The total pressure of the mixture of gases is equal to the sum of the pressure of each gas as if it is alone in the container. The partial pressure of a component of the mixture is said to be equal to the product of the total pressure and the mole fraction of the component in the mixture.
Partial pressure of hydrogen gas = 1.24 atm x .25 = 0.31 atm
Partial pressure of the remaining = 1.24 atm x (1-.25) = 0.93 atm
The correct answer is
D burning wood
because it's changing the wood.
The other's are physical changes because it's still the same thing, it's just in a different form.
Glad I could help, and good luck!
AnonymousGiantsFan
Answer:
Only anions
Explanation:
Polyatomic positive ions often have common name ending with the suffix anions
<h2>
Answer:</h2>
0.152 moles
<h3>
Given that:
</h3>
The mass of the oxygen gas produced = 4.87 g
Also, The molar mass of oxygen gas, = = 32 g/mol
The formula for the calculation of moles is shown below:
moles = 
<u>*</u>
Thus,
moles = 
Both given values and the answer is in 3 significant digits.
brainlist pls?
*i put a dash between mass and taken as formulas do no spaces
<h3><u>Answer;</u></h3>
Fe2+(aq) + 2OH(aq) ----> Fe(OH)2(s)
<h3><u>Explanation;</u></h3>
We first write down the balanced equation for this reaction:
FeCl₂(aq) + 2NaOH(aq) → 2 NaCl(aq) + Fe(OH)₂(s)
This is a precipitation reaction, where two soluble salts are mixed together in solution forms to make a precipitate.
Then,we can now write the ionic equation for this reaction, that is:
Fe²⁺(aq) + 2Cl⁻(aq) + 2 Na⁺(aq) + 2OH⁻ (aq) → 2 Na⁺(aq) + 2Cl⁻(aq) + Fe(OH)₂(s)
Now, we need to cancel the spectator ions, which are ions that are present on both sides in the equation.
So, the equation becomes;
Fe2+(aq) + 2OH(aq) ----> Fe(OH)2(s)
