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What is the name for the compound Pb0?
Lead (II) oxide
Which is A student weighing 45kg runs down a slope and suddenly jumps with a speed of 3 m s onto a stationary skateboard The student and the skateboard move with a velocity of 2.7 m s What is the mass?
This can be modeled as a "collision" where momentum is conserved. Momentum equals mass times velocity (p = mv).Let's call the momentum of the student before the collision ps0 and the momentum of the skateboard before the collision pb0. Let's call the momentums after the collision ps1 and bs1.Since momentum is conserved, ps0 + pb0 = ps1 + bs1. Plugging the numbers for the momentum gives us:(45)(3) + (m)(0) = (45)(2.7) + (2.7)(m), where m is the mass of the skateboard.Simplified:135 = 2.7m + 121.513.5 = 2.7mm = 5So the mass of the skateboard is 5 kg.(Note that the units are all in kilograms, meters, and seconds they call match up in the calculations.)
Are there more elements or non-elements?
Non-elements. There are only around 118 known elements, there are millions of compounds made of those elements.
What elements have more predictable properties main group elements or transition elements?
main group elements
Mendeleev's pattern repeated after how many elements?
The properties were repeated after 8 elements.
What is the name for the compound Pb0?
Lead (II) oxide
Why is carbon monoxide discribed as reducing agent?
Because it reduces things. Pb0 + CO -> Pb + CO2
Which is A student weighing 45kg runs down a slope and suddenly jumps with a speed of 3 m s onto a stationary skateboard The student and the skateboard move with a velocity of 2.7 m s What is the mass?
This can be modeled as a "collision" where momentum is conserved. Momentum equals mass times velocity (p = mv).Let's call the momentum of the student before the collision ps0 and the momentum of the skateboard before the collision pb0. Let's call the momentums after the collision ps1 and bs1.Since momentum is conserved, ps0 + pb0 = ps1 + bs1. Plugging the numbers for the momentum gives us:(45)(3) + (m)(0) = (45)(2.7) + (2.7)(m), where m is the mass of the skateboard.Simplified:135 = 2.7m + 121.513.5 = 2.7mm = 5So the mass of the skateboard is 5 kg.(Note that the units are all in kilograms, meters, and seconds they call match up in the calculations.)
Do elements easily change into new elements?
No. It is quite difficult for elements to change into new elements.
Are there more elements or non-elements?
Non-elements. There are only around 118 known elements, there are millions of compounds made of those elements.
What are some Elements with hydrogen and oxygen?
Hydrogen and oxygen are already elements. Elements do not contain other elements.
What are the names of all the man made elements on the periodic table?
Transuranium Elements
What is the average sum of the elements divided by number of elements?
the sum of the elements divided by the number of elements is the average
What elements have more predictable properties main group elements or transition elements?
main group elements
Mendeleev's pattern repeated after how many elements?
The properties were repeated after 8 elements.
What is special about all the elements beyond uranium on the periodic table?
These elements are called transuranic elements.
How many elements does the table of elements have?
There are 118 elements on the periodic table.
