During a lab experiment with magnesium and hydrochloric acid, curious carl observed bubbles being produced. he identified the gas as being hydrogen. the formula is: mg + 2hcl → mgcl2 + h2(g) - what is the mass in grams of two moles of hcl?

a. 18.3 g

b. 36.5 g

c. 73.0 g

d. 82.6 g

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

How would you reduce the volume of gas

What is the value of keq for the reaction expressed in scientific notation?