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
Nana76 [90]
3 years ago
10

Which element will be more reactive - Mg (magnesium) OR Se (Selenium)? *

Chemistry
1 answer:
anygoal [31]3 years ago
5 0

Answer:

magnesium

Explanation:

magnesium is in Group 2, in the periodic table. this means that it has 2 valence electrons. the less valence electrons an element or atom has, the more reactive. Selenium has 6 valence electrons. as a result, Mg is more reactive

You might be interested in
Calcium chlorate has the formula Ca(ClO3)2. Which best describes the structure of calcium chlorate? One molecule of calcium chlo
deff fn [24]
The formula Ca(ClO3)2 breaks down to: 1 calcium atom, 2 chlorine atoms, and 6 oxygen atoms. Therefore:

One molecule of calcium chlorate contains 9 atoms [correct]

Calcium chlorate is not an element, nor does the molecule contain only 3 atoms [incorrect]

It does not take 9 different elements - just the three elements we listed [incorrect]

Calcium chloride only contains one Ca group [incorrect]


6 0
3 years ago
Read 2 more answers
What is the best name for the molecule below? (2 points)
Levart [38]
Given:

A compound with:

Number of carbon atoms = 9
Number of double bonds = 1 
A double bond between 5th and 6th carbon
A propyl group (CH2CH2CH3) branching off the 3rd carbon from the left

Try to illustrate the given and observe the formation of the atoms. Now, follow the correct IUPAC naming system. The name of the compound is 

4-propyl-1-hexene

Count from the right to the left, the double bond is between the 1st and 2nd carbon, thus, 1-hexene. The propyl branches out the 4th carbon from the right, thus 4-propyl. 


4 0
3 years ago
Read 2 more answers
What is the predicted change in the boiling point of water when 2.10 g of
daser333 [38]

Answer:

A: 0.0028°C

Explanation:

Hopefully this helps!

6 0
3 years ago
At 19 °C, the vapor pressure of pure ethanol is 40.0 mmHg.<br> What is the pressure in atm?<br> atm
m_a_m_a [10]

Answer:

0.05263158 atm

Explanation: mmHg to Atmosphere Conversion Example. Task: Convert 975 mmHg to atmospheres (show work) Formula: mmHg ÷ 760 = atm Calculations: 975 mmHg ÷ 760 = 1.28289474 atm Result: 975 mmHg is equal to 1.28289474 atm. This is an example for how i got the answer.

5 0
2 years ago
Which material has a greater density, lead or feathers?
algol13

Lead has a higher density


5 0
3 years ago
Other questions:
  • Which nonmetal is likely to be least reactive
    12·2 answers
  • Is breaking an egg an example of a physical or chemical change? explain your answer.
    15·1 answer
  • In the early studies of chemistry, scientists used properties and changed to help identify compounds. this is still done today.
    14·1 answer
  • Calculate the mass number of an atom that has 92 protons and 108 neutrons
    14·1 answer
  • Which solution has the highest vapor pressure?
    9·1 answer
  • Why do plants need sunlight for photosynthesis?
    11·2 answers
  • A swimmer is moving at a speed of 2.0 meters/second. How long will it take for the swimmer to go 100 meters?
    7·1 answer
  • What is the difference between nuclear fusion and nuclear fission?
    9·1 answer
  • Can you help me please​
    14·1 answer
  • Iron filling's were mixed together with salt crystal's What unique property of iron would be BEST to separate the fillings from
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!