Calculate the width of the cheek cell in micrometers

If you stirred some sugar in hydrochloric acid there would be a violent chemical reaction. This is because - Select one: A. sugar and hydrochloric acid have chemical properties that permit the reaction. B.

Imagine the earth's hydrosphere began to dry up and disappear. all of the following would be affected except a. heat released by the sun b. the hydrologic cycle c. living things in the biosphere d. weather in the atmosphere

What happens to the temperature of a substance while it boils? (Does it increase, decrease, or remain the same?) Scientifically, why is this?

How a metallic bond forms

Which of the following leads to a higher rate of diffusion? A. Cooled gas B. Higher molar mass of particles C. Higher velocity of particles D. Reduced temperature

Calculate the density of a rectangular solid that has a mass of 25.71 g, and its dimensions are 2.3 x 4.01 x 1.82 cm.

When the metal sample reacts with acid, the gas evolved will be collected over water; the gas is said to be "wet".

Solid iron (II) sulfide reacts with aqueous hydrochloric acid HCl to produce hydrogen sulfide gas H2S and aqueous iron (II) chloride.

How are mixtures compounds and elements alike?

The percentage of carbon dioxide in the atmosphere has increased in the last century and is a concern for the environment as it increases the greenhouse effect. Give one possible explanation for the increase of carbon dioxide in the atmosphere