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galben [10]
3 years ago
7

Please Please Help Me In This Homework!!!!!

Chemistry
1 answer:
alexgriva [62]3 years ago
5 0
For total number of electrons, add the numbers from the configuration up.
Ex. 2+8+3+2=16 so total # is 16
For the name of the element, look at the periodic table and see which element number matches ur total number of electrons.
Ex. #16 on the periodic table is Sulfur.
I'm not exactly sure what listed electron config means.

Btw I might be really wrong but anything is better than leaving it blank...
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All organic compounds have at least ____ carbon and two ____
denpristay [2]
All organic compounds have at least 1 carbon and 2 hydrogen atoms.
7 0
3 years ago
Which solutions is more basic: a solution with a pH of 9 or a solution<br> with a pH of 12?
Nuetrik [128]

Answer:

Explanation:

pH= 7 is neutral, pH<7 - acidic solutions,

pH>7 - basic solution.

The more value of pH, the more basic solution is.

So, the solution with pH = 12 is more basic.

5 0
1 year ago
How does ur body maintain constant tempature on a hot day?
Lina20 [59]

It knows that when water evaporates, it carries heat energy away with it. 
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8 0
3 years ago
Read 2 more answers
A container with a fixed volume, filled with hydrogen gas at -104°C and 71.8 K PA is heated until the pressure reaches 225.9 K P
Daniel [21]

Answer:

The correct answer is 532 K

Explanation:

The Gay-Lussac law describes the behavior of a gas at constant volume, by changing the pressure or temperature. When is heated, the change in pressure of the gas is directly proportional to it absolute temperature (in Kelvin or K).

We have the following initial conditions:

P1= 71.8 kPa

T1= -104ºC +273 = 169 K

If the pressure increases until reaching 225.9 kPa (P2), we can calculate the final temperature of the gas (T2) by using the Gay-Lussac derived expression:

P1 x T2 = P2 x T1

⇒T2= (P2 x T1)/P1 = (225.9 kPa x 169 K)/71.8 kPa= 531.7 K ≅ 532 K

4 0
3 years ago
Juan measures a piece of metal and determines it has a mass of 10 grams and a volume of 2 ml
const2013 [10]

Answer:

<h3>The answer is 5.0 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 10 g

volume = 2 mL

We have

density =  \frac{10}{2}  \\

We have the final answer as

<h3>5.0 g/mL</h3>

Hope this helps you

3 0
3 years ago
Read 2 more answers
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