Answer:
Mass of reactant and mass of product must be equal.
Explanation:
Law of conservation of mass:
According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.
Explanation:
This law was given by French chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
For example:
In given photosynthesis reaction:
6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂
there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.
wind can be measured using a tool called an anemometer
Atmospheric pressure is commonly measured with a barometer
temperature is measured with a thermometer
Precipitation is measured by using a rain gauge.
Answer:
The answer to your question is: B. 2
Explanation:
Magnesium is located in group IIA, that means that it has 2 electrons in its outermost shell, and these are the electrons that it can lose to become stable.
Oxygen is located in group VI A, that means that it has 6 electrons in its outermost shell and needs to electrons to become stable.
Mg⁺² + O₂²⁻ ⇒ MgO
Height, length, and width. Or time, volume, depth. Or temperature, angle, and pressure.
Because the Earth rotates through two tidal
"bulges" every lunar day, coastal areas
experience two high and two low tides
every 24 hours and 50 minutes.
