3 years ago

Which of the following single replacement reactions will take place?

Chemistry

1 answer:

Bess [88]3 years ago

7 0

Answer:

O Al + Mg(NO3)2 -->

Explanation:

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A bowling ball rests on the floor. The bowling ball is given a push.

lyudmila [28]

Answer:

A. It will move.

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3 years ago

If there is a graduated cylinder containing 20mL of water and a small rock is gently placed inside it, and the water level insid

LekaFEV [45]

Answer:

Explanation:

just subtract 20-25 and 5 is left over which is how much the water when up with the rock.

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What is true at stp? A)the temperature is 273.15 kelvin, B)one mole of gas occupies one liter of volume. C)pressure is at 101 vo

fgiga [73]

STP stands for standard temperature and pressure. Standard pressure is equivalent to 1 atm, and standard temperature is equivalent to 273.15 K. Therefore, your answer is A. the temperature is 273.15 kelvin.

Hope this helps!

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3 years ago

If 25.5g of sodium thiosulphate was dissolved in 40g of distilled water at 25°C,

zhenek [66]

Answer:

Formula: Na2S2O3

we get solubility.

Divide the mass of the compound by the mass of the solvent and then multiply by 100 g to calculate the solubility in g/100g .

Solution given:

mass of sodium thiosulphate [m1]=25.5g

mass of water [m2]=40g

at temperature [t]=25°C

we have

solubility in g/dm^3 : $\frac{solute in gram}{solvent in gram} *100$

= $\frac{25.5}{40}*100$
=63.75g /litre=63.75g/dm³

solubility in g/dm^3 :63.75g/dm³

now

solubility of the solute in mol/dm^3=:63.75g/dm³/178=0.4 mol/dm³

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3 years ago

Sensitivity analysis is concerned with how certain changes affect

Ilia_Sergeevich [38]

The answer here is letter C. The optimal solution. The optimal solution is the one that affects how certain things changes with sensitivity analysis. The optimal solution is a feasibility solution where the objective function of it is to reach the minimum and maximum value.

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