Plz answer asap which is an example of an internal stimulus? a: a sudden change of air temperature b: an artifical light that attracts incects c: amount of water from a rain storm d: a decrease in oxygen levelsin the blood during exsircise
Solved
Show answers
More tips
- B Business and Finance How to Open an Online Store? A Detailed Guide for Beginners...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
Answers on questions: Chemistry
- C Chemistry Go on my Profile and answer a question for me plz it would be very helpful lol. :3...
- C Chemistry Story that ends in i have never found such a kind person ever since ...
- C Chemistry How many moles are are 5.90 x 10^24 atoms of sodium ?...
- C Chemistry What is an atomic mass unit?...
- C Chemistry Could someone give me the answer to this? I have no clue at all...
- C Chemistry 5. In order for a bowling ball to move down the lane and strike pins, what must be applied to the ball? (ICP.1.2) A. A force less than any other forces that might...
- C Chemistry Defects in the Mendeleev periodic table...
- C Chemistry An investigation was conducted to compare two used a microscope to observe the cells in a cross cell from the leaf of a freshwater plant (diagram B...
- C Chemistry Write the chemical equation for the reaction that takes place when solutions of potassium sulfate and barium nitrate are mixed....
- C Chemistry How many boron (B) and sulfur (S) atoms are in B253?...
Ответ:
D. A decrease in oxygen levels in the blood during exercise
Ответ:
Explanation:
2Mg + O₂ = 2MgO .
2 moles of Mg reacts with one mole of O₂
2 moles of Mg loses 4 moles of electrons because there are 2 positive charges on each atom of Mg .
On each atom of oxygen there are 2 negative charges
on two atom of oxygen there are 4 negative charges
on one mole of O₂ there are 4 moles of negative charges
Hence ,
when 2 moles of Mg loses 4 moles of electrons , 4 moles of negative charges are gained by oxygen.
when 2.5 moles of Mg loses 5 moles of electrons , 5 moles of negative charges are gained by oxygen.