Answer:
emission at a high speed or energy which often forms electrons
Answer:
V = 11.2 L
Explanation:
Hello there!
In this case, according to the ideal gas equation:

It is possible to compute the volume as shown below:

Whereas the moles are computed are computed given the mass and molar mass of oxygen:

Now, since the STP stands for a temperature of 273.15 K and a pressure of 1 atm, the resulting volume is:

Best regards!
Answer:
Acid ammonium carbonate // Ammonium bicarbonate.
Explanation:
Hello, a 4 is missing in the fist H, thus:

The presence of the hydrogen between the ammonium and the carbonates characterizes the salt as an acid salt, so you could name it as acid ammonium carbonate or ammonium bicarbonate (similar to the sodium bicarbonate which is
.
Best regards.
Answer:
Solution is 4.67% by mass of salt
Explanation:
% by mass is the concentration that defines the mass of solute in 100g of solution.
In this case we have to find out the mass of solution with the data given:
Mass of solution = Mass of solute + Mass of solvent
Solute: Salt → 14.2 g
Solvent: Water → 290 g
Solution's mass = 14.2 g + 290g = 304.2 g
% by mass = (mass of solute / mass of solution) . 100
(14.2 g / 304.2g) . 100 = 4.67 %
The first option: the basic unit of the nervous system