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hjlf
3 years ago
6

The lowest temperature at which a flammable liquid gives off enough vapor to form an ignitable mixture in air describes or defin

es its
Chemistry
2 answers:
Ugo [173]3 years ago
8 0
The flash point is the lowest temperature at which a flammable liquid gives off enough vapor to ignite.
Greeley [361]3 years ago
8 0

Answer:  Flash Point

Explanation:  Volatile substance is the substance which can easily catch fires.

Thus, there must be a point to define that temperature when the volatile substance catches fire given enough source of flame. This point is known as Flash Point.

Thus, Flash point is defined as the lowest temperature at which the flammable or volatile liquid catches fire and convert itself into the ignitable mixture when enough source of ignition is given.

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In its life history in which stage the silk moth spin the silk fibre for class 7th Plz answer ​
KiRa [710]

Answer:

in the 4\5thstage

Explanation:

because it's the time where silk worm separate

4 0
3 years ago
What element is mostly used in magnets, gold or cobalt?
zhannawk [14.2K]

Answer : The correct option is, cobalt.

Explanation :

Magnet : It is defined as a type of material which produces the magnetic field. Or we can say that a material that has the property of attracting an iron piece and producing the magnetic field.

The elements iron, cobalt and nickel are usually used in the making of magnets.

Hence, the element used to make magnets is, Cobalt.

5 0
4 years ago
Read 2 more answers
Find energy is the wavelength is 5.2x10^-7m (Show work)
RoseWind [281]

Answer:

E = 3.825×10⁻¹⁹ J

Explanation:

Wavelength of photon = 5.2 ×10⁻⁷m

Energy of photon = ?

Solution:

Formula:

E = hc/λ

h = plancks constant = 6.63×10⁻³⁴ Js

c = speed of wave = 3×10⁸ m/s

by putting values,

E = 6.63×10⁻³⁴ Js ×3×10⁸ m/s / 5.2 ×10⁻⁷m

E = 19.89×10⁻²⁶ J.m / 5.2 ×10⁻⁷m

E = 3.825×10⁻¹⁹ J

4 0
3 years ago
A gas at 300 k and 4.0 atm is moved to a new location with a temperature of 250 k. the volume changes from 5.5 l to 2.0 l. what
ella [17]

Answer:

9.17 atm

Explanation:

To find the new pressure of the gas, you need to use the following manipulated formula:

P₁V₁ / T₁ = P₂V₂ / T₂

In this formula,

P₁ = initial pressure (atm)              P₂ = new pressure (atm)

V₁ = initial volume (L)                    V₂ = new volume (L)

T₁ = initial temperature (K)            T₂ = new temperature (K)

Because you have been given values for all of the variables except for the new pressure, you can substitute them into the equation and simplify.

P₁ = 4.0 atm                                  P₂ = ? atm

V₁ = 5.5 L                                      V₂ = 2.0 L

T₁ = 300 K                                     T₂ = 250 K

P₁V₁ / T₁ = P₂V₂ / T₂                                                     <----- Given formula

(4.0 atm)(5.5 L) / (300 K) = P₂(2.0 L) / (250 K)           <----- Insert variables

0.073333 = P₂(2.0 L) / (250 K)                                   <----- Simplify left side

18.33333 = P₂(2.0 L)                                     <----- Multiply both sides by 250

9.17 = P₂                                                        <----- Divide both sides by 2.0

5 0
2 years ago
Read 2 more answers
Calcium nitrate, Ca(NO3)2 , is a(n) ___________________.
Aleonysh [2.5K]
B. Compound

Calcium nitrate is an inorganic compound
6 0
3 years ago
Read 2 more answers
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