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uranmaximum [27]
2 years ago
15

Plz help I’ll give brainliest!!!

Chemistry
1 answer:
Ilia_Sergeevich [38]2 years ago
4 0
Red blood cells. Need glucose oxygen to convert to carbon dioxide
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An infant ibuprofen suspension contains 100 mg/5.0mL suspension. The recommended dose is 10 mg/kg body weight.How many millilite
Molodets [167]
Converts the 25 lb to kg 

multiply the kilograms by the dose (10 mg/kg)

multiply the amount of ibuprofen by the conversion factor of the concentration of the suspension to calculate the mL

25 lb x  0.453592 kg/1lb=  "A kg"

A kg x 10 mg/kg = B mg

B mg x  5.0 mL/ 100 mg = "C mL of suspension"
6 0
3 years ago
A concentration cell consists of two sn/sn2+ half-cells. the electrolyte in compartment a is 0.24 m sn(no3)2. the electrolyte in
Vikentia [17]
A:-      sn(s) =>  Sn +2(0.24 M) + 2e-
B:-     Sn +2 (0.87 M) +2e-  =>   Sn(s) 

solution will become more concentrated and solution B become less concentrated 

Sn(s)+ Sn +2(0.87 ) ----> Sn(s) + Sn  +2(0.24)
E  =   Eo  -   0.0592 / 2 * log   [   (0.24 / 0.87 ) ]
E  = 0.0   -   0.0592 / 2   *   log ( 0.275) 
( n=2 two electrons are transferred)

E =  -0.0296 *  ( - 0.560) 
E =  0.0165 volts 




4 0
3 years ago
How can one determine if a bond between two atoms is ionic covalent or metallic?
Wewaii [24]

Answer:

By the Pauling rule, of EN

Explanation:

EN means electronegativity, the ability of atoms to attract electrons.

In the periodic table each atom, has a value of EN.

When there are two atoms bonded, you must substract the EN (the high - the low) → ΔEN

It depends on the ΔEN, that you can define a bond as ionic, covalent or metallic.

Ionic ΔEN → > 1.7

Covalent polar 0.4 < ΔEN > 1.7

Covalent non polar 0.4 < ΔEN

Two metals have always a metallic bond

5 0
3 years ago
What is the law of reciprocal proportion​
irina [24]

If two different elements combine separately with a fixed mass of a third element, the ratio of the masses in which they do so are either the same as or a simple multiple of the ratio of the masses in which they combine with each other.

7 0
3 years ago
How many joules of heat must be transferred to a 480-g aluminum pizza pan to raise its temperature from 22C to 234C? The specifi
NemiM [27]
The given formula for heat, Q=mc(Tf-Ti), is the best way to solve such problems with changes in temperature. It can be said that m is the mass of the substance. C is the specific heat of the substance. The term (Tf-Ti) is the change in temperature.

Q = mc(Tf-Ti) = 480g(0.96 J/g-C)(234-22) = 97689.6 Joules of heat
6 0
3 years ago
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