Answer:
Explanation:
This experiment demonstrate that a plant don't need only water to grow and increase its mass.
A plant will also need nutrients located in the soil that will help it grow and increase its mass.
Both bc your buying the product and a service of them installing it
Answer: 996 mmHg
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at NTP, weighs equal to the molecular mass and contains avogadro's number
of particles.
According to the ideal gas equation:

P = Pressure of the gas = ?
V= Volume of the gas = 25.5 L
T= Temperature of the gas = 13°C = (273+13) K = 286K
R= Gas constant = 0.0821 atmL/K mol
n= moles of gas= 1.42
(760mmHg=1atm)
Thus pressure of this gas sample is 996 mm Hg.
Answer:
It's balanced but not in the lowest form
Explanation:
The actual equation is given by

ANSWER
An atom of element is electrically neutral because the number of positive protons are equal to number of negative electrons.