In which substance does sulfur have an oxidation state of + 4

What is the condition of the outside air at a certain time and place?

Do strong acid and strong base have similar effects on protein solubility and denaturation

You have 75.0 ml of 0.10 m ha. after adding 30.0 ml of 0.10 m naoh, the ph is 5.50. what is the ka value of ha?

Which of the following terms is most closely related to igneous rock? magma clasts pressure gneiss

A campfire is an example of A. a fusion reaction. B. an exothermic reaction. C. a spontaneous reaction. D. an endothermic reaction.

Two skydivers jump out of a plane. As the skydivers are in free fall, the potential energy they possessed at the airplane door Is being converted to kinetic energy True False

What part of an atom has no relative mass

A scientist studies the DNA of three different species. The DNA from species A is more similar to DNA from species B than DNA from species C. Which species are probably the most closely related? Explain your answer.

Gamma rays are waves of energy that have no charge. true false

Describe what a polar covalent bond is and name a common compound that has a polar covalent bond holding it together