Why should you test several properties when identifying mineral's

2 answers:

5 0

Hello,

Your answer would be:

To find out the hardness of the mineral

To study the color of the mineral

Because we don’t want call a pebble or ruby a diamond because they weigh different and look different.

Plz mark me brainliest

Nataliya [291]3 years ago

4 0

You should test several properties because some minerals might be similar, but if you test all the properties, you will identify it correctly.

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Read 2 more answers

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. What is the weight/

lara31 [8.8K]

Answer:

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. The weight/weight % or percent by mass of the solute is :

2.67%

Explanation:

Note : Look at the density of potassium nitrate in water if given in the question.

You are calculating weight /Volume not weight/weight % or percent by mass of the solute

Here the weight/weight % or percent by mass of the solute is asked : So first convert the VOLUME OF SOLUTION into MASS

Density of potassium nitrate in water KNO3 = 2.11 g/mL

$density=\frac{mass}{volume}$