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nika2105 [10]
3 years ago
15

What do oxygen, silicon, and selenium have in common? How might this relate to their organization on the periodic table?

Chemistry
1 answer:
Sonbull [250]3 years ago
8 0

Answer:

They all belong to the p block in the periodic table

Explanation:

Let us examine the electronic configuration of each element;

Oxygen - [He] 2s2 2p4

Silicon - [Ne] 3s2 3p2

Selenium - [Ar] 4s2 3d10 4p4

A common thread that joins all the elements listed above is that they all belong to the p-block in the periodic table. They could be collectively referred to as p-block elements.

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What is the likely impact of water's high specific heat on life on Earth? (3 points)
statuscvo [17]

Answer:

Marine life is least affected by the temperature fluctuations of the atmosphere.

Explanation:

The high specific heat capacity of water means that it takes much more energy to raise the temperatures of water by one (1) degree than land. This means that on a hot sunny day, land temperatures would increase dramatically while ocean temperatures would only rise slightly. Conversely,  at night, the land cools rapidly while oceans cool slowly hence the temperatures drop slightly.

7 0
3 years ago
An ethylene glycol solution contains 16.2 g of ethylene glycol (c2h6o2) in 85.4 ml of water. calculate the boiling point of the
Andre45 [30]
<span>Answer: (16.2 g C2H6O2) / (62.0678 g C2H6O2/mol) / (0.0982 kg) = 3.9704 mol/kg = 3.9704 m a.) (3.9704 m) x (1.86 °C/m) = 7.38 °C change 0.00°C - 7.38 °C = - 7.38 °C b.) (3.9704 m) x (0.512 °C/m) = 2.03 °C change 100.00°C + 2.03 °C = 102.03 °C</span>
7 0
4 years ago
When blood passes through the lungs, carbon dioxide and water are formed from carbonic acid dissolved in the blood. The carbon d
NeTakaya
Answer is: <span>decomposition.

Balanced chemical reaction: H</span>₂CO₃ → CO₂ + H₂O.
H₂CO₃ is carbonic acid.
CO₂ is carbon (IV) oxide or carbon dioxide.<span>
Chemical decomposition is the separation of a single chemical compound (in this example </span>carbonic acid<span>) into its two or more simpler compounds (in this example water and carbon dioxide).</span>
7 0
4 years ago
Read 2 more answers
Chloroform is a liquid once used for anesthetic. What is the volume of 5.0 g of chloroform? The density of chloroform 1.49 g/mL
mario62 [17]

Answer:

3.3557047 mL

Explanation:

The density can be found using the following formula:

d=\frac{m}{v}

Let's rearrange the formula to find the volume, v.

d*v=\frac{m}{v}*v

d*v=m

\frac{d*v}{d} =\frac{m}{d}

v=\frac{m}{d}

The volume can be found by dividing the mass by the density. The mass of the chloroform is 5 grams and the density is 1.49 grams per milliliter. Therefore,

m= 5g \\d= 1.49 g/mL

Substitute the values into the formula.

v=\frac{5g}{1.49 g/mL}

Divide. When we divide, the grams, or g, in the numerator and denominator will cancel out.

v= \frac{5}{1.49}mL

v=3.3557047 mL

The volume of 5 grams of chloroform is 3.3557047 milliliters

4 0
3 years ago
What must occur in order for a chemical reaction to be specifically classified as endothermic instead of exothermic?
Alla [95]

Answer:  B- Chemical bonds are formed. Energy is released in the form of heat.

Explanation: I hoped that helped !

6 0
3 years ago
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