HELPPP QUICKK PLZ Question 2 (1 point) Mineral oil has a density of about 0.8 g/cm3
Which substances will float or sink in mineral oil?

-clay, iron, and lead will float and wood and wax will sink
-wood(pine) and wax (tealight candle) will float and clay, iron and lead will sink

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.