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sammy [17]
3 years ago
14

Which of these are characteristics of all arthropods? (Select all that apply.)

Chemistry
1 answer:
Brut [27]3 years ago
8 0
Not 6 legs, the have everything else
You might be interested in
A) ¿Cuáles son las partículas elementales que componen la materia, b) cuál es su ubicación, c) su carga eléctrica?
loris [4]

Las 3 partículas elementales son a) electrón, protón y neutrón. Se encuentran b) electrón en las órbitas electrónicas, el protón y el neutrón están en el núcleo. Sus cargas son c) electrón-negativo; protón-positivo; neutrón-sin carga. (Opción A).

Según el modelo atómico moderno, las partículas elementales que componen la materia son:

  • Electrón, se ubica en las órbitas electrónicas y tiene carga negativa.
  • Protón, se ubica en el núcleo y tiene carga positiva.
  • Neutrón, se ubica en el núcleo y no tiene carga

Las 3 partículas fundamentales son a) electrón, protón y neutrón. Se encuentran b) electrón en las órbitas electrónicas, el protón y el neutrón están en el núcleo. Sus cargas son c) electrón-negativo; protón-positivo; neutrón-sin carga. (Opción A).

Aprende mas: brainly.com/question/22693941

5 0
2 years ago
How many joules of heat are required to heat 25.0 g of isopropyl alcohol from the prevailing room temperature, 21.2 oC, to its b
valentinak56 [21]

Answer:

3984.12 J joules of heat are required to heat 25.0 g of isopropyl alcohol to its boiling point.

Explanation:

Q=m\times c\Delta T=m\times c\times (T_2-T_1)

Where:

Q = heat absorbed or heat lost

c = specific heat of substance

m = Mass of the substance  

ΔT = change in temperature of the substance

T_1 = Initial temperature of the substance

T_2 = Final temperature of the substance

We have mass of isopropyl alcohol = m = 25.0 g

Specific heat of isopropyl alcohol  = c = 2.604 J/g°C

Initial temperature of the isopropyl alcohol = T_1=21.2^oC

Final temperature of the isopropyl alcohol = T_2=82.4 ^oC

Heat absorbed by the isopropyl alcohol to boil:

Q=25.0 g\times 2.604 J/g^oC\times (82.4^oC-21.2^oC)=3984.12 J

3984.12 J joules of heat are required to heat 25.0 g of isopropyl alcohol to its boiling point.

7 0
2 years ago
An enzyme reduces the energy necessary to start a chemical reaction. This means the rate of reaction will
guajiro [1.7K]

Answer:

Answers below

Explanation:

Just so you know you are very $T00PlD

8 0
2 years ago
How many moles of calcium are there in 5.74 x 1022 atoms of calcium?
igor_vitrenko [27]

Answer:

0.095 moles of Calcium is there in 5.74 x 1022 atoms of calcium.

Explanation:

  • As we know, 6.023*10^23 atoms of an element is equal to its atomic weight.

       And, 6.023*10^23 atoms of an element is also equal to 1 mole of the             element.

We have,

  • 6.023*10^23 atoms of element calcium equals to 1 mole of Calcium
  • 5.74*10^22 atoms of element calcium equals to

         (1/(6.023*10^.23)) * 5.74*10^22 moles of calcium

Therefore,

  • 5.74 x 1022 atoms of calcium= 0.095 moles of calcium.

6 0
3 years ago
John Dalton and Antoine Lavoisier were alchemists who tried to convert diamonds to gold.
larisa86 [58]
This is false. They were both chemists and they made many discoveries such as realizing that charcoal and diamond are different forms of the same element and proposing an atomic theory, but they never tried to turn diamonds to gold.
8 0
3 years ago
Read 2 more answers
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