Boiling water. A phase change occurs when water boils.
The three common phases are <em>solid</em>, <em>liquid</em>, and <em>gas</em>. A <em>phase change</em> happens when one phase changes into different phase without a change in chemical composition.
When water boils, the liquid phase becomes a gas (water vapour or steam). The water does not change its chemical composition be each phase consists of water.
Thus, boiling water involves a phase change.
Mixing paint does <em>not</em> involve a phase change because it stays a liquid during all stages of the mixing.
A suspension consists of two phases, but the phases do not change into other phases.
Answer:
1. 75.82 m^3 (cubic meters)
2. 75820 L (Liters)
Explanation:
Given data
L = 21 FT
W = 17 ft
h = 7 ft 6 in
Calculation
Formula to calculate volume is:
V= L×W×h
put the values in formula
V = 21 ft × 17 ft × 7 ft 6 in
V = 2677.5 ft
Now we will convert Cubic ft to cubic meters, as we know that 1 cubic meter is equal to 35.3147 cubic feet
V (m^3) = 2677.5 ÷ 35.3147
V (m^3) = 75.82 m^3
Now we will calculate liters
as we know that 1 cubic meter is equal to 1000 liters
so multiply the ans. with 1000
L = 75.82 × 1000
L = 75820 l
Answer: The differences is Air masses cover over thousands and hundreds and millions of square kilo. A front is a boundary which two air masses but different temperature and moisture content meet.
Explanation:
Answer:
They are salts, ionic compounds
Explanation:
To know if they are covalent or ionic we need to check their difference in electronegativity. As an example mgcl2, mg has electronegativity of 1.2 and cl 3 so 3-1.2=1.8 which is bigger than 1.7 means it's ionic therefore they are salts
The moon, man has not been to mars yet
