16 protons and 18 electrons gives the atom a -2 charge because there are 2 more electrons than protons. If it were 16 protons and 16 electrons, the charge would be 0 or neutral.
Answer: 1.09 g
Explanation:
If we use the approximation that 1 mole is 22.4 L, then setting up a proportion,
- 1/22.4 = x/0.345 (x is the number of moles in the sample)
- x = 0.0154 mol
Since the mass of a mole of chlroine is about 70.9 g/mol, (0.0154)(70.9) = 1.09 g (to 3 s.f.)
Answer:
The pressure of the gas inside the plastic bag is 1.971 atm
Explanation:
Since temperature did not change, it means it is constant. This will then be Boyle's law. Thus
P1V1 =P2V2
Where P1 is the initial pressure = 10.2 ATM, P2 is the final pressure which is to be calculated.
V1 is the initial volume = 800.0 mL and V2 is the final volume of the gas = 4.14 L
From the formula,
P2 = P1V1/V2
= 10.2×800÷4.14
= 1.971 atm
B. The study of matter and energy.
Because physical science is everything that doesn't include organic things.