An element is in Group 15. The last electron added to an atom of this element will be in a (n) __ sublevel

a. p

b. d

c. f

d. s

The heat absorbed or released during a change of state is called

What is heat of vaporization? ОА. It is the heat required to change a substance's temperature by 1°C. OB. It is the heat required to change a gram of substance from a solid to a liquid. Ос.

As transformações estão presente em nosso cotidiano, elas nunca param de acontecer, na sua maioria invisível a olho nu. Quais critérios é preciso observar para identificar se ocorreu transformação?

Why does the gas pressure decreases as the volume increases?

2. The operation 12.34 + 56.78 will have a final answer calculated to the place. tens ones Correct answer 3 tenths hundredths

Determine the number of bonding electrons and the number of nonbonding electrons in the structure of xef2.

1. 1.204 x 1024 atoms He = ? moles He

How many atoms are in 35.1 g of sodium chloride (NaCl) ?

Write the complete balanced equation for the reaction that occurs when C3 H8 combusts in O2.

Which one of the following is not a homogeneous mixture? Question 18 options: vegetable soup carbonated beverages saline solution brewed tea