imma give BRAINEST TO EVER KNOW THIS SONG i aint took my change off in weeks if i tuck it they gon try to kill me anyway and im praying to the god of the streets (God of the streets way to big to discreet anyway hope i fly in the of my N. gga if u know this u the real OG and who is the rapper

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as