A neutral atom of silicon-30 contains 14 protons. How many electrons does it have?

If 8.97 grams of (nh4) 2co3 is used to make a 0.250-molar solution, what is the final volume of the solution?

Suppose that a student did not stop the timer as soon as bubbling stopped during a test at 40°C. Check all possible resulting errors. Measurements at all temperatures will have errors. The reaction time will be too long.

2. In our bodies, carbon dioxode O is the gas we need to take|energy from our food O is the gas we make in our cells whenever we take energy from food makes up 21% of the atmosphere O is the gas we breathe in

Lithium is a metal with an oxidation number of 1 + and oxygen is a nonmetal with an oxidation number of 2-.

What conditions are required for heat transfer between states of matter to occur? In what direction will heat transfer occur?

How far is the Earth for the moon?

It is thought that organelles of eukaryotic organisms, such as mitochondria and chloroplasts (in plant cells) came from

How does temperature affect molecules

The color of Benedictâs solution is blue. What color does it change to in high sugar concentration?

What functional groups of the emulsifying agent provide the hydrophilic character? Do these groups affect the pH?