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
Ivahew [28]
3 years ago
14

Which is a characteristic of calcium?

Chemistry
1 answer:
posledela3 years ago
4 0
The answer is D
Calcium has two electrons in its outer energy shell
You might be interested in
In the following balanced neutralization reaction equation, how many moles of Ca(OH)2 are required to completely neutralize 1.2
Roman55 [17]
0.6 moles is the answer
5 0
3 years ago
Read 2 more answers
4. An atom is neutral because it has the same number of protons as it has:
stealth61 [152]
Neutrons the way this question is setup the atom would not be able to be neutral
7 0
3 years ago
A solution of 34% nacl is separated by a semipermeable membrane to a solution of 22% glucose. the membrane is only permeable to
Katyanochek1 [597]
The net osmosis will occur in the direction of the NaCl solution. This is because the solute concentration on that side is greater than that of the glucose solution. Osmosis is the process by which liquids move through semi permeable membrane from the region of lower concentration to the region of higher concentration.
Thus the water is going to move from the glucose solution into the NaCl solution.<span />
7 0
4 years ago
Read 2 more answers
How many grams of calcium chloride are needed to produce 10. 0 g of potassium chloride?
ozzi

Answer:

<u>7.44 grams CaCl2 will produce 10.0 grams KCl.</u>

Explanation:

The equation is balanced:

I've repeated it here, with the elements corrected for their initial capital letter.

CaCl2( aq) K2CO3( aq) → 2KCl( aq) CaCO3( aq)

This equation tells us that 1 mole of CaCl2 will produce 2 moles of KCl.

If we want 10.0g of KCl, we need to convert that mass into moles KCl by dividing by the molar mass of KCl, which is 74.55 grams/mole.

 (10.0 grams KCl)/(74.55 grams/mole) = 0.1341 moles of KCl.

We know that we'll need half that amount of moles CaCl2, since the balanced equation says we'll get twice the moles KCl for every one mole CaCl2.

So we'll need (0.1341 moles KCl)*(1 mole CaCl2/2moles KCl) = 0.0671 moles CaCl2.

The molar mass of CaCl2 is 110.98 grams/mole.

(0.0671 moles CaCl2)*(110.98 grams/mole) = 7.44 grams CaCl2

<u>7.44 grams CaCl2 will produce 10.0 grams KCl.</u>

6 0
2 years ago
All of the following are examples of a heterogeneous mixture EXCEPT:
CaHeK987 [17]
I think the answer is either a or d i haven't taken that class in awhile but if i were to pick one it would be D

3 0
3 years ago
Read 2 more answers
Other questions:
  • Two cups of the same size are filled to the brim with clear liquids. Cup A holds water. Cup B contains alcohol. Your teacher cha
    10·2 answers
  • The atoms of which element will NOT typically form ions?
    5·2 answers
  • 30 POINTS!<br><br><br>which FIVE statements are correct about PHOTOSYNTHESIS?
    7·2 answers
  • Please help!! ASAP Dora rolled a marble down a ramp and recorded the potential energy and kinetic energy of the marble at differ
    5·1 answer
  • the density of an object is 4.78 g/ml . if the object has a mass of 2.34. determine the volume of the object
    7·1 answer
  • Alanine is an amino acid with the formula C3H7NO2. How many atoms in all are in each molecule of alanine?
    12·1 answer
  • Wet snow is best for snow man building<br>​
    5·1 answer
  • HELP ASAP PLEASE.
    15·1 answer
  • Please Help Me
    13·1 answer
  • Identify the products of this single-replacement reaction between sulfuric acid and aluminum. Then balance the equation. (2 poin
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!