- When you are sitting constant at bench your blood vessels and pressure of muscles are stable there.
- When you sudden wake up blood also wakes up .
- The gravity pulls it down from head.
- So you feel lightweight.
Muscular and nervous system involved
Answer: Between 2 nitrogen atoms, 3 covalent bonds will form. So answer choice A is the correct answer.
Answer: -5
Explanation: you can not subtract a higher number from a lower as that doesn't work so you need to subtract 6 off 1 which equals -5.
Answer:
40.0 L.
Explanation:
- We can use the general law of ideal gas: <em>PV = nRT.</em>
where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in K.
- If P and T are constant, and have different values of n and V:
<em>(V₁n₂) = (V₂n₁).</em>
V₁ = 50.0 L, n₁ = 2.0 moles,
V₂ = ??? L, n₂ = 2.0 mol - 0.4 mol = 1.6 mol.
∴ V₂ = (V₁n₂)/(n₁) = (50.0 L)(1.6 mol)/(2.0 mol) = 40.0 L.
Answer:
a welding torch requires 4122.8L of ethylene gas at 0.64 atm