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daser333 [38]
3 years ago
10

Which is

Chemistry
1 answer:
Elodia [21]3 years ago
7 0

Answer:

(b) blood

Explanation:

The substances in blood cannot be separated physically it would have to be done chemically.There for i could not be a mixture.

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In eukaryotic cells, mRNA is produced in the....
zubka84 [21]
It's the nucleus
Explanation:
mRNAs are synthesized in the nucleus, and proteins are later made in the cytoplasm.
8 0
3 years ago
The theoretical yield of NH3 is 945 grams. You conducted the experiment and only produced 598 grams.
zlopas [31]

Answer:

Given theoretical yield of NH3 is 945g.

The actual yield is 598g.

What is the %yield?

Explanation:

%yield of a chemical reaction can be calculated by using the formula:

%yield=\frac{actual yield}{theoretical yield}  * 100\frac{actual yield}{theoretical yield} * 100

Substitute the given values in this formula to get the %yield.

\frac{598g}{945g} * 100\\=63.3

Hence, the %yield for the formation of ammonia is ---- 63.3.

6 0
3 years ago
How many moles of pcl5 can be produced from 23.0 g of p4 (and excess cl2)? express your answer to three significant figures and
NeX [460]
Balance Chemical equation is,

                                         P₄  +  10 Cl₂   →   4 PCl₅

According to Balance Equation,

            123.89 g (1 mole) of P₄ reacts to produce   =   4 Moles of PCl₅
Then,
    23 g of P₄ will react with excess Cl₂ to produce   =   X moles of PCl₅

Solving for X,
                                      X  =  (4 mol × 23 g) ÷ 123.89 g

                                      X  =  0.742 g of PCl₅
Result:
           
When 23 g of P₄ is reacted with excess Cl₂, 0.742 g of PCl₅ is produced.
4 0
4 years ago
Substances formed as the result of a reaction are called
kozerog [31]
The new substances that result from a chemical reaction is called product
6 0
3 years ago
Help me please.<br>List two properties of a material that you can observe using your senses
sasho [114]
Well I would guess the 5 common senses if thats what it is called like seeing hearing and stuff like that
5 0
4 years ago
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