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pychu [463]
3 years ago
11

4.

Chemistry
2 answers:
Oksana_A [137]3 years ago
8 0

Answer:

the answer is B

Explanation: Trust me I took the test

hodyreva [135]3 years ago
7 0

Answer:good luck

Explanation:

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Just need 2 more, please help asap!!
Digiron [165]

Answer:

2. A resistor

3. Transistor

Sorry about before, go the answers now!

7 0
4 years ago
How many total valence electrons are found in the following molecules: CO3
photoshop1234 [79]

Answer:

The Carbonate (CO2−3) Ion

Unlike O3, though, the actual structure of CO32− is an average of three resonance structures. 2. Carbon has 4 valence electrons, each oxygen has 6 valence electrons, and there are 2 more for the −2 charge. This gives 4 + (3 × 6) + 2 = 24 valence electrons

Explanation:

7 0
3 years ago
Barium is in period 6 and magnesium is in period 3 of the periodic table. Which element would lose one electron more easily, and
velikii [3]
I believe the correct answer would be barium. It is the element between the two that would lose one electron more easily. This is because it has a higher first ionization energy which means the that the probability of it existing as an ion would be higher than magnesium.
4 0
4 years ago
Problem Page Question A major component of gasoline is octane C8H18. When liquid octane is burned in air it reacts with oxygen O
KATRIN_1 [288]

Answer:

0.3mol C8H18

Explanation:

For this we must first look at the reaction taking place:

C8H18+O2 --> H2O + CO2

Balancing the equation we get:

2(C8H18)+25(O2) --> 18(H2O) + 16(CO2)

Form there we now need to know how many moles of Octane are needed to produce 2.4moles of H2O. The conversion is as follows:

2.4molH2O ((2mol of C8H18)/(18mol of H2O)) = 0.3mol C8H18

3 0
3 years ago
What was Johann Dobereiner’s contribution to the development of the periodic table?
umka21 [38]
<span>he introduced his law of triads. each triad was a group of three elements</span>
3 0
3 years ago
Read 2 more answers
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