Questions with the keyword 'chemical'

• Are there any chemicals in the air? If there is will it effect us and my mum says that because of all the chemicals in by bubblez13 to Amy, Drew, Julia, Kimberley, Sara Comments: (No comments so far )
• what makes an explosion happen when to things dont mix , for example mento’s and coke ? by seanod56 and 1 other. to Julia Comments: (So far, one comment )