Why is it incorrect to balance a chemical equation by changing the subscripts?

What is copper combined with to make bronze

Which of the following will react violently with water to form a base?

A cell is a system of parts that work together to carry out basic life processes. An animal is also a system of parts that work together to carry out basic life processes.

If an element has two isotopes, what is the atomic mass if one of the isotopes has a mass of 15.000 amu and makes up 5.000% of the mass of the element while the other isotope has a mass of 16.000 amu and make up the remaining 95.000 %?

What are the potential problems for nearby water sources when using nuclear energy? Check all that apply. It contaminates water with radioactive waste. It adds very hot water to cool water environments.

If an element has 1 valence electrons, how many dots will be in the elements dot diagram?

What is the temperature of a gas at STP?

What is the numerical meaning of centimeter

You run an experiment to test the effects of temperature on solubility. What would you heat? A.) solvent B.) solute C.) the room B.) the beaker

What happens when a firework is ignited?