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
kicyunya [14]
3 years ago
5

I need help please thanks

Chemistry
1 answer:
harina [27]3 years ago
7 0

The answer is A because when an atom has more electrons in its outer shell, It becomes more reactive

You might be interested in
What is the full form of alcl3​
Likurg_2 [28]

Answer:

Aluminum Chloride

Explanation:

8 0
3 years ago
How many moles of hydrogen are in 5.2 moles of C7H18
maksim [4K]
In one mole of C7H18 there are 18 moles of H (the number folowing the H)*
>> the ratio is 1:18

In 5.2 moles of C7H18 there are x moles of H
>> the ratio is 5.2:x

Cross multiply the two ratios
1x = 18×5.2
x = 93.6 moles of H

>> In 5.2 moles of C7H18 there are 93.6 moles of H




* This isnt a rule that you can always use.
However to find the mole of a certain element in a certain molucle all you have to do is count how many moles of the element are present in the molecule.
>> example1 >> H2O ;
2 H and 1 O

>> example2 >> CH3COOH ; [you add up all the moles of the same element]
(1+1) 2 C , (3+1) 4 H and (1+1) 2 O

>> example3 >> Mg(OH)2 ; [you multiply whetever is in parenthesis by the number after it 2] 1 Mg , (1×2) 2 O and (1×2) 2 H
6 0
3 years ago
Read 2 more answers
How much energy is reflected by the Earth system?<br><br> 31 percent<br><br> 69 percent
s344n2d4d5 [400]
69 percent pleaseeeeeee
4 0
2 years ago
Read 2 more answers
Dolphins communicate using compression waves (longitudinal waves). Some of the sounds dolphins make are outside the range of hum
Alchen [17]
Question 4 is <span>A. longitudinal waves </span>
8 0
2 years ago
What is the difference between chemistry and science
sergeinik [125]

Answer:

hi

Explanation:

chemistry the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

Science the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

8 0
3 years ago
Other questions:
  • Mario uses a hot plate to heat a beaker of 50mL of water. He used a thermometer to measure the temperature of the water. The wat
    9·2 answers
  • Good night everyone <br> Hope y’all have a great day and sleep
    11·2 answers
  • Seasonal variation in Earth's climate are caused by
    5·1 answer
  • The sodium ion is attracted to the ________________side of the water molecule and the chlorine ion is attracted to the _________
    8·2 answers
  • Josh drives her scooter 7 km north. she stops for lunch and then drives 5 km east. what distance does she cover? what was her di
    5·1 answer
  • How does raising the temperature affect the rate of reaction
    7·1 answer
  • What is the mass of glyphosate
    11·1 answer
  • Calculate the mass of bromine in 50.0 g of potassium bromide
    9·1 answer
  • A body of mass 5kg has momentum of 125kgm/s. find the velocity of the body in motion.
    15·1 answer
  • What is neutron?<br>What is Atom?<br><br>​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!