A scientist has a "mystery element" that she wants to identify by using its properties. These properties include its freezing point. She collected data about the element's freezing point (horizontal line) and displayed it on the graph below. Use the graph above to determine the freezing point of the element (horizontal line). Which of these elements is the "mystery element"? The freezing point of each element is listed by its name. Question 4 options: iron (1539°C 1539 ° C ) nickel (1455°C 1455 ° C ) cobalt (1495°C 1495 ° C ) silicon (1430°C 1430 ° C )

If the mass of the products measured 120g what would the mass of the reactants a. 30g b. 60g c. 120g d. 240g

How is the composition of a meteorite relevant to finding out the composition of earth's core?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.