Answer:
A is correct
Explanation:
B speaks of the skeletal system
C speaks of the respiratory system
D speaks of the thoracic cavity and respiratory system
- Hope that helps! Please let me know if you need further explanation.
Answer:
0.2g
Explanation:
mass=mole/molar mass
molar mass of oxygen is 32
6.06/32=0.19 or 0.2 units=grams
Answer:
14.3 mL
Explanation:
Assume the student used 0.113 g ascorbic acid and 0.0900 mol·L⁻¹ NaOH.
1. Balanced chemical equation.
The formula of ascorbic acid is H₂C₆H₆O₆ (MM = 176.12 g/mol).
However, for the balanced equation, let's write it as H₂A.
2. Moles of ascorbic acid
3. Moles of NaOH
The molar ratio is 2 mmol NaOH:1 mmol H₂A.
4. Volume of NaOH
Answer:
0.33 moles
Explanation:
to find the number of moles,
moles = number of atoms / avogadro's number ie 6.02 x
moles = 2.0 x / 6.02 x
moles = 0.33 mol
Answer:
Moon I am guessing. Another option is comet, but they normally don't orbit a planet.