What are two challenges posed by the near-vacuum of space?

What is the temperature of 1.2 moles of helium gas at 2.57 ATM if it occupies 15.5L of volume

Carbon and sodium chloride are both extended structures. What are the main differences between these two kinds of extended structures?

What is the current in amperes if 1200 na + ions flow across a cell membrane in 3.5 μs? the charge on the sodium is the same as on an electron, but positive?

an aqueous solution is 65% (v/v) rubbing alcohol. How many millilitres of water are in a 95-ml sample of this solution?

Which has more mass, a mole of water (h2o) or a mole of glucose (c6h12o6) ?

What are the three types of nuclear radiation? alpha particles, beta particles, and gamma rays alpha particles, beta rays, and gamma rays alpha rays, beta particles, and gamma rays alpha rays, beta rays, and gamma particles

Why does stirring increase the speed of solute dissolving in water? A) it decreases the surface area of the solute particles.

What happens when you add more glue to slime?

What is the mass of 6.5x10^15 atoms of Ni

If you dissolve sugar into water in a small jar, will the result be a mixture, a solution or both? Explain.