3 years ago

A student designed an experiment to test

Chemistry

1 answer:

love history [14]3 years ago

5 0

Answer:

Explanation:

Because it is the responding variable because you are looking for the weight or the amoount of salt in the water.

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What is the 250 green numbers on the side

natali 33 [55]

Answer:

1, 2, 3, ..., 250

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Whatever you mean.

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What do you think is the primary reason why the Unionid mussel population declined whenever there is a dramatic increase in the

sertanlavr [38]

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2 years ago

A student weighed out a 2.055 g sample of a cobalt chloride hydrate, ConClmpH2O, where n, m, and p are integer values to be dete

topjm [15]

The given mass of cobalt chloride hydrate = 2.055 g

A sample of cobalt chloride hydrate was heated to drive off waters of hydration and the anhydrate was weighed.

The mass of anhydrous cobalt chloride = 1.121 g anhydrate.

The mass of water lost during heating = 2.055 g - 1.121 g = 0.934 g

Converting mass of water of hydration present in the hydrate to moles using molar mass:

Mass of water = 0.934 g

Molar mass of water = 18.0 g/mol

Moles of water = $0.934 g * \frac{1 molH_{2}O }{18 g H_{2}O } =0.0519 mol H_{2}O$

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2 years ago

The substances sodium (Na), oxygen (O2), and sodium oxide (Na20) participate in this chemical reaction

Margaret [11]

Answer:

Explanation:

This is a synthesis or a combination reaction , which involves the oxygen combining with sodium to make one compound.

hope it helps.

you're welcome.

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2 years ago

Help now please this is not to hard of a q

marishachu [46]

Answer: Thomson

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