Oxygen is gas at room temperature. remember the air you breath have 21%oxygen and it is gas
Answer:
A. Move to safe location
Explanation:
Plants and animals form the living community of the environment. Both of them share some of the common characteristics. Both are made of cells and they use energy for their growth and development. One of the differences between the two lies in the ability to move from one place to another. Animals have legs with which they can easily move from one place to another in search of food, shelter, and safety. While plants are unable to move as they are fixed in one place.
Answer:
The mass of nickel is 48μg
Explanation:
Parts per billion is a way to describe small concentrations and is defined as the ratio between μg of solute and kg of solvent.
If a solution of nickel in propanol is 20ppb, contains 20μg of nickel in 1 kg of propanol.
Thus, a sample of 2.4kg of propanol will contain:
2.4kg × (20μg nickel / 1kg) = 48μg nickel
<h3>The mass of nickel is 48μg</h3>
Answer: The density if the bone is .
Explanation:
Mass of the bone = 3.8 grams
Volume of the bone =
Density is defined as mass present in per unit volume of the substance.
The density if the bone is .
B. <span>The heat lost by the metal will equal the heat gained by the water</span>