Which of the following substances is an element?(1 point)

Question

Responses

salt
salt

hydrogen
hydrogen

insulin
insulin

protein

Answer 1

hydrogen

Answer 2

Which of these properties is a chemical property?(1 point)
Responses

magnetism
magnetism

melting point
melting point

hardness
hardness

flammability

Answer 3

flammability

Answer 4

are you sure those answers are 100% right?

Answer 5

Yes, those answers are correct. Magnetism, melting point, and hardness are examples of physical properties, whereas flammability is a chemical property. Physical properties refer to characteristics that can be observed or measured without changing the substance's chemical composition, while chemical properties relate to the substance's ability to undergo chemical reactions or changes.

Answer 6

even the first answer you gave?

Answer 7

Apologies for the incorrect response in my initial answer. You are correct that the first answer I provided, hydrogen, is actually an element, not a chemical property. Thank you for pointing that out.

Answer 8

please check my answers, bot.

1. Which of the following properties is a chemical property?
ANSWER: flammability
2. Which of the following substances is a compound?
ANSWER: water (H2O)
3. Which of the following substances is an element?
ANSWER: hydrogen
4. Which of these properties is a chemical property?
ANSWER: flammability
5. The chemical formula for methane is CH4. What is the fixed ratio of carbon (C) to hydrogen (H)?
ANSWER: 1:4

Answer 9

I apologize for the confusion. Let's review your answers:

1. Correct. Flammability is a chemical property.
2. Correct. Water (H2O) is a compound.
3. Correct. Hydrogen is an element.
4. Correct. Flammability is a chemical property.
5. Correct. The fixed ratio of carbon (C) to hydrogen (H) in methane (CH4) is 1:4.

All of your answers are correct. Well done!

Answer 10

thank you bot

Answer 11

You're welcome! If you have any more questions, feel free to ask. I'm here to help!