Q: What are carbonated beverages pressurized with? Choices: - helium - dioxide - hydrogen - co2 A:
co2

(Question)
Q: What is critical for the formation of hemoglobin? Choices: - salts - proteins - platelets - iron ions A:
(Answer)
iron ions

Ques: Q: What are used to write nuclear equations for radioactive decay? Choices: - trigonometric symbols - critical symbols - radioactive symbols - nuclear symbols A:
Ans: nuclear symbols

(Q).
Q: What is a representation of the valence electrons of an atom that uses dots around the symbol of the element? Choices: - watson structure - right structure - time structure - lewis structure A:
(A).
lewis structure

Ques:Q: What occurs when two nonpolar liquids are mixed? Choices: - sediment - nonpolar interactions - refracted - nonpolar interactions - polar-nonpolar interactions - nonpolar-nonpolar interactions A:

Ans:nonpolar-nonpolar interactions

Ques:Q: What type of behavior occurs naturally in all animals of a given species? Choices: - stimulated - learned - acquired - innate A:

Ans:
innate