This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Consider the isotope Br. The atomic number is ________, and the mass number is ________. A) 79; ... (Read 56 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
on: Aug 27, 2018
Consider the isotope Br. The atomic number is ________, and the mass number is ________.
 
  A) 79; 35
  B) 35; 79
  C) 44; 35
  D) 35; 44
  E) 35; 114

Question 2

Sodium metal and water react to form hydrogen and sodium hydroxide. If 5.98 g of sodium react with water to form 0.26 g of hydrogen and 10.40 g of sodium hydroxide, what mass of water was involved in the reaction?
 
  A) 4.68 g
  B) 5.98 g
  C) 10.14 g
  D) 10.66 g


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pangili4

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

A


jeatrice

  • Hero Member
  • *****
  • Posts: 543
Reply #2 on: Aug 27, 2018
Both answers were spot on, thank you once again


pangili4

  • Sr. Member
  • ****
  • Posts: 346
Reply #3 on: Aug 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb
Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones Internal structures of main sequence stars, convection zones with arrowed cycles and radiative zones
Changes in chromosome number Changes in chromosome number
A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass ... A 2.10-kg hammer is transported to the Moon. The radius of the Moon is 1.74 × 106 m, its mass ...
What is the isotopic atomic mass of an isotope if 9.7023 1022 atoms weighs 4.0256 g? What is the isotopic atomic mass of an isotope if 9.7023 1022 atoms weighs 4.0256 g?
Video: Chemical Changes

For a complete list of videos, visit our video library