How are changes between phases consistent with the law of conservation of matter

Urea, which has the chemical formula (NH2) 2CO, is a fertilizer that can be prepared by reacting ammonia (NH3) with carbon dioxide (CO2). Given the following chemical equation, what is the theoretical yield of urea (in grams) if 4.

Why are chemistry containers made of glass?

Four moles of Argon gas are at a pressure of 1.90 atm, and the temperature is 50 degrees C. What is the volume of the gas?

What are the characteristics that make elements different from compounds?

Photosynthesis produces carbon dioxide and energy carbon dioxide and oxygen glucose and oxygen glucose and carbon dioxide

Reaction rates are affected by how often the particles collide true false

A 25 N and 5 N force pull to the right. Friction is 10 N. If the object is 5 kg, find the net force and acceleration.

What properties of matter are intensive independent of their size

What is the density of an object having a mass of 8.0g and a volume of 25cm3

What is a Cilla? (In drawing)