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
quester [9]
3 years ago
11

The "hardness" of water describes _____.

Chemistry
2 answers:
krok68 [10]3 years ago
6 0
Your answer is C. its level of dissolved minerals ~A
lozanna [386]3 years ago
4 0

its level of dissolved mineralslololol

You might be interested in
A gas has a volume of 56.3L when its temperature is 280 K. What will volume be at 220K?
Alex Ar [27]

Answer:

44.23 L

use pascal's formula

8 0
3 years ago
4. A student started with a 0.032 g sample of copper which he took through the series of reactions described in this experiment.
Elodia [21]

Answer:

Y=48.6\%

Explanation:

Hello,

In this case, we can consider the following chemical reaction for the oxidation of copper which only occurs at high temperatures:

2Cu+O_2\rightarrow 2CuO

In such a way, for 0.032 grams of copper, the following grams of copper (II) oxide (black product) are yielded:

m_{CuO}=0.032gCu*\frac{1molCu}{63.546gCu} *\frac{2molCuO}{2molCu}*\frac{79.546gCuO}{1molCuO}  =0.078gCuO

Therefore, the percent yield is:

Y=\frac{0.038g}{0.078g}*100\%\\ \\Y=48.6\%

Best regards.

6 0
3 years ago
What is another name for a Grasshopper?
Alchen [17]

Answer:

The scientific name of the grasshopper is Caelifera.

Explanation:

hope this helps.

3 0
2 years ago
Read 2 more answers
Calculate the volume of the object immersed in the water in the water in the adjoining figur. ​
kirza4 [7]

Answer:

100 cm³

Explanation:

Hi there!

Subtract:

400 cm³ - 300 cm³

= 100 cm³

Therefore, the volume of the object is 100 cm³.

I hope this helps!

5 0
3 years ago
What is an individual living entity called?
Citrus2011 [14]

Answer:

it is organism the third one

4 0
3 years ago
Read 2 more answers
Other questions:
  • What are salt ? How they are used
    11·1 answer
  • What happens to the partial pressure of oxygen in a sample of air if the temperature is increased? It increases. It decreases. I
    6·1 answer
  • An acid
    15·1 answer
  • Write a balanced equation for decomposition of H2CO3
    6·1 answer
  • What happens to the density of most substances as they cool and solidify?
    5·1 answer
  • So it will help you see what is 5 times 9 it is 40.
    11·1 answer
  • 1.Which statement best describes scientific laws
    13·1 answer
  • Which statement correctly describes the relationship between reactant and yield? The actual yield is calculated from the amount
    15·2 answers
  • No links right answers only!! 9recipitation like in the Arctic tundra.
    5·2 answers
  • True or false, physical properties are distinguished by the way something looks, taste, smell, and feels.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!