Which equation illustrates conservation of mass? 1. H2 + Cl2 - HC1

2. H I C12 - 2HC1

3. H2 + O2 - H20

4. H2 - 02 - 2H20

What error is likely to occur if the hydrated salt is heated too strongly

Elena has two magnets. She puts one under a piece of paper. She holds the other one above it. The magnets attract each other. This shows that A) magnets can attract through solid materials. B) magnets cannot attract through solid materials.

Name two forms of energy associated with the particles that make up objects?

The concentration of a salt solution in terms of mass by mass percentage is 20% and the mass of the solution is 500g determine the mass of solute present in the solution

Given 3600 g of uranium 235. It has a half life of 40,000 years. How much is left after 240,000 years?

In warm water conditions, female offspring hatch from eggs laid by painted turtles. Male offspring are produced under cold conditions.

It takes 53.0 J to raise the temperature of an 11.0 g piece of unknown metal from 13.0∘C to 24.2 ∘ c. What is the specific heat for the metal?

What happens to the velocity of a sound wave in air if the temperature of the air increases

What word cannot be used to describe this organism?

Indicate the mechanistic symbol (SN1, SN2) that is most consistent with the following statement. Select the single best answer. The substitution product obtained by the solvolysis of tert-butyl iodide in methanol arises by this mechanism