Sound waves are produced by air flow coming from our lungs passing through our throat, more specifically our larynx and moving with two folds of tissue called vocal chords. The sound is made by the vibration of vocal chords, so the more stretched the chords are over the larynx, their frequency of vibration is higher, therefore producing higher-pitched sounds.
Answer:
Coal is not classified as a mineral because it comes from organic materials.
Explanation:
Minerals are naturally-formed substances that have a specific chemical makeup. They are created when elements combine. Minerals are <u>non-organic</u> and most have a set crystalline structure. Examples of minerals include diamond, azurite, beryl, and pyrite.
Answer:
2HCl(aq)+K2CO3(aq)→H2O(l)+CO2(g)+2KCl(aq)
Explanation:
HCl(aq)+K2CO3(aq)→H2O(l)+CO2(g)+KCl(aq)
2HCl(aq)+K2CO3(aq)→H2O(l)+CO2(g)+2KCl(aq)
H-1*2=2 H-2
Cl-1*2=2 Cl- 1*2=2
K -2 K-1*2=2
C- 1 C-1
O - 3 O-3
Answer:
Refrigerator
Explanation:
Think about it. Equilibrium is between 2 "places", and if you didn't open the fridge, there would be a buildup of cold air.
Because of that buildup, it would keep getting colder until it isn't possible to get cold anymore. That is equilibrium.
However, if you were to open the door for a very, very long time, you would lower the temp. inside the fridge, therefore causing for the room you are in to be slightly colder, and the fridge to decrease in cold. The fridge will still be slightly cold, but it won't be lukewarm if you leave it for 2 hours. (Unless it's broken)
That is equilibrium :)
Answer:
6 : Formula is for <u>cellular respiration</u>
Explanation:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP energy
C₆H₁₂O₆ = glucose
O₂ = oxygen
CO₂ = carbon dioxide
H₂O = water
ATP energy = Adenosine triphosphate energy
There are two types of respiration:
1. Aerobic respiration
2. Anaerobic respiration
Aerobic respiration
It is the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.
Glucose + oxygen → carbon dioxide + water + 38ATP
Anaerobic Respiration
It is the breakdown of glucose molecule in the absence of oxygen and produce small amount of energy. Alcohol or lactic acid and carbon dioxide are also produced as byproducts.
Glucose→ lactic acid/alcohol + 2ATP + carbon dioxide
