts a shining appearance when observed from a far distance.

Thus, the state of matter of all stars, including the north star, is gas.

More on stars can be found here: brainly.com/question/21521087

#SPJ1

You might be interested in
Select the response(s) below that correctly describe(s) part of the process by which elements combine to form ionic compounds.
salantis [7]
B
Metals are non bionic
8 0
2 years ago
Xà phòng hoá hoàn toàn 22,2g hỗn hợp gồm 2 este HCOOC2h5 và ch3cooch3 bằng dung dịch naoh 1m ( đun nóng) thể tích dung dịch naoh
lisabon 2012 [21]

Answer:

I can't understand your language? can you write in English

I'm sorry

4 0
3 years ago
A student constructs a coffee cup calorimeter and places 50.0 mL of water into it. After a brief period of stabilization, the te
Grace [21]

Answer:

The calorimeter constant is  = 447 J/°C

Explanation:

The heat absorbed or released (Q) by water can be calculated with the following expression:

Q = c × m × ΔT

where,

c is the specific heat

m is the mass

ΔT is the change in temperature

The water that is initially in the calorimeter (w₁) absorbs heat while the water that is added (w₂) later releases heat. The calorimeter also absorbs heat.

The heat absorbed by the calorimeter (Q) can be calculated with the following expression:

Q = C × ΔT

where,

C is the calorimeter constant

The density of water is 1.00 g/mL so 50.0 mL = 50.0 g. The sum of the heat absorbed and the heat released is equal to zero (conservation of energy).

Qabs + Qrel = 0

Qabs = - Qrel

Qcal + Qw₁ = - Qw₂

Qcal = - (Qw₂ + Qw₁)

Ccal . ΔTcal = - (cw . mw₁ . ΔTw₁ + cw . mw₂ . ΔTw₂)

Ccal . (30.31°C - 22.6°C) = - [(4.184 J/g.°C) × 50.0 g × (30.31°C - 22.6°C) +  (4.184 J/g.°C) × 50.0 g × (30.31°C - 54.5°C)]

Ccal  = 447 J/°C

5 0
3 years ago
Which state of matter has a constant volume, but changes shape?\?
never [62]
Liquids stays the same volume but the bonds are spaced out enough that it can take the shape of whatever container it’s in.
8 0
3 years ago
A substance with a mass of 50.0 g has a temperature change of 40.0
grigory [225]

Answer:

Mass=50.0g

H=670J

change in temperature=40

using. c=h÷m×change in temperature

c=670÷50×40

C=670÷2000

C=0.335jkg-1k-1

7 0
2 years ago
Read 2 more answers
Other questions:
  • What property of the mixture of gelatin in water tells you that the mixture is not a solution
    11·1 answer
  • A 65 kg diver jumps off a 10 m platform.
    12·1 answer
  • What is the wavelength of the line corresponding to n=4 in the balmer series? express your answer in nanometers to three signifi
    6·1 answer
  • 5f2 (g) + 2nh3 (g) → n2f4 (g) + 6hf (g) if you have 58.5g nh3, how many grams of f2 are required for a complete reaction? how ma
    8·1 answer
  • What would the wavelength of a photon be if its energy is 4.79x10-19 J?
    5·1 answer
  • Phosphorus is most abundant in the
    9·1 answer
  • When dynamic equilibrium is achieved, the rate of the forward and backward reactions go to zero. (T&amp;F)
    12·1 answer
  • Compare and contrast atoms elements compounds and molecules
    11·1 answer
  • The action of warm air rising and cold air sinking plays a key role in the formation of severe thunderstorms. If the warm surfac
    15·2 answers
  • 7. Sinif caliskan yayinlar cevapları ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!