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Nimfa-mama [501]
3 years ago
13

3) Summarize the ways the desert can help preserve a body.

Chemistry
1 answer:
Elena-2011 [213]3 years ago
8 0
3. Historically, bodies have been preserved naturally through freezing, cold or dry heat or, in the right climate, through burial in a particular type of soil.
4. They were not wrong but they are being improved by humans today.
5.true
6. False
7. True
8. True
11. The Egyptians invented and used many simple machines, such as the ramp and the lever, to aid construction processes. They used rope trusses to stiffen the beam of ships. Egyptian paper, made from papyrus, and pottery were mass-produced and exported throughout the Mediterranean basin.
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Please Help.....................................................................................................................
S_A_V [24]
Mixtures:
physically combined
components retain properties

compounds:
chemically combined
components change properties

both:
made of elements
variable proportions 
fixed properties
2 or more compounds

hope this helps 
comment me if you have any questions 


5 0
3 years ago
¿por que es importante mantener una alimentacion variada y equilibrada? <br>por fa plisss ​
Zepler [3.9K]
Una dieta saludable proporciona la energía y los nutrientes necesarios para sobrevivir y mantenerse saludable. Combinar una dieta saludable con un estilo de vida activo tiene enormes beneficios y ayuda a reducir el riesgo de enfermedades cardíacas, cáncer y obesidad.
7 0
3 years ago
Read 2 more answers
When paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?
DaniilM [7]

Answer:

The Answer Is Chemical Change :)

5 0
3 years ago
In which of the following is number of neutrons correctly represented?​
11111nata11111 [884]

Answer:

²³⁸₉₂U has 146 neutrons

Explanation:

To know which option is correct, we shall determine the number of neutrons in each case. This can be obtained as follow:

For ²⁴₁₂Mg:

Mass number (A) = 24

Proton number (P) = 12

Neutron number (N) =?

A = P + N

24 = 12 + N

Collect like terms

N = 24 – 12

N = 12

Thus, there are 12 neutrons in ²⁴₁₂Mg

For ⁷⁵₃₃As:

Mass number (A) = 75

Proton number (P) = 33

Neutron number (N) =?

A = P + N

75 = 33 + N

Collect like terms

N = 75 – 33

N = 42

Thus, there are 42 neutrons in ⁷⁵₃₃As

For ¹⁹₉F:

Mass number (A) = 19

Proton number (P) = 9

Neutron number (N) =?

A = P + N

19 = 9 + N

Collect like terms

N = 19 – 9

N = 10

Thus, there are 10 neutrons in ¹⁹₉F.

For ²³⁸₉₂U:

Mass number (A) = 238

Proton number (P) = 92

Neutron number (N) =?

A = P + N

238 = 92 + N

Collect like terms

N = 238 – 92

N = 146

Thus, there are 146 neutrons in ²³⁸₉₂U

Considering the options and the illustration made above, Only ²³⁸₉₂U has the correct number of neutrons written along side.

8 0
3 years ago
what evidence is there in the diagrams to support the classification of these substances as elements​
Novosadov [1.4K]

Awnser your loooking fo its got to be aluminium

Explanation:i took the dang subgect

5 0
3 years ago
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