Answer:
Metamorphic rocks
Explanation:
these rocks were once igneous or sedimentary rocks that has been under high pressure that enables it to change it's form.
The world made up of four elements according to my understanding which is fire,water,earth and air but copper is also part of the simple elements so the answer is copper
Answer:
Its pH value decreases.
Explanation:
<em>∵ pH = - log[H₃O⁺]</em>
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- As, concentration of hydronium ions increases, pH value decreases and the solution be more acidic.
- So, the right choice is: <em>Its pH value decreases.</em>
Answer:
K = 0,00000135 = 1.35 * 10^-6
Explanation:
Step 1: Data given
The equilibrium constant, K, for any reaction is defined as the concentrations of the products raised by their coefficients divided by the concentrations of the reactants raised by their coefficients. In this case, the concentrations are given as partial pressures.
The partial pressures of H2O = 0.0500 atm
The partial pressures of H2 = 0.00150 atm
The partial pressures of O2 = 0.00150 atm
Step 2: The balanced equation
2H2O(g) ⇆ 2H2(g) + O2(g)
Step 3: Calculate K
K = [O2][H2]² / [H2O]²
K = 0.00150 * 0.00150² / 0.0500²
K = 0,00000135 = 1.35 * 10^-6
Answer:
For a spontaneous reaction to occur there must be work done to the system. This may be agitation with heat or by mixing the sample. Another way is by the system not being in an equilibrium state, it will react until it reaches equilibrium.
Hope this helps