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MAXImum [283]
3 years ago
8

Can someone fill this? i dont understand how to do the last two

Chemistry
1 answer:
skad [1K]3 years ago
4 0

Answer:

Na. O

no of protons:11. 8

no of electrons:11. 8

no of neutrons:12. 8

Explanation:

the top number of the left is the mass number and the bottom is the atomic number the no of neutrons are atomic number subtracted by mass number the number on the top right is the charge don't let it confuse you and the number of electrons is the same as the number of protons

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Please solve this question
adell [148]

Answer:

11.c) CO carbon two oxide which burns in limited supply of oxygen

5 0
3 years ago
Temperate deciduous trees lose their leaves in Fall. Explain why trees in temperate rainforest and tropical rainforest don’t los
andrey2020 [161]

Answer:

So trees in temperate don't lose their leaves because the weather events aren't harsh enough.

Trees in tropical rainforest don't lose their leaves because they are a different type of tree known as evergreens that are green all year round.

Explanation:

Ok so first we'll define some things

Deciduous Trees=  Trees that lose all of their leaves for part of the year.

Trees shed their leaves trees to try and survive harsh weather events.

Temperate deciduous trees lose their leaves in fall to better survive the winter conditions of extreme cold and reduced daylight.

Temperate rainforests = An area that doesn't experience extremely cold or extremely hot temperatures or what we would call harsh weather events.

Broad-leaved trees in tropical rainforests are known evergreen, they are known as this as they are green all year round.

6 0
3 years ago
How does the solubility of a gas change with increasing temperature
Kryger [21]

The definition of solubility is the maximum quantity of solute that can dissolve in a certain quantity of solvent or quantity of solution at a specified temperature or pressure (in the case of gaseous solutes). For Gases, solubility decreases as temperature increases (duh...you have seen water boil, right?) The physical reason for this is that when most gases dissolve in solution, the process is exothermic. This means that heat is released as the gas dissolves. This is very similar to the reason that vapor pressure increases with temperature. Increased temperature causes an increase in kinetic energy. The higher kinetic energy causes more motion in the gas molecules which break intermolecular bonds and escape from solution. Do you need any more?


6 0
3 years ago
Despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided, you should be
navik [9.2K]

Answer:

G<0, spontanteous

H<0, from equation

S>0, gas to solid

Explanation:

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. Despite its name, silica gel is a solid. It is a chemically inert, highly porous, amorphous form of SiO2. Water vapor readily adsorbs onto the surface of silica gel, so it acts as a desiccant. Despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided, you should be able to make an educated guess about the thermodynamic characteristics of the process. Predict the signs of ΔG, ΔH, and ΔS.

G<0, spontanteous

H<0, from equation

S>0, gas to solid

8 0
3 years ago
List each type of organic macromolecule, it's function and a food source for that molecule.
Sati [7]

Answer:

Explanation:

  • carbohydrates.
  • lipids.
  • proteins.
  • nucleic acids

<em>thsese are the for macromolecules,given above</em>

6 0
3 years ago
Read 2 more answers
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