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hammer [34]
3 years ago
5

The periodic table includes all of the known elements in the world. how are elements arranged on the periodic table?

Chemistry
2 answers:
motikmotik3 years ago
5 0

Answer: The periodic elements are arranged by their atomic number.

svetlana [45]3 years ago
3 0
The elements in a periodic table are arranged in the increasing order of their atomic number. 
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Please help me thank you so much <3
Goshia [24]

Answer:

answer: they seek to produce verficiable data.

7 0
2 years ago
Read 2 more answers
Consider the first-order reaction shown here. the yellow spheres in the pictures to the right represent the reactant,
Luda [366]
The rate constant of the reaction K we can get it from this formula:

K=㏑2/ t1/2 and when we have this given (missing in question):
that we have one jar is labeled t = 0 S and has 16 yellow spheres inside and the jar beside it labeled t= 10 and has 8 yellow spheres and 8 blue spheres and the yellow spheres represent the reactants A and the blue represent the products B

So when after 10 s  and we were having 16 yellow spheres as reactants and becomes 8 yellow and 8 blue spheres as products so it decays to the half amount so we can consider T1/2 = 10 s
a) by substitution in K formula:
∴ K = ㏑2 / 10 = 0.069 
The amount of A (the reactants) after N half lives = Ao / 2^n
b) so no.of yellow spheres after 20 s (2 half-lives) =  16/2^2 = 4
and the blue spheres = Ao - no.of yellow spheres left = 16 - 4 = 12
c) The no.of yellow spheres after 30 s (3 half-lives) = 16/2^3 = 2
and the blue spheres = 16 - 2 = 14

8 0
3 years ago
What is the volume of 35.0 g of propylene glycol if the density of propylene glycol is 1.036 g/ cm3?
Len [333]
Mass = 35.0 g

density = 1.036 g/cm³

volume = ?

therefore:

D = m / V

1.036 = 35.0 / V

V = 35.0 / 1.036

V = 33.784 cm³

answer D
3 0
3 years ago
Science help me pleasee :)
kkurt [141]

Explanation:

i think right one is c.

it is because proton is different in each element.

6 0
2 years ago
What does the kinetic theory state about the kinetic energy of gas molecules?
Verizon [17]
The kinetic theory states that potential energy in a gas is low but has high potential energy and they move around fast, Say in a solid it has more potential energy but less kinetic.
6 0
3 years ago
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