Carbon-14 has 6 protons and 8 neutrons; which element has 6 protons and 7 neutrons? c-13 si-14 c-6

Which of the following is absent in the three cell model of global circulation? O the Coriolis force O Earth axis tilt O thermal circulation cells O solar heating of Earth's surface

What is the formula for sodium oxalate

A compound is a type of matter true or false

Why would there be a concern with glaciers melting because of global warming? A. because it could lead to the ocean currents warming up B. because it could lead to an abundant amount of marine life C.

This is when water freezes, expands, pushing the rock apart slowly over a period of time.

Which is measured using a calorimeter

5) Solid lithium metal is added to an aqueous solution of magnesium chloride forming lithium chloride solution and solid magnesium a. If you begin the reaction with 15.0 g of lithium and 25.

Which element easily loses one electron to form a positive ion? A. Magnesium (Mg) B. Lithium (Li) C. Nitrogen (N) D. Fluorine (F)

What is an indication a chemical reaction has occurred? A.) Formation of gas B.) Boiling of a substance C.) Melting of a substance D.) Freezing of a substance

A saline solution contains 1.6 % NaCl by mass. How much NaCl is present in 57.2 g of this solution?