Chemistry » Page 91

Chemistry

Alayna Christensen

A 5.00g ball of hot iron at 200 degrees celcius is dropped int owater at 20 degrees celcius. The system acheives thermal equilibrium at 25 degrees celicus. calculate the mass of water heated.

Answer Answers (1)

Chemistry

Annabella

How can human activity can impact an organism's ability to obtain the resources it needs to survive

Answer Answers (1)

Chemistry

Mandi

At STP, how many liters of oxygen are required to react completely with 3.6 liters of hydrogen to form water, 2H 2 (g) + O 2 (g) - --> 2H 2O (g) ?

Answer Answers (1)

Chemistry

Sellers

Monatomic ions always carry a positive charge

O

A. True

O

B. False

Answer Answers (1)

Chemistry

Gisselle Bridges

What tool is used to measure the mass of something?

Answer Answers (1)

Chemistry

Moshe

Which of the following is the first step toward proposing solutions effectively?

a. Determine the desired outcome.

b. Propose a possible solution.

c. Act on a possible solution.

d. Identify the unresolved problem or dilemma.

Answer Answers (2)

Chemistry

Quinn Lang

What type of acid is sulfuric acid? Organic, monoprotic, triprotic, or diprotic

Answer Answers (1)

Chemistry

Mahoney

Shows quantities and how they vary by other factors A. bar graph B. line graph. C. circle graph

Answer Answers (1)

Chemistry

Tamia Patel

What occurs in the A horizon of soil

Answer Answers (1)

Chemistry

Guest

Why does a fluorine ion have a charge of - 1

Answer Answers (1)

Chemistry

Brenden

Cancer, impaired sexual function and cognitive impairment have been found to be related to

Answer smoking.

eating a caffeine-rich diet.

alcohol consumption.

eating a high-fat diet.

.

Answer Answers (1)

Chemistry

Allan Kirk

Which of the following correctly identifies the composition of an oxygen atom? A. 8 protons, 8 electrons, and 8 neutrons. B. 6 protons, 6 electrons, 6 neutrons. C. 8 protons, 6 electrons, 7 neutrons. D. 6 protons, 6 electrons and 12 neutrons

Answer Answers (1)

Chemistry

Rhianna Barr

After one half life, the ratio of parent atoms to daughter atoms in a sample is 1:2.

True or False

Answer Answers (1)

Chemistry

Kadence Fisher

All of the following can be used to define an acid except

a hydrogen ion donor in a reaction

a substance that increases the hydronium ion concentration of a solution

an electron-pair acceptor in a reaction

a substance that increases the hydroxide ion concentration of a solution

Answer Answers (1)

Chemistry

Kane Patrick

Number of electrons, protons, and neutrons contained in an atoms nucleus?

Answer Answers (1)