The Oxyfuel gas or flame refers to a group of welding processes that use the flame produced by the combination of a fuel gas and oxygen as the source of heat.
<u>Explanation:</u>
- Oxy-fuel welding is a process that utilizes fuel gases and oxygen to weld metals. Oxyfuel gas or flame refers to a group of welding processes that utilize the flame delivered by the blending of fuel gas and oxygen as the source of heat.
- This flame is utilized for cutting and welding of two metallic pieces. This is done due to the heat produced by cutting and welding of two metallic pieces together by heating to the melting point.
- An oxyhydrogen flame is utilized for cutting and welding of two metallic pieces due to the heat produced by the flame, i.e, 2800 ° C. At this temperature, the metal gets softened effectively and thus it can easily separate or welded together.
Answer:
Kc = 77.9
Explanation:
To solve this equilibrium problem we will use an ICE Chart. We recognise 3 stages: Initial (I), Change (C) and Equilibrium (E). We complete each row with the <em>concentration or change of concentration in that stage</em>. Since the container is of 1.00 L, the initial concentrations are [NO] = 0.103 M and [Br₂] = 9.75 × 10⁻² M and the equilibrium concentration of Br₂ is 6.21 × 10⁻² M. Then,
2 NO(g) + Br₂(g) ⇄ 2 NOBr(g)
I 0.103 9.75 × 10⁻² 0
C -2x -x +2x
E 0.103 -2x 9.75 × 10⁻² - x 2x
Also, we know that
[Br₂]eq = 9.75 × 10⁻² - x = 6.21 × 10⁻² ⇒ x = 3.54 × 10⁻² M
We can use the value of x to find the concentrations at equilibrium:
[NO] = 0.103 -2x = 0.103 - 2 . 3.54 × 10⁻² = 3.22 × 10⁻² M
[Br₂] = 6.21 × 10⁻² M
[NOBr] = 2x = 2 . 3.54 × 10⁻² = 7.08 × 10⁻² M
We can use these concentrations in the equilibrium constant (Kc) expression.
First blank- Quickly.
Second blank- Collide.
Third blank- Compressed
Hope I helped,
-CSX :)
Answer:
Explanation:
Find the molar mass of H2SO4
2H = 2 * 1 = 2
S = 1 * 32 =32
O4 = 4*16 = 64
total 98
Find the number of mols in 71.5 grams
mols = given mass / molar mass.
given mass = 71.5
molar mass = 98
mols = 71.5/98
mols = 0.7296 mols of H2SO4
Find the moles of H2O
From the Balanced equation, every mol of H2SO4 produces 2 moles of H2O
mols water = 2 * 0.7296
mols water = 1.4592
That's as far as I can take you. I have to know a great deal more to get the volume of H2O
Answer:
z+4
Explanation:
An isotope of an element, atomic number Z, has a mass number 2z+4. How many neutrons are there in the nucleus of the element?o
protons + neutrons =mass number
so
z +neutrons = 2z+4
neutrons = 2z+4 - z=z+4 which is the # of neutrons in the nucle
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