Answer:
CStO3
Explanation:
What is need to be done here is to first divide the percentage compositions by the respective atomic masses. Atomic mass of strontium is 90, that of oxygen is 16 and that of carbon is 12.
Let’s proceed with the divisions:
St = 59/90 = 0.656
O = 33/16 = 2.0625
C = 8/12 = 0.667
Now, we divide through all by the smallest answer which is 0.656:
St = 0.656/0.656 = 1
O = 2.0625/0.656 = 3.144 = 3
C = 0.667/0.656 = 1.0167 = 1
The empirical formula is thus CStO3
Answer:
Option (C).
Explanation:
ATP is the energy currency of the cell that are directly used by the cell. ATP helps in the contraction of muscles, propagation of the nerve impulse and in the chemical synthesis of the molecules.
The ATPase enzyme is required for the hydrolysis of the ATP molecule. The ATPase hydrolyzes the third phosphate group and not the first phosphate group when the energy is needed. The gamma or third phosphate first removed during ATP hydrolysis.
Thus, the correct answer is option (C).
Answer:
Two human needs are food and water. We need food to survive so we dont starve to death. And water is most important because without water after around five days, you die. Heat technology could be fire. We use fire to distill salt water. Distilling salt water boils the bacteria and so it would be safe to drink. We also use fire to cook the food we have gotten or hunted so we dont get infected with deadly bacteria and viruses.
Explanation:
Hope this helps. Have a nice day!
Ans: Decomposition
A decomposition reaction is one in which a compound breaks down into thwo or more smaller compounds.
The given reaction is:
NaHCO3 + H2O → CO2 + NaOH + H2O
In this reaction sodium bicarbonate breaks down to carbon dioxide and water. Therefore, this represents a decomposition reaction.
Answer:
<h2>
Kevlar has unique properties such as:</h2><h2><em>
High tensile strength</em>
, <em>
high toughness</em>
, and <em>
chemical stability </em>
at high temperatures<em>
</em>
in polyamides (polymer with repeating unit links by amide bonds.) </h2><h3>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</h3>
Δ What is Kelvar? Δ
~ Kevlar is a heat-resistant and strong synthetic fiber
~ Kevlar is widely used as a friction material in the automotive industry, and a combustion protection material in the aerospace industry. <em>~Looked that up!</em>
<h3>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</h3>
<em>Hope I helped!!!</em>
<em>GL :)</em>