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
jek_recluse [69]
3 years ago
14

A certain element forms an ion with 36 electrons and a charge of +2. identify the element. express your answer as a chemical sym

bol.
Chemistry
1 answer:
blsea [12.9K]3 years ago
6 0

The element is Sr (strontium)

strontium is in atomic number 38 in the periodic table. Strontium has 2.8.8.8.8.2

it loses two electrons to become  stable hence it has a charge of   2+. when strontium loses two electron it form ion with 36 electrons

You might be interested in
a piece of food is burned in a calorimeter that contains 200.0g of water. If the temperature of the water rose from 65.0°C to 83
Flauer [41]

Answer: 15062.4 Joules

Explanation:

The quantity of heat energy (Q) required to heat a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since,

Q = ?

Mass of food = 200.0g

C = 4.184 j/g°C

Φ = (Final temperature - Initial temperature)

= 83.0°C - 65.0°C = 18°C

Then, Q = MCΦ

Q = 200.0g x 4.184 j/g°C x 18°C

Q = 15062.4 J

Thus, 15062.4 joules of heat energy was contained in the food.

4 0
3 years ago
PLZ HELP! THIS IS DUE IN A FEW MINS!
Ymorist [56]

Answer:

work and power increases or decreases opposite of the mass

Explanation:

This Is beacuse Work is the product of Mass, Gravity, and Height

6 0
3 years ago
Suggest a method for measuring the size of the colony.
Evgen [1.6K]

Answer:

Counting the number of colonies that arise on a pour plate can calculate the concentration by multiplying the count by the volume spread on the pour plate. Direct counting methods are easy to perform and do not require highly specialized equipment, but are often slower than other methods

Explanation:

I hope it will help you

7 0
3 years ago
What is true about energy in an ordinary chemical reaction? Energy is
Lisa [10]
The answer is statement #3.
4 0
3 years ago
Read 2 more answers
What are the chemical properties of oxygen?
wlad13 [49]
Hmm.... Oxygen support combustion. Other than that, rusting occur when oxygen is combined with metal. When iron rusts, it combines with oxygen. Hope it helps.
7 0
3 years ago
Other questions:
  • _____ is required to start a chemical reaction.
    7·1 answer
  • Find the number of moles of water that can be formed if you have 226 mol of hydrogen gas and 108 mol of oxygen gas.
    14·1 answer
  • How many moles of sodium metal are needed to make 3.6 moles of sodium chloride? Given the reaction: 2Na + Cl2 → 2NaCl
    11·2 answers
  • How many iron atoms would be produced by 4.5g of Fe2O3 reacting eith an excess of magnesium
    6·2 answers
  • Which mutation is harmful to the organism?
    9·2 answers
  • Explain the difference between an organic compound and a hydrocarbon
    12·1 answer
  • Wich symbols represent SI units for temperature?
    9·2 answers
  • HELP!!!
    14·1 answer
  • A student sets up a box with a flashlight that shines on a mirror located at position X. Other possible locations for objects in
    9·2 answers
  • What did I do wrong?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!