Science

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Isotopes of an element have the same number of ______ and different numbers of _ Started by Mr. Wonderful	2 Replies 841 Views	May 9, 2014 by Mr. Wonderful
How do radioactive isotopes differ from isotopes? A) Radioactive isotopes have m Started by Mr. Wonderful	2 Replies 1,019 Views	May 9, 2014 by Mr. Wonderful
An atom with an electrical charge is a(n) ______. A) isotope B) molecule C) ion Started by Mr. Wonderful	2 Replies 780 Views	May 9, 2014 by Mr. Wonderful
The bond between oppositely charged ions is a(n) ______ bond. A) ionic B) polar Started by Mr. Wonderful	2 Replies 960 Views	May 9, 2014 by Mr. Wonderful
What name is given to bonds that involve the sharing of electrons? A) covalent B Started by Mr. Wonderful	2 Replies 943 Views	May 9, 2014 by Mr. Wonderful
Sulfur has an atomic number of 16. How many covalent bonds can sulfur form? A) 1 Started by Mr. Wonderful	2 Replies 1,763 Views	May 9, 2014 by Mr. Wonderful
The hydrogens and oxygen of a water molecule are held together by ______ bonds. Started by Mr. Wonderful	2 Replies 875 Views	May 9, 2014 by Mr. Wonderful
Why is water considered a polar molecule? A) The oxygen is found between the two Started by Mr. Wonderful	2 Replies 669 Views	May 9, 2014 by Mr. Wonderful
Adjacent water molecules are joined by ______ bonds. A) covalent only B) ionic C Started by Mr. Wonderful	2 Replies 1,103 Views	May 9, 2014 by Mr. Wonderful
How many oxygen atoms are in the products of the following reaction? C6H12O6 + 6 Started by Mr. Wonderful	2 Replies 923 Views	May 9, 2014 by Mr. Wonderful
What are the reactant(s) in the following chemical reaction? C6H12O6 + 6 H2O + 6 Started by Mr. Wonderful	2 Replies 658 Views	May 9, 2014 by Mr. Wonderful
Human body cells are approximately ______ water. A) 95—99% B) 25—35% C) 50—55% D Started by Mr. Wonderful	2 Replies 1,045 Views	May 9, 2014 by Mr. Wonderful
The tendency of molecules of the same kind to stick together is called ______. A Started by Mr. Wonderful	2 Replies 1,006 Views	May 9, 2014 by Mr. Wonderful
In a scientific experiment, the control group ______. A) serves as a basis of c Started by Mr. Wonderful	1 Replies 523 Views	May 9, 2014 by Millan
As water freezes, ______. A) its molecules move farther apart B) it cools the su Started by Mr. Wonderful	1 Replies 1,318 Views	May 9, 2014 by Millan
Cellular respiration can be described as the conversion of the energy ______. A) Started by Mr. Wonderful	2 Replies 1,729 Views	Apr 29, 2014 by Mr. Wonderful
Which of the following is hydrophilic? A) cellulose B) testosterone C) butter D) Started by Mr. Wonderful	2 Replies 2,725 Views	Apr 29, 2014 by Mr. Wonderful
Cellulose is an example of ______. A) a polypeptide B) a steroid C) fiber D) fat Started by Mr. Wonderful	2 Replies 9,551 Views	Apr 29, 2014 by Mr. Wonderful
Animals store carbohydrates as ______. A) cellulose B) glycogen C) starch D) mal Started by Mr. Wonderful	2 Replies 3,114 Views	Apr 29, 2014 by Mr. Wonderful
Which of the following is an example of a polysaccharide? A) glucose B) starch C Started by Mr. Wonderful	2 Replies 826 Views	Apr 29, 2014 by Mr. Wonderful
For good health, it is important to include ______ in our diets. A) fructose B) Started by Mr. Wonderful	2 Replies 1,316 Views	Apr 29, 2014 by Mr. Wonderful
Table sugar is ______. A) glucose, a monosaccharide B) glucose, a disaccharide C Started by Mr. Wonderful	2 Replies 2,143 Views	Apr 29, 2014 by Mr. Wonderful
In the following equation, lactose is a ______. galactose + glucose ? lactose + Started by Mr. Wonderful	2 Replies 815 Views	Apr 29, 2014 by Mr. Wonderful
Complete the equation: monosaccharide + monosaccharide ? ______ + water A) disac Started by Mr. Wonderful	2 Replies 865 Views	Apr 29, 2014 by Mr. Wonderful
Carbohydrates typically include ______. A) an NH2 group B) C, H, and O atoms C) Started by Mr. Wonderful	2 Replies 2,045 Views	Apr 29, 2014 by Mr. Wonderful