Answer : The mass of 7.0 m chain is, 15.12 kg
Explanation :
As we are given that,
The weight of the chain per unit length = 2.16 kg/m
Now we have to determine the mass of chain for 7.0 m length.
As, the mass of 1 m length of chain = 2.16 kg
So, the mass of 7.0 m length of chain =
= 15.12 kg
Therefore, the mass of 7.0 m chain is, 15.12 kg
Answer:
Deep inside Earth, between the molten iron core and the thin crust at the surface, there is a solid body of rock called the mantle. When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt.
Explanation: hot molten rock, ash, and gases escape from the volcano
Answer:
a risk to human health or the environment arising from biological work, especially with microorganisms.
Explanation:
Answer:
1. Each of the above compounds have two different elements.
2. The elements are non-metals.
3. The name carbon monoxide cannot be used for the first two compounds because CO contains one atom of oxygen, hence it is named carbon monoxide. CO2 contains two atoms of oxygen. Hence, it is named as carbon dioxide.
4. We can see that each atom is named according to the number of atoms of the element present in the compound. For example, Phosphorus trioxide is named so because it contains a single atom of phosphorus and three atoms of oxygen.