Answer:
m = 671 grams
Explanation:
Given that,
No of moles, n = 4.9
Molar mass of Barium, M = 137 g
Mass divided by molar mass is equal to no of moles. It can be given by the formula as follows :
or
m = 671 grams
So, the total mass of the sample of Barium is 671 grams.
Magma in quiet eruptions has a low content in silica , while in explosive eruptions, it has a high Content in silica. A volcano that erupts quietly has magma that is low in silica. Low-silica magma has low viscosity and flows easily. A volcano that erupts explosively has magma that is high in silica. High-silica magma has high viscosity, making it thick and sticky, thus it flows slowly.
Friction because smooth ice provides very little resistance against objects, like ice skates being dragged across its surface.
Answer:
CO
Explanation:
Co, Cr, and Cu are elements. Elements cannot be broken down by a chemical change, but compounds can. and CO is a compound
<em>V ≈ 18.5 cm³</em>
<em>Hi there !</em>
<em>density formula</em>
<em>d = m/V => V = m/d</em>
<em>V = 50g/2.7g/cm³</em>
<em>V = 18.(518) cm³</em>
<em>V ≈ 18.5 cm³</em>
<em>Good luck !</em>
