(1)State a change that can be made to the apparatus in Figure 11 to measure the volumes of gas more accurately.
Q5.
The rate of reaction between magnesium ribbon and dilute hydrochloric acid at room temperature is
investigated. The apparatus used is shown in Figure 11. The volume of hydrogen gas given off was
measured at regular intervals during the reaction.

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Rays from the sun are not considered matter true or false

Detrimental the length of the object shown 1. 97.8mm 2. 97.80 mm 3. 97mm 4. 98mm