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
frez [133]
3 years ago
11

Write the formula for calcium chloride. Explain how you determined this formula

Chemistry
1 answer:
hichkok12 [17]3 years ago
7 0

Calcium forms an ion with a positive 2 charge and chlorine forms an ion with a negative one charg, so the formula is <span>CaC<span>l2</span></span>

Group 1 metals and group 2 metals form positive ions by losing 1 and 2 electrons respectively. Non-metals in group 17 gain 1, group 16 gain 2 and group 15 gain 3. Elements which lose electrons form positive ions while elements that gain electrons form negative ions. 

To write a formula, you must balance charges so the overall charge is zero. A simple way to do this is to swap the # of the ion's charge and make it the subscript of the other ion. However, leave off the number 1 and reduce to lowest whole number ratio.

You might be interested in
Which is an element? A) alcohol B) sodium C) sugar D) water
hichkok12 [17]
The answer is B, sodium is an element.
7 0
3 years ago
Read 2 more answers
You use a _______ when you are changing compounds
zvonat [6]

Answer:

snetence

Explanation:

nikkak youk dxmbk aslk istgk

3 0
2 years ago
Easyyy plz<br><br><br><br><br><br><br>What Is the Reactivity Series? ... ​
uysha [10]

Answer:

In chemistry the reactivity series is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to the lowest.

7 0
3 years ago
What is the wavelength of the matter wave associated with an electron (me= 9.1 x 10-31 kg) moving with a speed of 2.5 x 107 m/s?
Novay_Z [31]
Lambda = h\ Mv
lambda = 6.624 x 10^-34 / 9.1 x 10^-31 x 2.5 x 10^7
lambda = 2.9 x 10^-11 is your wavelength
3 0
3 years ago
How are endothermic and exothermic reactions the same how are they different?
svetoff [14.1K]

Endothermic reactions and Exothermic reaction are never the same.

They are both different.

Definitions

<span><span>Endothermic:- reactions that take in energy. For example:- electrolysis, thermal decomposition and the reaction between ethanic acid and sodium carbonate.
</span><span>Exothermic:- reactions that transfer energy to the surroundings. For example:- burning, neutralisation and the reaction between water and calcium oxide.</span></span>
3 0
3 years ago
Other questions:
  • A rock weighing 2 newtons was lifted 3 meters. how much work was done
    6·1 answer
  • Pb(OH)Cl, one of the lead compounds used in ancient Egyptian cosmetics, was prepared from PbO according to the following recipe:
    5·1 answer
  • Which of the following are NOT enclosed by a cell wall.
    14·1 answer
  • there is an ice cream shop 6 blocks north of your hotel. how many minutes will it take to walk there and back
    7·1 answer
  • Which of the following instruments has the highest pitch?<br> bass drum<br> flute<br> trombone
    11·2 answers
  • A major component of gasoline is octane C8H18. When liquid octane is burned in air it reacts with oxygen O2 gas to produce carbo
    15·1 answer
  • A candy bar has a total mass of 75.0 grams. In a calorimetry experiment, a 1.0-g sample of this candy bar was burned in a calori
    14·1 answer
  • Pls answer 24 and 26.pls explain
    8·1 answer
  • Can someone help me pleasee
    12·1 answer
  • Is there a relationship between the locations of earthquake, volcanoes, and plate boundaries? If so, describe the relationship.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!