The answer is x = 3 cause 4=Fe=4 so its balanced
3=O2=3
Answer:
The answer to your question is a) pure substance- compound
Explanation:
a) pure substance-compound. A pure substance can be an element or compound that is not mixed with another substance, glucose is a compound and also a pure substance.
b) mixture-heterogeneous. This option is wrong because glucose is not mixed with another substance.
c) pure substance-element. Glucose is a pure substance but it is a compound because it is composed of carbon, hydrogen, and oxygen. This option is incorrect.
d) mixture-homogeneous. Glucose is not a mixture, it is a pure substance. This option is wrong.
e) none of the above. This option is wrong because the first option is correct.
Answer:
An atom is a structure consisting of a nucleus, composed of protons and neutrons. and electrons orbiting around the nucleus. Protons, neutrons and electrons are considered to be 'fundamental particles (at least as far as chemistry is concerned. In physics, protons and neutrons are composed of even smaller particles). Hence electrons are one of the fundamental particles that make up atoms.
Explanation:
The law of conservation of mass is saying that matter can't me created or destroyed.
