What information does "9" give about an atom of fluorine? Check all that apply.

the atomic number

the atomic mass

the number of protons

the number of electrons

the number of neutrons

is for physical science

How much energy is needed to heat 55 Kg of water from 285 K to 360 K?

What are comets made of?

Which of The following is a cost of mining aluminum from new bauxite deposits in tropical areas?

The total energy in a closed system remains the same or changes as energy changes forms

Can you think of a scenario when the kinetic and gravitational potential energy could both be zero

Microwave ovens emit microwave energy with a wavelength of 12.3 cm. What is the energy of exactly one photon of this microwave radiation?

When light bounces off a surface, which component will be reflected more - the component that is parallel to the surface, or the component that is perpendicular to the surface, and why?

What is 18 degrees celsius in fahrenheit?

A small object moves along the x-axis with acceleration ax (t) = - (0.0320m/s3) (15.0s-t). At t = 0 the object is at x = - 14.0 m and has velocity v0x = 8.90 m/s. What is the x-coordinate of the object when t = 10.0 s?

Nitrogen and Hydrogen react to form ammonia (NH3). The reaction looks like this: Ammonia What is the ratio of nitrogen atoms to hydrogen atoms in ammonia? 1 to 2 1 to 3 2 to 1 3 to 1