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
astra-53 [7]
2 years ago
7

I’m taking a test!! Please help!!

Chemistry
2 answers:
777dan777 [17]2 years ago
8 0

Answer:

I am not really sure, but I think Fr.

Explanation:

jekas [21]2 years ago
8 0
Pretty sure Fluorine is the right one
You might be interested in
How many neutrons are in 7.00 g of 13c?
Minchanka [31]
You multiply the number of atoms by 12 to get how many electrons (since each atom has 12 electrons in it)
you multiply the number of atoms by 13 to get how many neutrons
(since each atom of this isotope has 13 neutrons in it)
5 0
3 years ago
Which color changes represent a positive reaction for the presence of starch using the iodine test?
-BARSIC- [3]
Looking at a ph level color chart, it should be moving to more acidic if it’s positive
3 0
3 years ago
Ionic bonds are formed by the attraction between two ________________.
cricket20 [7]
It would be C) atoms of the opposite charges. iconic bonds are formed by the attraction of two atoms of the opposite charge.

Hope this helps :)

can you please make this the brainiest answer it would really help me. thank you :) 
7 0
3 years ago
In a chemical change
Vsevolod [243]

Answer:

B. materials change their properties.

Explanation:

In a chemical change, materials often change their properties because a re-arrangement of atoms takes place.

A chemical change is one in which new kind of matter is formed.

It is always accompanied by energy changes.

  • Chemical changes are not reversible.
  • They lead to the production of new kinds of matter
  • It involves mass changes
  • Requires considerable amount of energy
8 0
2 years ago
Two reasons why emerging diseases are especially harmful to humans. (is science)
Aleonysh [2.5K]

Answer:

Many emerging diseases arise when infectious agents in animals are passed to humans (referred to as zoonoses). As the human population expands in number and into new geographical regions, the possibility that humans will come into close contact with animal species that are potential hosts of an infectious agent increases.

Explanation:

7 0
2 years ago
Other questions:
  • Is a electron found in a subtonic particles in a atomic nucleus
    13·1 answer
  • Isobutylene is a hydrocarbon used in the manufacture of synthetic rubber. when 0.847 g of isobutylene was subjected to combustio
    8·1 answer
  • What is the name of the ionic compound rbcl?
    12·1 answer
  • What law explains the relationships between different chemical compounds that contain only the elements carbon and oxygen?
    12·1 answer
  • The activation barrier for the hydrolysis of sucrose into glucose and fructose is 108 kJ/mol. Part A If an enzyme increases the
    13·1 answer
  • How many moles of neon (Ne) gas have a volume of 4.5L and a pressure of 2.1 atm at 302 K
    15·1 answer
  • Density = 7 g/mL <br> Volume = 10mL <br> ∙What is the Mass?
    14·1 answer
  • Explain the<br> purpose<br> of the heat exchanger in the nuclear power plant.
    8·2 answers
  • Read, now please rail me jkjkjk.................Unless
    11·2 answers
  • I + I -----&gt; I2 + 146.3 kJ Is this reaction exothermic or endothermic?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!