2 years ago

What is another name for hard water?

Chemistry

1 answer:

astra-53 [7]2 years ago

7 0

Answer:

Hyponym is the another name for hard water.

Explanation:

Please Mark me brainliest

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allochka39001 [22]

Answer:

what concept?

Explanation:

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2 years ago

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4. A student started with a 0.032 g sample of copper which he took through the series of reactions described in this experiment.

Elodia [21]

Answer:

$Y=48.6\%$

Explanation:

Hello,

In this case, we can consider the following chemical reaction for the oxidation of copper which only occurs at high temperatures:

$2Cu+O_2\rightarrow 2CuO$

In such a way, for 0.032 grams of copper, the following grams of copper (II) oxide (black product) are yielded:

$m_{CuO}=0.032gCu*\frac{1molCu}{63.546gCu} *\frac{2molCuO}{2molCu}*\frac{79.546gCuO}{1molCuO} =0.078gCuO$

Therefore, the percent yield is:

$Y=\frac{0.038g}{0.078g}*100\%\\ \\Y=48.6\%$

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3 years ago

The simplest form of water is a(n)

omeli [17]

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3 years ago

Help please giving brainliest

Kitty [74]

Answer:

i think protons and neutrons

Explanation:

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3 years ago

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What is chemical formula and equation ?

Daniel [21]

The answer to your question is,

Chemical formula is "a mathematical relationship or rule expressed in symbols". For example, H2 + O = H2O. < Water.

The equation H2 + O = H2O is two elements combining together. H, hydrogen. O, Oxygen. They form together to make a new compound of elements. Water. :))

-Mabel <3

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