Which statement would indicate the presence of an acid?

A) It tastes bitter ...

B) It does not react with active metals.

C) It reacts with active metals to form a gas.

D) It does not change the color of litmus paper

What is a niche of a greenfly?

Salt dissolving in water is a physical change. True or False

A liquid that occupies a volume of 0.820 L has a mass of 2.56 kg. what is the density of this liquid in kg/L explain your answer

How to test whether a vegetable or fruit can conduct electricity?

If you have 8.29 moles of O2 how many moles of H2O can be produced?

What's difference between "formula unit" and "molecule"?

It is nighttime where Candice lives, so A. she will be able to see half of the Sun in the sky. B. she will be able to see both the Sun and the Moon in the sky. C. she will not be able to see the Sun in the sky. D.

How many moles are in 1.2*10^3g of ammonia

What are the two gases that escaped Earth's atmosphere during early formation? A. Helium and nitrogen B. Helium and oxygen C. Hydrogen and helium D. Hydrogen and nitrogen

Distinguish between elements, compound and mixture