6500 in 2 significant figures

Why will external fluid flow into a plant cell? because the external water concentration is greater because the external water concentration is less because the external salt concentration is greater because the external salt concentration is less?

A sample of iron having a mass of 93.3g is heated to 65.58OC is placed in 75.0g ofwater raising the temperature from 16.95 OC to 22.24 OC. Find the specific heatcapacity for this iron sample.

What is the difference between strong acids and weak acids?

Mannitol salt agar is defined as both a selective and a differential agar since it selects against non-halophiles and allows the researcher to distinguish between organisms that vary in their ability to ferment mannitol. True or false?

In the coordination compound (NH4) 2[Fe (OH2) F5], the Fe is octahedrally coordinated. (a) Based on the fact that F is a weak-field ligand, pre - dict whether this compound is diamagnetic or para - magnetic.

What did scientists observe using the earliest microscopes

Which statement describes the redox reaction that occurs when an object is electroplated? A. It is spontaneous and requires an electric current. B. It is spontaneous and produces an electric current. C.

How are electromagnetic different than all other waves

Find the ratio of speeds of an electron and a negative hydrogen ion (one having an extra electron) accelerated through the same voltage, assuming non-relativistic final speeds. Take the mass of the hydrogen ion to be 1.67*10^{-27} kg.

A type of rock that undergoes changes because of heat and pressure