3 years ago

The electron configuration for an atom is 1s22s22p2. How many electrons does the atom have?

2 answers:

8 0

If each atom of element D has 3 mass units and each atom of element E has 5 mass units, a molecule composed ..... The electron configuration for the carbon atom (c) is 1s2 2s2 2p2.

nexus9112 [7]3 years ago

4 0

the answer is (C.6), but I am not entirely sure

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Blue eyes are recessive. Jonathan is hybrid for blue eyes. His wife Carly, has blue eyes. If they have four children, how many w

astraxan [27]

Answer:

possibly two

Explanation:

you said Jonathan had hybrid eyes, did you mean that he was heterozygous? if so 2 out of 4 will have the recessive gene "blue".

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3 years ago

Which alkaline earth metal has the highest ionization energy? Refer to the periodic table.

Liula [17]

I’m pretty sure the answer is Barium. I hope it helps.

4 0

3 years ago

Read 2 more answers

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Igoryamba

Atomic mass is the answer!!
Explanation: An elements atomic number won’t be able to change

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3 years ago

If you collect 1.75 L of hydrogen gas during a lab experiment when the room temperature is 23oC and the barometric pressure is 1

ziro4ka [17]

Answer:

$n=0.0747mol$

Explanation:

Hello,

In this case, since we can consider hydrogen gas as an ideal gas, we check the volume-pressure-temperature-mole relationship by using the ideal gas equation:

$PV=nRT$

Whereas we are asked to compute the moles given the temperature in Kelvins, thr pressure in atm and volume in L as shown below:

$n=\frac{105kPa*\frac{0.009869atm}{1kPa}*1.75L}{0.082\frac{atm*L}{mol*K}*(23+273.15)K} \\\\n=0.0747mol$

Best regards.

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3 years ago

Help Pls thnk you !!!!!!!!!!!!!!!!!!!!!!!!!

uysha [10]

The answer is double displacement is the answer

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3 years ago