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
dusya [7]
4 years ago
12

Answer to the last part 48 part D!!!

Chemistry
1 answer:
Elena L [17]4 years ago
8 0

Answer :

In general trend,

The size of the element increases as we go down in a same group.

And the electronegativity of the element decreases as we go down in a same group.

For example : The two elements Magnesium and Calcium in a same group number 2.

The size of calcium is greater than the magnesium because as we go down in a group the atomic radius increases and the size also increases. And the electronegativity of calcium is less than the magnesium because as we go down in a group the electronegativity decreases.

You might be interested in
What are specatator ions
Margaret [11]

Answer:

A spectator ion is an ion that does not participate in a chemical reaction and is found in a solution before and after a reaction.

Hope this helped :)

5 0
3 years ago
During nuclear fission and fusion, what is matter that seems to disappear actually converted into?
hjlf

Answer:

During nuclear fission and fusion matter that seems to disappear but is actually converted into energy. The amount of energy (E) produced in such a reaction can be calculated using Einstein's formula for the equivalence of mass and energy: E = mc^2.

Explanation:

4 0
3 years ago
Read 2 more answers
Pls just help me out the vid is 6 Chemical Reactions That Changed History; need help on no.6. I DON’T EVEN KNOW HOW TO SOLVE IT
GREYUIT [131]

Explanation:

HCL you can do it yourself .try again

4 0
3 years ago
Mg(s) + ½O2(g) → MgO(s) + 146 kcal/mole H2(g) + ½O2(g) → H2O(g), ΔH = -57.82 kcal/mole What type of reaction is represented by t
professor190 [17]
Answer is: both reactions are exothermic.
<span>
In exothermic reactions, heat is released and enthalpy of reaction is less than zero (as it show second chemical reaction).
According to Le Chatelier's principle when the reaction is exothermic heat is included as a product (as it show first chemical reaction).</span>
4 0
3 years ago
Be + O2 --&gt; BeO<br><br> Balance this and what's the type of reaction?
max2010maxim [7]

Answer:

2Be + O2 = 2BeO

its a synthesis

Explanation:

7 0
3 years ago
Other questions:
  • Use the periodic table to give the name and symbol for each of the following elements:
    12·1 answer
  • The two oxygen atoms forming molecules of oxygen gas that you breath are joined by a polar covalent bond. Explain why this state
    5·1 answer
  • An element's atomic mass does not include the mass of its _____.
    7·1 answer
  • Please help question in the picture
    12·2 answers
  • What mass of calcium
    9·1 answer
  • Solid Mg(OH)2 is mixed with water and the following reversible reaction occurs:________.
    9·1 answer
  • Give a chemical formula for the compound formed when sulfur dioxide reacts with water
    7·1 answer
  • Professionals in a scientific laboratory and in the healthcare field need to accurately prepare solutions for a number of reason
    10·1 answer
  • How many grams of carbon dioxide gas are in a 1.0 L balloon at STP?
    11·1 answer
  • A gas is held at 120.4 kPa and 333K. When the temperature is decreased to
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!