![subject](/tpl/images/cats/fizika.png)
Physics, 29.04.2021 23:10 dasdsadsafdhgifsdu
Practice writing the compounds different ions will make when they react. I will give you 2 ions that will react. You need to write the correct formula for the compound that those two ions will create.
For example:
When potassium reacts with sulfur
first write the ions for each element
K1+ and S2-
Then write your basic compound formula. Put the positive ion first, then the negative ion
KS
Then use the charge number to determine how many of each atom is required to make a neutral compound like we did in the nearpod video (remember you don't need to write 1s in your formulas)
K2S This formula is complete!
Write the formulas for the following reactions:
When calcium reacts with oxygen
when lithium reacts with sulfur
when caesium reacts with phosphorus
when strontium reacts with iodine
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:10
The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:50
Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 21:30
The diagram shows a boulder rolling down a hill into a valley and then up the opposite hill. at which position does the boulder have the greatest kinetic energy? a b c d
Answers: 2
You know the right answer?
Practice writing the compounds different ions will make when they react. I will give you 2 ions that...
Questions
![question](/tpl/images/cats/en.png)
English, 17.12.2019 13:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 17.12.2019 13:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 17.12.2019 13:31
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.12.2019 13:31
![question](/tpl/images/cats/mat.png)
Mathematics, 17.12.2019 13:31
![question](/tpl/images/cats/biologiya.png)
Biology, 17.12.2019 13:31
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/es.png)
Spanish, 17.12.2019 13:31
![question](/tpl/images/cats/mat.png)
Mathematics, 17.12.2019 13:31
![question](/tpl/images/cats/mat.png)
Mathematics, 17.12.2019 13:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 17.12.2019 13:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 17.12.2019 13:31
![question](/tpl/images/cats/biologiya.png)
Biology, 17.12.2019 13:31