Calculate the mass of oxygen that combines with 20.4g of magnesium to form 34.0g of magnesium oxide

Sample A consists of calcium pellets. sample B consists of powdered calcium. which properties are the same for both samples A and B

The si unit for measuring acceleration is?

7 An atom that has 13 protons and 15 neutrons is an isotope of the element (1) nickel (3) aluminum (2) silicon (4) phosphorus

How many net number of ATP molecules are produced from Palmitic acid during beta oxidation process?

The curved top surface of a liquid column

A small 15 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

Liquid water is heated until it boils and becomes water gas. Which statement is true about the water?

You are conducting an experiment on plant growth. You take a plant fresh from the soil that weighs 5 kilograms (kg). Then you dry the plant overnight and determine the dry weight to be 1 kg.

What is the ratio of Fe+3 ions to O2 - ions in a neutral compound? a. 1:2 b. 2:1 c. 2:3 d. 3:2

What is the specific heat capacity of a 17.5g sample of an unknown metal that releases 6700J of heat when it cools from 90 to 25 degrees C?