Question

Investigation to determine whether expired air contains carbon dioxide
how should state the method,step by step for the experiment

Answer 1

Formulate a hypothesis for this investigation

Answer 2

carbon dioxide is present in expired air

Answer 3

state the aim of this determine whether expired air contains carbon dioxide

Answer 4

formula a hypothesis for this investigation of to determine wether expired air contains carbon dioxide.
Apparatus are two beakers/test tubes/straws,two drinking straws and clear lime water

Answer 5

I doooont kknow

Answer 6

the hypothesis is the test that expired air contains carbon dioxide

Answer 7

Formulate a hypothesis for this investigation