Answered

Looking for reliable answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Explore our Q&A platform to find in-depth answers from a wide range of experts in different fields. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

What is open system?
What is close system?
What is the valency of an atom?
State Heisenberg uncertainty principle
Define endothermic reaction

Sagot :

rose5656

Answer:

1) open system is the system through which both matter and energy and enter as well as leave

ex - open beaker

2) close system is the system through which only energy can leave but matter cannot

ex - pressure cooker.. ( energy leave as air)

3) Valency of an atom is the no. of outer most electron which can participate in a reaction.

4). Heisenberg uncertainty principal states that it is impossible to measure or calculate exactly, both the position and the momentum of an object

5) The reaction in which heat is required to make products are called endothermic reaction. it cools down the surrounding .

We appreciate your time on our site. Don't hesitate to return whenever you have more questions or need further clarification. We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.