Dan states that a certain layer of the sun is like the brightest street lamp in a city. Which layer of the sun is Dan referring to? Chromosphere Convective zone Photosphere Radiative zone

Causes rocks to change composite when reacting with oxygen

A certain weak acid, ha, has a ka value of 3.6*10-7. part a calculate the percent ionization of ha in a 0.10 m solution. express your answer to two significant figures and include the appropriate units. view available hint (s)

Calcium (Ca) has an atomic number of 20. What is calcium's ground-state electron configuration? 1s21p61d101f2 1s21p62s22p63s23p2 1s22s22p63s23p64s2 1s22s22p63s23p63d2

In the reaction, 522.49 moles of barium chloride and unlimited amount of sulfuric acid react, to give, as products barium sulfate and hydrochloric acid. How much is the minimum amount of reactant required of sulfuric acid in moles.

Also is it normal for hair to fall out if they don't have enough vitamin d?

The scientific study of the behavior of matter near 0 K is called

Lithium has one valence electron. Bromine has seven valence electrons. How might they form a covalent bond? A. Bromine donates seven electron to lithium B. Bromine donates an electron to lithium C. Lithium donates seven electrons to Bromine D.

What is the measurement 1042 L rounded off to two signicant digits?

2CO + 2NO yields 2CO2 + N2 which element was oxidized

What what is any harm to the physical chemical or biological health of the ocean ecosystem