What are the steps of preparing a 2M solution of NaOH<br><br> (Its talking about molarity)

In what orbital would to valence electrons of strontium be found? a.) 5s b.) 4s c.) none d.) 5p

KonstantinChe [14]

Answer:

The correct answer is 5s

Explanation:

Strontium atomic number = 38

Electronic configuration is $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 5s^{2}$

As $5s$ orbital is valence orbital in strontium, the outer electrons exists in that orbital only.

4 0

3 years ago

Your teacher lights a small candle and allows it to burn. At first, the candle wax melts, but then it seems to burn away and dis

Margarita [4]

Burning of the candle is both physical and chemical change.burning of the candle causes the candle to melt the wax.so the wax has changed it was solid now it is liquid.the wax combines with the atmospheric oxygen and changes to carbon dioxide,heat and light.thus both the changes are accompanied by the burning of the candle.

3 0

1 year ago

Read 2 more answers

The degree of polarity of diatomic molecules is directly related to the difference in _____.

antiseptic1488 [7]

Electronegativity of the two atoms is your answer

3 0

4 years ago

Read 2 more answers

Fill in the blank with the correct answer to complete the sentence.

guajiro [1.7K]

Explanation: