The answer is C) The current in each bulb remained the same even though another bulb was added.
D. 2Na (s) + MgF2 → 2NaF (s) + Mg (s)
Explanation:
From the given choices, 2Na (s) + MgF2 → 2NaF (s) + Mg (s) is balanced
A balanced equation is one that obeys the law of conservation of matter which states that "matter is neither created nor destroyed but transformed from one form to another".
We expect to find the same name of atoms on both sides of the equation.
let us examine the choices;
Zn (s) + HCl (g) → ZnCl2 (s) + H2 (g)
Reactants Products
Zn 1 1
H 1 2
Cl 1 2
Na (s) + O2 (g) → Na2O
Reactants products
Na 1 2
O 2 1
Na (s) + MgF2 → 2NaF (s) + Mg (s)
Reactants products
Na 1 2
Mg 1 1
F 2 2
2Na (s) + MgF2 → 2NaF (s) + Mg (s)
Reactants products
Na 2 2
Mg 1 1
F 2 2
learn more:
Balanced equation brainly.com/question/2947744
#learnwithBrainly
The pipe that produces the highest-frequency sound is the 5 cm long pipe.
According to the Fundamental Principle, the length of the tube of the pipe and its frequency is inversely proportional.
This means that the longer the tube, the lower the frequency and vice versa. Therefore, between the 25cm long pipe and the 5cm long pipe, the shorter pipe produces the highest-frequency sound.
Answer:
the responding variable is the water boiling
Explanation:
a responding variable is the same thing as a dependent variable and an independent variable you change the independent variable is the amount of salt, the control group is how long water takes to boil without adding salt, and a constant is the same amount of water
