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mezya [45]
3 years ago
12

A student has a rectangular block. It is 3.00 cm wide, 400.0 mm tall, and 0.25 m long. It has a mass of 600.0 g. What is the den

sity (g/mL) of the rectangular block? (1cm^3 = 1 mL) ​
Chemistry
1 answer:
Aneli [31]3 years ago
4 0

Explanation:

deg dragster Zbigniew

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Fine rice and wheat are homogeneous or heterogeneous​
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If 32.3 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass?
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4 years ago
Read 2 more answers
Need help on this ASAP !!!!
JulijaS [17]

Answer:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O.

Explanation:

To balance the equation, you should apply the law of conservation of mass for the equations.

The law of conservation of mass states that the no. of each atom is equal in both sides (reactants and products).

Hydrocarbon is burned in oxygen to produce CO₂ and H₂O.

So, the given equation is balanced as:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O.

that 1.0 mole of C₃H₈ is burned in 5.0 moles of O₂ to produce 3.0 moles of CO₂ and 4.0 moles of H₂O.

The no. of all atoms is the same in both of reactants and products side.

C (3), O (10), and H (8).

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3 years ago
Calculate the relative formula mass of Zn(NO3)2. Round your answer to the nearest whole number?
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