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VikaD [51]
3 years ago
15

Workers digging a tunnel through a city find some

Chemistry
1 answer:
IRISSAK [1]3 years ago
4 0

Answer:

a. Determine the materials used to make the pots.

Explanation:

Workers digging a tunnel through a city who find some ancient pots decorated with geometric designs will employ the services of a chemist.

The chemist would help to determine the materials which were used to make the pots . This is usually done by various type of experiments and observations. After the constituent of the pot is gotten then more information would be derived from the possible source and use of the pot

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The idea that the earth is divided into a number of small plates that float on the mantle and slide,collide,and slip past each o
IgorLugansk [536]

Answer:

Theories

Explanation:

It is theories because it was a generalistee abstract or thinking generalising the principle of fact about Earth tectonic plates ,it was formulated and concluded as plate tectonic theories after many findings. The theories conclude that the Earth has an outer layer called lithosphere and lies overly a plastic layer called asthenosphere. The lithosphere is divided into several plates and they move close to each other where they diverge, converge or slip over one another.

7 0
3 years ago
1. If the pressure of a fixed volume of gas decreased in a sealed container, what variable would you think changed? did this var
grandymaker [24]

Answer:

Temp decreased

Explanation:

If the container is sealed and the pressure DEcreases, then the temperature DEcreased

PV = n RT     n  R   V   are constant   if  P goes down then so does T    

8 0
2 years ago
Electrical energy can be transformed into other types of energy. We often experience this transformation of energy in our everyd
harkovskaia [24]
The answer is D. The rice cooker / pot.

hope this helps !
6 0
4 years ago
Read 2 more answers
I need halp on this plz
Harrizon [31]

1. light bones

2. hibernate

4 0
3 years ago
We know that for a given reaction when the temperature increases from 100 k to 200 k the rate constant doubles. What is the acti
Alenkasestr [34]

Answer:

The activation energy of the reaction is 1.152 kJ/mol.

Explanation:

Activation energy is the minimum amount which is absorbed by the reactant molecules to undergo chemical reaction.

Initial temperature of reaction = T_1=100 K

Final temperature of reaction = T_2=200 K

Initial rate of the reaction at 100 k = K_1=k

Final rate of the reaction at 200 k = K_2=2k

Activation energy is calculated from the formula:

\log\frac{K_2}{K_1}=\frac{E_a}{2.303\times R}(\frac{T_2-T_1}{T_1T_2})

R = Universal gas constant = 8.314 J/ K mol

\log\frac{2k}{k}=\frac{E_a}{2.303\times 8.314 J/K mol}(\frac{200 K-100K}{200 K\times 100K})

E_a=1,152.772 J/mol=1.152 kJ/mol

5 0
4 years ago
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