science class help me please
This page lists questions and answers that were posted by visitors named science class help me please.
Questions
The following questions were asked by visitors named science class help me please.
Answers
The following answers were posted by visitors named science class help me please.
Which of the following substances is a compound?(1 point) Responses oxygen (O) oxygen (O) gold (Au) gold (Au) carbon (C) carbon (C) water (H2 O)
2 years ago
Which of the following substances is an element?(1 point) Responses salt salt protein protein hydrogen hydrogen insulin
2 years ago
Which of these properties is a chemical property?(1 point) Responses melting point melting point hardness hardness magnetism magnetism flammability
2 years ago
Which of these properties is a chemical property?(1 point) Responses melting point melting point hardness hardness magnetism magnetism flammability
2 years ago
The chemical formula for methane is CH 4 . What is the fixed ratio of carbon (C) to hydrogen (H)?(1 point) Responses 1:1 1:1 1:5 1:5 4:5 4:5 1:4
2 years ago