Answer:
Dependent variable: If calcium is given, then bone strength will increase.
Explanation:
It's the number of Protons of that atom..
Answer:
<u>The same as</u> can best fill the space
Explanation:
The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases, equals the original mass of the charcoal and the oxygen when it first reacted.
It shows that when wood burns, it combines with oxygen and changes not only to ashes, but also to carbon dioxide and water vapor. The gases float off into the air, leaving behind just the ashes. Suppose you had measured the mass of the wood before it burned and the mass of the ashes after it burned. Also suppose you had been able to measure the oxygen used by the fire and the gases produced by the fire. What would you find? The total mass of matter after the fire would be the same as the total mass of matter before the burning.
Answer:
no tengo la menor idea de que es
Answer:
4.25g
Explanation:
Molar concentration or molarity can be calculated thus;
Molarity (M) = number of moles (n) ÷ volume (V)
According to the provided information in this question, Volume = 5.0L, M = 0.050 M
number of moles = molarity × volume
n = 0.050 × 5
n = 0.25moles
Number of moles in a substance = mass (M) ÷ molar mass (MM)
Molar mass of ammonia (NH3) = 14 + 1(3)
= 17g/mol
Mass = moles × molar mass
Mass (g) = 0.25 × 17
Mass = 4.25g
