What country absorbs more co2 than it gives off?

Is lithium a metal metalloid or non metal

A student used 10mL water instead of 30mL for extraction of salt from mixture. How may this change the percentage of NaCl extracted?

If 38.7 grams of lithium chlorate decomposes, how many grams of oxygen gas can be produced? 2LiClO3 → 2LiCl + 3O2 41.1 g O2 20.6 g O2 9.13 g O2 6.85 g O2

In the science lab, students are testing solutions as acids or bases. the ph level of solution "x" was determined to be an 8. what is solution "x"?

For the reaction represented by the equation pb (no3) 2 + 2ki → pbi2 + 2kno3, how many moles of lead (ii) iodide are produced from 300. g of potassium iodide and an excess of pb (no3) 2? a. 11.0 mol selected: b. 1.81 mol c. 3.61 mol d. 0.904 mol

Consider the model of a sodium atom. An orange circle labeled upper N a is surrounded by three concentric circles. The innermost ring has dots at the north and south positions.

In the following reaction: Mg + 2HCl → MgCl2 + H2 How many liters of H2 would be produced if you started with 24.3 g of Mg?

How much heat, in calories, is given off when 1.25 grams of silver is cooled from 100.0°C to 80.0°C? (The specific heat of silver is 0.057 cal/g°C)

A. What is temperature really a measure of?

A chemist needs to find out how large of a container would be required to contain the products of an ammonia decomposition. If 8.91 mol H2 are produced during the reaction, how many moles of N2 are produced?