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Mandarinka [93]
3 years ago
10

Explain meaning and defination if child pychology​

Chemistry
1 answer:
Dominik [7]3 years ago
8 0
Child psychology is the study of subconscious and conscious childhood development. Child psychologists observe how a child interacts with their parents, themselves, and the world, to understand their mental development.
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During the light-independent reaction, carbon dioxide is fixed by adding it to a A. 2-carbon compound B. 3-carbon compound C. 4-
Scrat [10]
During the light independent reaction, carbon dioxide is fixed by adding it to a <span>5-carbon compound</span>
8 0
4 years ago
Read 2 more answers
Magnesium has a density of 1.071g/cm^3. Aluminum has a density of 2.700 g/cm^3. An unknown metal has a mass of 15g and a volume
maw [93]
To find the density you need to divide mass by volume. When you divide 15g by 14cm^3, you get a density of 1.071g/cm^3. This matches the density of magnesium, so the unknown metal is magnesium.
7 0
4 years ago
) Any gas exerts a pressure against its surroundings. For example, if you put more gas in a balloon, it exerts more pressure and
kolezko [41]

Explanation:

As we know that molecules of a gas move far away from each other because they are held by weak Vander waal forces. So, when a balloon is filled by a gas then molecules of a gas strike at its walls leading to more number of collisions.

This will also lead to more expansion of the balloon. As we know that pressure is the force exerted n per unit area of a substance or object.

Thus, more is the kinetic energy of the molecules of the gas more will be the force exerted by them. Hence, more will be the pressure exerted.  

8 0
4 years ago
What kind of melocule is water?A:nonpolarB:ionicC:polarD:charged
hram777 [196]
The correct answer is:  [C]:  "polar" .
_____________________________________________________  
   " Water " ; which is:  " H₂O " ; 
_____________________________________________________
is a:
_____________________________________________________

  — polar;  → {eliminate:  "Choice  [A]:  "non-polar"} ;

                  → {and consider:  "Choice: [C]:  "polar" } ; 

  — covalent; → {not "ionic";  eliminate:  "Choice:  [B]:  "ionic"} ;

  — uncharged;  → {neutral compound; not "charged" —but "balanced"} ; 
 
                           →  {Note:   " H ⁺ ,  O ²⁻  ;   →   " H₂O " } ;

                           →  The "charges" balance/ cancel out. 

                           →  {eliminate:  "Choice:  [D]:  "charged" .}.
_______________________________________________________
    — 
compound.
_______________________________________________________       

The correct answer is:  [C]:
 "polar" .
_______________________________________________________
6 0
4 years ago
Find the vapor pressure of a water solution in which the
zheka24 [161]

Answer:

The vapor pressure in solution is 0,0051 atm

Explanation:

This is the formula for vapor pressure lowering, the colligative property.

P vapor = Pressure sv pure . Xsv

Where Xsv is data.

Xsv means Molar fraction (moles solvent/total n° moles)

Vapor pressure of water, pure is 17.5 mmHg

P vapor = 0,0313 atm . 0163

P vapor in solution = 0,0051 atm

Molar fraction does not have units

A solution will have less vapor pressure than that observed in the pure solvent.

5 0
3 years ago
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