Answer:
Explanation:
number 12 is magnesium i think which is group lla which is B alkaline earths
<h3>Answer:</h3><h2>Equilibrium constants are changed if you change the temperature of the system. Kc or Kp are constant at constant temperature, but they vary as the temperature changes. You can see that as the temperature increases, the value of Kp falls.</h2>
answer:
in plants
Transport manufactured food from the leaves to others parts of the plant
Facilitates gaseous exchange through the stomata in the leaves to other parts of the plant
in animal
Exchange of respiratory gases across respiratory services
Excretion of nitrogenous waste in some unicellular organisms
Explanation:
Hope it benefit
Answer:
The mass of helium in the balloon is 1.125 grams
Explanation:
Step 1: Data given
Volume of helium = 6.3 L
Molar mass of helium = 4.0 g/mol
Step 2: Calculate moles helium
1 mol gas = 22.4 L
6.3 L = 0.28125 moles
Step 3: Calculate mass of helium
Mass = moles helium * molar mass helium
Mass = 0.28125 * 4.0 g/mol
Mass = 1.125 grams
The mass of helium in the balloon is 1.125 grams