1- Fundamental materials of any matter
2- a material made up of two or more different substances
3- something composed of two or more separate elements
Answer:
Zn(s) produces H₂ when is added to a strong acid solution
Explanation:
Look at this example:
2Zn (s) + 2HCl (aq) → 2ZnCl (aq) + H₂ (g)
It is a redox reaction, where the zinc is oxidized and the H, reducted.
Zn → Zn⁺ + 1e⁻
2H⁺ + 1e⁻ → H₂
Answer:
pickles are ligit good
Explanation:
i like pickles but not his
The new volume will be 33.5 L.
Explanation:
The kinetic theory of gases confirm that the volume occupied by gas molecules will be directly proportional to the temperature of the molecules and inversely proportional to the pressure of the molecules. We can consider the moles to be n = 1. Then, the equation for the gases will be
PV = nRT
Here, P is the pressure, V is the volume, R is the gas constant and T is the temperature.
So, P = 523 Torr, T = 7.50 °C = 7.50+273.15 = 280.65 K and the gas constant R = 62.363 Torr L mol⁻¹K⁻¹.
![523*V = 1 * 62.363*280.65 \\\\V = 33.5 L](https://tex.z-dn.net/?f=523%2AV%20%3D%201%20%2A%2062.363%2A280.65%20%5C%5C%5C%5CV%20%3D%2033.5%20L)
Thus, the new volume will be 33.5 L.
Plants and animals RE a carbon source during respiration. they take in Oxygen and give out Carbon (IV) oxide as a by product. Combustion of fossil fuels is also source of carbon (IV) Oxide.
Formation of fossils from dead plants and animals is a carbon sink. photosynthesis is also a carbon sink as plants take in carbon (IV) Oxide that is used to make food.