<h3><u>Answer;</u></h3>
Hydroelectric power
<h3><u>Explanation</u>;</h3>
- Hydroelectric power is produced when a turbine converts the kinetic energy of falling water into mechanical energy. Then a generator converts the mechanical energy from the turbine into electrical energy.
- Hydroelectric power plants uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.
IUPAC name of Na2O is sodium oxide.
<h3><u>Explanation</u>:</h3>
Na2O is the ionic compound containing sodium and oxygen in molar ratio of 2:1. This compound is named by International Union for Pure and Applied Chemistry as Sodium oxide.
This substance is used in a varied number of cases. Its the anhydride of the popularly used base sodium hydroxide. So adding waste produces sodium hydroxide solution. Its used in glass and ceramic factories too. Sodium silicates are also produced from this substance. Its also used to produce soda ash.
Answer:
Suppose that several objects composed of different materials are heated in the same manner. Will the objects warm up at equal rates? The answer: most likely not. Different materials would warm up at different rates because each material has its own specific heat capacity. The specific heat capacity refers to the amount of heat required to cause a unit of mass (say a gram or a kilogram) to change its temperature by 1°C. Specific heat capacities of various materials are often listed in textbooks. Standard metric units are Joules/kilogram/Kelvin (J/kg/K). More commonly used units are J/g/°C. Use the widget below to view specific heat capacities of various materials. Simply type in the name of a substance (aluminum, iron, copper, water, methanol, wood, etc.) and click on the Submit button; results will be displayed in a separate window.
Explanation:
Answer:
In chemistry, yield, also referred to as reaction yield, is a measure of the quantity of moles of a product formed in relation to the reactant consumed, obtained in a chemical reaction, usually expressed as a percentage
Answer is: 6,48 mol of GeF₄ are needed.
Chemical reaction: GeH₄ + 3GeF₄ → 4GeF₃<span>H.
n(</span>GeF₃H) = 8 mol.
n(GeF₄) = ?
from chemical reaction: n(GeF₃H) : n(GeF₄) = 4 : 3.
8 mol : n(GeF₄) = 4 : 3.
4n(GeF₄) = 24 mol.
n(GeF₄) = 6 mol ÷ 0,926.
n(GeF₄) = 6,48 mol.
