¿Cuántos gramos de helio (4.003 g/mol) hay en un globo que contiene 8.50 L del gas a una temperatura de 20 °C y a una presión de 800 torr? (8
puntos; 1 punto datos, 1 punto fórmula, 4 puntos procedimiento, 1 punto
resultado, 1 punto unidades) *

What does x represent in the formula for the compound xcl4?

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?

Which activity is an innate behavior