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olganol [36]
3 years ago
11

The mineral, selenite, will effervesce (bubble) when treated with acid. True False

Chemistry
1 answer:
AlladinOne [14]3 years ago
8 0

Answer:

False. Selenite (CaSO4.2H2O) when reacted with an acid will dissolve in it and there will be no effervescence.

Explanation:

we know that selenite is a crystalized form of gypsym and is transparent in nature and is formed when sulfate and calcium rich water evaporates and resulting hardness is 2 on Mohs scale.

know more on:

brainly.com/question/1034570

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how many grams of fertilizer , for potassium sulfate are there in 42.3 mole of potassium sulfate? step by step
Over [174]

Answer:

The mass of 42.3 moles of potassium sulfate is 7,371.1557 grams

Explanation:

Potassium sulfate K₂SO₄ which is also known as sulphate of potash is a water soluble common component of fertilizer

The molar mass of potassium sulfate, M = 174.259 g/mol

The given number of moles of potassium sulfate, n = 42.3 moles

The mass, 'm', of a given number of moles of potassium sulfate, 'n', is given as follows;

m = n × M

Therefore, we have;

The mass, 'm', of 42.3 moles of potassium sulfate is found by plugging in the values for 'M', and 'n', in the above equation as follows;

m = 42.3 moles × 174.259 g/mol = 7,371.1557 grams

The mass of 42.3 moles of potassium sulfate, m = 7,371.1557 grams.

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What is kinetic energy
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It's the form of energy in a moving object or a particle. It is present in any object that has a mass and a speed.

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Describe a time in the group discussion when someone cited evidence from their research to make a point.
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