How many atoms are in 4 HNO³?

Which best describes nuclear fusion? A nucleus spontaneously splits and absorbs energy. Two nuclei spontaneously combine and absorb energy. A nucleus collides with a neutron and splits, releasing energy.

Calculate the atomic mass of gallium, symbol Ga. Gallium has two isotopes: Ga-69 and Ga-71. The relative abundance of Ga-69 is 60.12% and its atomic mass is 68.9257 amu. The relative abundance of Ga-71 is 39.88% and its atomic mass is 70.9249 amu

Which of the following statements is true? Water is easily polluted because it can dissolve harmful chemicals O When water freezes, it contracts and becomes more dense.

4. What type of substance would be best for use in a heating system? A liquid with a high specific heat A liquid with a low specific heat A gas with a low specific heat An explanation of why the answer is right.

What set of compounds illustrates the law of multiple proportions. A. N2O, NO, NO2 B. NaCl, NaBr, Nal. C. CH4, CO, CCl4. D. all of these

Which microscope came out first

Which exerts greater pressure on the floor-standing flat-footed or standing on tiptoe? on tiptoe, because the force acts over less area on tiptoe, because the force acts over more area flat-footed, because the force acts over more area flat-footed,

1. Sara tells Michael she is 160 centimeters tall, while Michael says he is 60 inches tall. If there are 2.54 centimeters in an inch, who is taller

How do you tell if a compound is polar or non polar

What two ions are central to the arrhenius definitions of acids and bases?