An Atom's mass number is 210 and its atomic number is 85. How many neutrons does the atom have?

a. 85

b. 125

c. 210

d. 295

How do the properties of buffered and unbuffered solutions compare?

What is the natural rate of nitrogen fixation in Earth's ecosystems? What is the natural rate of nitrogen fixation in Earth's ecosystems?

which term correctly describes all of the following materials (salt water, vinegar, bronze, air, beach sand

What is the name for the new technology that works on the atomic or molecular level? a. nanotechnology b. invisotechnology c. digitech d. spectromotography

I will give correct answer Brainiest! A student team is designing an experiment to test the acceleration of a cart acted on by a constant force on both level and sloped surfaces.

The data below were collected for the following reaction at 500 ∘C: CH3CN (g) →CH3NC (g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.

How do i convert 3.00 moles H2 to molecules?

How can you use the chemical formulas for sucrose (C6H, 20,) and rust (Fe, O,) to classity them ionic or molecular compounds?

What is true of energy as is passes through an ecosystem? a. All of the energy in an organism is used by the animal that eats it. b. Any stored energy in an organism is used by the animal that eats it. c.

Which can associate a suspect and the firing of a gun? (its not b) A) markings on the gun's exterior B) markings on the casing C) markings on the bullet D) powder residues