3. Wearing appropriate PPE cannot significantly reduce the risk of

True or False

antly reduce the risk of contracting HBV.

What is copper sulfate?

Why doesn't water change into ice at 10 degree Celsius? A The fusion of water is an endothermic change but at this temperature, the temperature entropy product outweighs the change in enthalpy. B.

Could anyone explain to me how to write a balanced net equation? BaCl2 (aq) + H2SO4 (aq) - - >BaSO4 (s) + HCl (aq)

Deciduous trees drop their leaves to conserve energy as they enter winter dormancy. In spring, new leaves appear, and the trees begin to grow again. Is likely that a deciduous tree photosynthesize in winter? Explain your answer.

Which definition best describes the term activation energy? the minimum net kinetic energy that colliding particles must possess in order to react the energy required to separate the ions in a crystalline solid the energy a compound possesses by

Which type of bond forms between water molecules? a. strong bond b. hydrogen bond c. covalent bond d. polar bond

Down syndrome is caused by the presence of an extra copy of chromosome 21. how would a karyotype identify a person with down syndrome? a) ID physical characteristics of someone with the disease.

Which expression is a measurement of denisty

Compare the information provided by a molecules chemical formula to the information provided by its structural formula

How is a circle different from an ellipse