Mention the various ways by which soluble and insoluble salts are prepared

How do you find the number of electrons?

Which of the following provides evidence to support Thomson's hypothesis about electrons? Gold foil experiment Cathode ray experiments Spectrum of colors emitted by gas Radiation produced when beryllium is bombarded with alpha particles

What type of rock does the ocean floor consist of? 1 Igneous basalt rock 2 Igneous granite rock 3 Sedimentary rock 4 Metamorphic rock

Is burning a leaf a chemical change or physical change

How Do You Classify In Science

1. What is something you might see a scientist doing?

Is fire living or non living

Which of these is used to find the estimated age range of a fossil?

I want to convert atoms to moles. My friend tells my to multiply the number of atoms by 6.02 x 102. Is my friend correct?

Combining 0.301 mol Fe2O3 with excess carbon produced 11.6 g Fe. Fe2O3+3C⟶2Fe+3CO What is the actual yield of iron in moles?