1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oliga [24]
3 years ago
10

MULTIPLE CHOICE

Chemistry
1 answer:
algol [13]3 years ago
4 0

What we can actually do is to find the number of moles of Ca.

moles Ca = 0.72 g / (40.08 g/mol) = 0.018 mol

 

From the given choices, we can all see that there are 1 mol of compound per 1 mole of Ca. Therefore the actual moles of compound is also 0.018 mol. From this, calculate the mass and the answer is the one which will give 2 g.

 

Answer:

D. CaCl2

You might be interested in
What ways we can prevent rusting? Explain.​
timama [110]

Answer:

By electroplating

Explanation:

The metal which requires to be protected from rust is connected to the anode while a lower metal in the series is connected to the cathode, the a complete circuit is made and current is passed through the circuit there by resulting to the coating of the metal at the anode.

7 0
3 years ago
Which of the following statements about salinity is true?
diamong [38]

Answer:

The answer would be B.

Explanation:

 

Ocean water near areas with low evaporation has higher salinity.

if im wrong please tell me .__.

4 0
3 years ago
Read 2 more answers
What are the relationships between temperature and viscosity of water?
iris [78.8K]

Explanation:

Both cohesion and molecular interchange contribute to liquid viscosity. The impact of increasing the temperature of a liquid is to reduce the cohesive forces while simultaneously increasing the rate of molecular interchange. The former effect causes a decrease in the shear stress while the latter causes it to increase.

temperature?

The viscosity of liquids decreases rapidly with an increase in temperature, and the viscosity of gases increases with an increase in temperature. Thus, upon heating, liquids flow more easily, whereas gases flow more sluggishly.

mark as brainliest

8 0
3 years ago
I’m so confused somebody help lol
Marysya12 [62]

Answer:

lol☺️☺️☺️☺️☺️☺️☺️☺️

5 0
3 years ago
Read 2 more answers
Which of the following is a unit of heat? 1. Fahrenheit 2. Energy 3. Joule 4. Celsius
ELEN [110]
The unit of heat is Joule
6 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles of ammonia are produced 16 miles of hydrogen gas react with plenty of hydrogen gas
    5·1 answer
  • Help asap please ty :)
    10·1 answer
  • Which explanation is least likely to be evidence for geological processes changing Earth's surface?
    15·2 answers
  • Which of the following representations shows how one variable changes in response to another variable?
    15·2 answers
  • What is the category name of these each:
    7·1 answer
  • Help ASAP
    6·1 answer
  • Which of these compounds do not have a pH dependent solubility at less than pH 7.00?
    12·1 answer
  • A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
    6·1 answer
  • How long will it take for a 40.0 gram sample of I-131 (half-life = 8.4 days) to decay to 1/16 its original mass?
    5·1 answer
  • Write the full electron configuration for an N2− ion
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!