The red semicircle shown in the weather chart represents warm front.
Oxygen is the second. The first is nitrogen which makes up 78% of air. Oxygen makes up 21% of air.
Answer: im pretty sure it is b but a is also good i going to be honest it a multi chose and i ant good at those
Explanation:
Answer:
4HCl + SiO2 → 4H2O + SiCl4
axit clohidric Silic dioxit nước Silic tetraclorua
Axit
Explanation:
Answer:
2.52atm for sure
Explanation:
We know that:
P1= 2.80atm
T1= 400k
T2= 360k
And we want to find P2= ?
We have an equation: P1/T1 = P2/T2
Multiple both side by T2 to remove it
P2 = 2.52