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-BARSIC- [3]
2 years ago
6

Groundwater is an important resource for all life on earth. as you have read, water levels in the ogallala aquifer are decreasin

g. one proposed
strategy mentioned in the article is to dig deeper wells. do you agree or disagree with this strategy? use evidence and scientific reasoning to
support your position
Chemistry
1 answer:
Marina86 [1]2 years ago
6 0

Digging of wells being able to increase aquifer is something I agree with.

<h3>What is an Aquifer?</h3>

This is a water permeable rock layer which is found in the underground layer of the earth.

Wells will ensure water seeps into these layers thereby bringing about an increase in the aquifer.

Read more about Aquifer here brainly.com/question/15921008

#SPJ1

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What mass of steam at 100 C must be mixed with 150 gram of ice at its melting point, in a thermally insulated container, to prod
9966 [12]
The ice will require two forms of heat: latent to melt and sensible to be heated to 50 °C.
Q(ice) = ml + mCpΔT
= 150 x 333 + 150 x 4.18 x 50
= 85950 Joules
The mass of steam must release this much energy in two forms: latent to fuse into water and then sensible to cool to 50 °C.
85950 = m(2256) + 4.18 x 50 x m
m = 34.9 grams of steam.
6 0
3 years ago
Read 2 more answers
A 33.153 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put into a combustion analysis ap
elena-14-01-66 [18.8K]

Answer:

The empirical formula of the compound = C_4H_8S_1O_1

Explanation:

Mass of carbon dioxide gas = 59.060 mg = 0.059060 g

1 mg = 0.001 g

Moles of carbon dioxide = \frac{0.059060 g}{44 g/mol}=0.0013 mol

Moles of carbon in 0.0013 moles of carbon dioxide gas = 1 × 0.0013 mol = 0.0013 mol

Mass of 0.0013 moles of carbon = 12 g/mol\times 0.0013 mol=0.0156 g

Mass of water = 24.176 mg = 0.024176

Moles of water = \frac{0.024176 g}{18 g/mol}=0.0013 mol

Moles of hydrogen in 0.0013 moles of water = 2 × 0.0013 mol = 0.0026 mol

Mass of 0.0013 moles of hydrogen= 1 g/mol\times 0.0013 mol=0.0013 g

Mass of sulfur dioxide = 20.326 mg = 0.020326 g

Moles of sulfur dioxide = \frac{0.020326 g}{64 g/mol}=0.00032 mol

Moles of sulfur in 0.00032 moles of sulfur dioxide = 1 × 0.00032 mol = 0.00032 mol

Mass of 0.00032 moles of sulfur = 32 g/mol\times 0.00032 mol=0.01024 g

Mass of oxygen in the sample = x

Mass of sample = 33.153 mg = 0.033153 g

0.033153 g = 0.0156  g + 0.0013 g + 0.01024 g + x

x = 0.006013 g

Moles of oxygen = \frac{0.006013 g}{16 g/mol}=0.00038 mol

For empirical formula divide the lowest number of moles of elemnt from all the moles of the all the elements:

Carbon : \frac{0.0013 mol}{0.00032 mol}=4

Hydrogen: \frac{0.0026 mol}{0.00032 mol}=8

Sulfur : \frac{0.00032 mol}{0.00032 mol}=1

Oxygen : \frac{0.00038 mol}{0.00032 mol}=1

The empirical formula of the compound = C_4H_8S_1O_1

8 0
4 years ago
Fire extinguishers that spray carbon dioxide on the fire, work very effectively because it forms a blanket around the burning ma
Arte-miy333 [17]

Answer:

I think it will option B it will retain enough heat

8 0
3 years ago
True or False. It is reasonable to assume that an atom with a positive oxidation number could make a chemical bond with an atom
patriot [66]

A loss of negatively-charged electrons corresponds to an increase in oxidation number, while a gain of electrons corresponds to a decrease in oxidation number. Therefore, the element or ion that is oxidized undergoes an increase in oxidation number.

Hope this helped

3 0
3 years ago
Which two element will most likely form an ionic bond
Alecsey [184]
I did this question before and the answer is Magnesium and silicon, B.
7 0
3 years ago
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