Answer:
Science is the study of the nature and its behaviour.
Technology refers to methods and devices that are the result knowledge.
A scientific model is a diagram of an object, process or system that is used to help make the subject matter of the diagram easier to understand.
Hydrogen on sharing its one electron with chlorine results in formation of hydrogen chloride molecule and chlorine and hydrogen complete its octet by sharing one electron of each and thus forming a single covalent bond by sharing of two electrons.
Im pretty positive it’s velocity i remember learning about this last year in physics sorry i don’t have an explanation but i’m pretty sure it’s velocity
The three hypotheses that explain why being born in the United States
leads to a higher chance of developing allergies include the following:
- The weather patterns in the United States bring more allergens compared to other countries.
- Other factors which might influence why there are more children with allergies in the United States include climate, obesity, and the typical western diet with high amounts of processed foods.
- The hygiene hypothesis claims that children in the United States are not exposed to enough germs in their infancy and childhood to develop their immune system‘s properly.
Allergies are caused by a host of factors such as :
These factors is the reason why the chosen hypotheses are the most
appropriate.
Read more about Hypotheses here brainly.com/question/10854125
<u>Answer:</u> The age of the mineral sample is 
<u>Explanation:</u>
The equation used to calculate rate constant from given half life for first order kinetics:
where,
= half life of the reaction = 
Putting values in above equation, we get:
We are given:
Mass ratio of K-40 to Ar-40 = 0.812 : 1.00
Rate law expression for first order kinetics is given by the equation:
![k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}](https://tex.z-dn.net/?f=k%3D%5Cfrac%7B2.303%7D%7Bt%7D%5Clog%5Cfrac%7B%5BA_o%5D%7D%7B%5BA%5D%7D)
where,
k = rate constant = 
t = time taken for decay process = ? yr
![[A_o]](https://tex.z-dn.net/?f=%5BA_o%5D)
= initial amount of the sample = [1.00 + 0.812] = 1.812 grams
[A] = amount left after decay process = 1.00 grams
Putting values in above equation, we get:
Hence, the age of the mineral sample is
