The variable in an experiment that is changed on purpose

Based on the law of conservation of mass, which of the following statements is correct? Matter is neither created nor destroyed. Matter can be created but it cannot be destroyed.

If someone is watching someone watching the tv and hes watching someone watching the tv and the other one is watching someone watching the tv and then the next is one is watching someone watching the tv

How do you think the blues emerged as a main musical form of the harlem renaissance?

Elemental phosphorus reacts with chlorine gas according to the equation p4 (s) + 6cl2 (g) →4pcl3 (l) a reaction mixture initially contains 45.77 g p4 and 130.0 g cl2.

A base is also known as a alkali, soother, or indicator

A nitrogen-containing compound shows no absorption band at ∼3400cm-1 and no absorption bands between ∼1700cm-1 and ∼1600cm-1. what class of compound is it

What is the mass of 35.2 ml of a solution that has a density of 1.12 g/cm (in dimensional analysis)

What is the molecular geometry, or shape, of beryllium chloride (becl2) ?

What is the best category for nf3? 1. amphoteric ion 2. lewis acid 3. salt 4. bronsted-lowry acid 5. arrhenius acid 6. arrhenius base 7. lewis base 8. weak electrolyte?

100 g = ___hg for science