Calculate the amount of heat required to raise the temperature of an 84 g sample of water from 36 ∘C to 62 ∘C.

How can the precision due to random experimental error be improved

Dalton's atomic theory stated that every element was made of atoms that could not be subdivided, atoms of the same element are alike, and a. atoms are made of protons, neutrons, and electrons. b. the nucleus is the center of the atom. c.

How do chemical reactions impact our local water supply?

Explain why can two nonmetals bond together, but two metals cannot? A) Metals will only form covalent bonds. B) Nonmetals can share pairs of electrons and form ionic bonds. C) Nonmetals can share pairs of electrons and form covalent bonds.

Hola alguien me dise El numero de la ballena azul es que quierobhacerle bromas si alguien lo sabe digabmelo los espero

A mixture of two compounds, a and b, was separated by extraction. after the compounds were dried, their masses were found to be: 105 mg of compound a and 91 mg of compound b. both compounds were recrystallized and weighed again.

What are the five types of chemical reactions?

Which chemical reaction do plants use to take carbon dioxide out of the air

What are the primary elements of the earths layres?

How long does it usually take fir a rock to undergo a stage within the rock cycle