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
Anvisha [2.4K]
3 years ago
15

13. Describe briefly how you figured out what the name of the element is:

Chemistry
1 answer:
zloy xaker [14]3 years ago
7 0
Answer:
13) between the nucleus, there is a proton and electron number given, (looking at the periodic table, it gives you the name of the element)

14) an ion, in any element has a POSITIVE charge no matter what.. the numbers depend on what it element the ion is with..
You might be interested in
A 1.25 × 10-4 m solution of the anti-inflammatory drug naproxen has a ph = 4.2. the ka and pka of naproxen are ________ and ____
Mandarinka [93]

Naproxen is known to be a weak acid. In order to calculate its ka and pka, use the equation of getting the ph of weak acid which is ph= -1/2 log [(Ka)(Mwa)]. The Ka value is 3.18x10^-5. The pKa can be obtained through pKa = - log Ka. The pKa is 4.5. 

6 0
3 years ago
Read 2 more answers
Explain why CaCl2 is likely to have properties similar to those of CaBr2
qaws [65]

Answer:

Because both CaCl2 and CaBr2 both contain elements (Chlorine and Bromine) from the same group (group 7)

Explanation:

Elements are placed into different groups in the periodic table. Elements in the same group are those that have the same number of valence electrons in their outermost shell and as a result will behave similar chemically i.e. will react with other elements in the same manner.

Chlorine and Bromine are two elements belonging to group 7 of the periodic table. They are called HALOGENS and they have seven valence electrons in their outermost shell. Hence, when they form a compound with Calcium, a group two element, these compounds (CaCl2 and CaBr2) will possess similar properties because they have elements that are from the same group (halogen group).

4 0
3 years ago
2 points
Westkost [7]

Answer:

Law of conservation of mass

Ernest Rutherford

Explanation:

The basic law of behavior of matter that states that "mass is neither created nor destroyed in a chemical reaction or physical change".

This is the law of conservation of mass. It is very essential in understanding most chemical reaction. Also, in quantitative analysis, this law is pivotal.

Ernest Rutherford was the scientist that stated that the nucleus is made up of positive charge. It was not until James Chadwick in 1932 discovered the neutron that we had an understanding of this nuclear component.

Rutherford surmised from his experiment that because most the alpha particles passed through the thin Gold foil and just a tiny fraction was deflected back, the atom is made is made up of small nucleus that is positively charged.

4 0
3 years ago
Why are numbers placed before the elements and molecules in a<br>chemical equation?​
Neko [114]

Answer:

the are coefficients for the atom. the tell how many there are.

Explanation:

they tell you how many atoms there are of its type.

ex. 4 C²H³. there are 4 of the c² and h³ (couldn't find a way to use subscript so used the power signs to show.)

7 0
3 years ago
A chemistry teacher carried out several demonstrations, and students recorded their observations. For one of the demonstrations,
PIT_PIT [208]

Answer:

It demonstrates that it a physical change because you can't see nothing happening but something happening

Sry if it doesn't make sense

4 0
3 years ago
Read 2 more answers
Other questions:
  • The diagram shows an image produced by a lens.
    12·2 answers
  • What is the pressure exerted by 1.2 moles of a gas with a
    5·2 answers
  • Biology
    8·2 answers
  • HELP NEED SIMPLE ANSWER!!!! WILL GIVE BRAINIEST!!!
    10·1 answer
  • what quantity of ethylen glycol must be added to 125 g of water to raise the boiling point of 1.0 degrees celsuis
    13·1 answer
  • If a wave has a wave height of 5 meters, in what depth of water would it begin to break?
    5·1 answer
  • Discuss how the actions of the forklifts are related to actions in cells
    9·1 answer
  • How many moles are in 8.32 x 1024 molecules of CO2.
    14·1 answer
  • A bond formed when atoms share electrons is a(n) __________.
    6·1 answer
  • You are trying to make a sugar water solution by dissolving solid sugar into liquid water. You would like to increase (speed up)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!