Answer:
compound machine
Explanation:
A machine made of two or more simple machines is known as a compound machine.
They are usually derived by coupling or joining simple appliances together to make one compound device.
- This is done to increase mechanical advantage and to perform different tasks.
- Common examples are bicycles, shovels etc.
Answer:
Explanation:
The chemical equation is
For simplicity, let's rewrite this as
1. Initial concentration of NH₃
2. Calculate [OH]⁻
We can use an ICE table to do the calculation.
B + H₂O ⇌ BH⁺ + OH⁻
I/mol·L⁻¹: 0.100 0 0
C/mol·L⁻¹: -x +x +x
E/mol·L⁻¹: 0.100 - x x x
Check for negligibility:
\
3. Solve for x
4. Calculate the pH
2) B. Dependent Variable. This is because the rate of the algae growth depends on the other variables. 3) D 4) F 5) C 6) A 7) E 8) B
Only for electrons I think not to sure