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Evgen [1.6K]
4 years ago
10

What does the periodic table have in common with a calendar?

Chemistry
1 answer:
Angelina_Jolie [31]4 years ago
5 0

Answer:

Calendar and periodic table both have repetitive patterns.

Explanation:

In calendar the days are arranged and divided into weeks whereas in the periodic table the elements are arranged in increasing atomic number and divided into groups

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a 55g block of metal has a specific heat of 0.45 J/g°C. What will be the temperature change of this metal if 450 J of heat energ
Dafna11 [192]

Answer:

18.18C

Explanation: Write whats below to show your work :D

m=55

C=0.45

Q=450zj

ch.temp=?

Q=mct

450 = (55)(.45)T

450 = 24.75

/24.75 = /24.75 (cancels out)

18.18 is the answer

Hope this helps! did it with my teacher.

7 0
3 years ago
It is possible to make a model of a fission chain reaction with mousetraps and table tennis balls, with the balls placed on an a
konstantin123 [22]

Answer:

The table tennis balls represent neutrons that are released when the nucleus splits and cause other nuclei to split

Explanation:

Nuclear fission is defined as the separation of a nucleus into two smaller nuclei.

It takes a neutron to set off a nuclear fission reaction. When that occurs, neutrons are released and those neutrons in turn are what set off other nuclear fissions. This is defined as a Nuclear Fission Chain Reaction. In the model, the one tennis ball that will be thrown will  be modeled as the starting neutron that sets of the initial (first) fission. The mouse traps with tennis balls represent the other nucleuses waiting to be struck by the one tennis ball. Once the initial tennis ball strikes the first mouse trap, that mouse trap will release its tennis ball hitting others and continuing the cycle.

It can also be modeled as such:

6 0
3 years ago
The environment can be changed in many ways, both by humans and nature. Some of these changes are good, while some are not. Sort
Ksju [112]

Answer:

Answers below (just some ethics)

Explanation:

Bad= Earthquake activity causing damage in a major city.

Bad= Producing and emitting smog from a smokestack.

Good= Planting native bushes to help control erosion.

Good= Volcanic eruption resulting in the formation of an island.

7 0
3 years ago
Potato plants with a Jellyfish gene will glow when they need to be watered.
maksim [4K]

This statement is true, potato plants with jellyfish genes do in fact glow when they need to be watered!

May i have brainliest? I need 1 more!

5 0
3 years ago
Read 2 more answers
4. Describe a solution and tell if the parts are mixed chemically or physically help please will give brainliest
Stels [109]
Hello There!

The solution: salt water
Mix: Physical as you could still separate them

A chemical mix can't be reversed.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
5 0
4 years ago
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