What is the tested variable in the experiment?

A certain shade of blue has a frequency of 7.17 * 1014 hz. what is the energy of exactly one photon of this light?

The density of magnesium is 1.7 g/cm3, and the density of iron is 7.9 g/cm3. Consider a block of iron with a mass of 819 g. What is the mass of a block of magnesium that has the same volume as the block of iron?

Explain hydrogen sulphide as a compound of sulphur.

Why is a control needed in a valid experiment?

Neglecting friction, if a pendulum bob has 100 joules of kinetic energy at the bottom of its swing, how much potential energy does it have at the top of its swing? A) 0 J B) 50 J C) 100 J D) 200 J

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.

The modern periodic table reflects many improvements to Mendeleev's original table. If Mendeleev's table was incorrect, why is it still studied in chemistry classrooms today?

Good evening everyone, I just wanted to know who's willing to talk to me

Explain how the nettle is adapted for defence and protection

How many moles of water vapors are formed when 10L of butane gas is burned in oxygen at STP?