Answer:
From 00:11
Balance the Molecular Equation
From 01:35
Ions for the Complete Ionic Equation
From 03:04
Net Ionic EquationExplanation:
Answer:
The US surgeon general's 1964 report declared that smoking cigarettes was linked to cancer
The average global temperature of the Earth has increased by almost two degrees in the last century.
Explanation:
Answer:
A Hope this helped
Explanation:
The heat source for our planet is the sun. Energy from the sun is transferred through space and through the earth's atmosphere to the earth's surface. Since this energy warms the earth's surface and atmosphere, some of it is or becomes heat energy. There are three ways heat is transferred into and through the atmosphere:
radiation
conduction
convection
Radiation
B, a physical change because it is not destroying the substance.
Answer:
s<p<q<r
Explanation:
Given
Element s displaces p from its oxide. Thus, s is more reactive that p
p reacts with cold water but element q cannot react with cold water. Thus,
p is more reactive than q
Element q is able to react with weak or dilute acids but element r in unable to react with weak or dilute acids. Thus, q is more reactive that r
The order of four elements on the basis of their reactivity in descending order is as follows
s<p<q<r
