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
Dmitry [639]
3 years ago
6

How many halogens are in the period 3 of the periodic table

Chemistry
2 answers:
PilotLPTM [1.2K]3 years ago
8 0

Halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).

I hope this helps you.

Natasha_Volkova [10]3 years ago
8 0

Answer: 17

Explanation:

You might be interested in
Help me please someone help me I’ve been here for hours
mash [69]

Answer:

Eukarya- Multicellar and unicellar

Explanation:

Fugi- Multicellar

Protista- unicellar

eubacteria- unicellar and have no nucleus

Eukarya is the only option, and that is because Eukarya is both! It contains a nucleus, and a membrane making it the only one that fits into the incomplete graphic! Hope this helps! (I noticed you were waiting for a while so I came to help! <3)

7 0
3 years ago
What is occurring when reactants are mixed and heated and liquid collects in the sidearm of the apparatus
olga55 [171]

When reactants are mixed and heated and liquid collects in the sidearm of the apparatus, a chemical reaction is occurring.

<h3>What is a chemical reaction?</h3>

A chemical reaction is said to occur when reactants are combined to form products. We must note that the formation of products is evidenced by;

  • Appearance of a liquid
  • Appearance of a gas
  • Appearance of a solid

Hence,  when reactants are mixed and heated and liquid collects in the sidearm of the apparatus, a chemical reaction is occurring.

Learn more about chemical reaction:brainly.com/question/22817140

#SPJ1

4 0
2 years ago
Which best explains how photosynthesis is helpful to humans? It reduces the amount of harmful rays released by the sun. It incre
masya89 [10]

Answer:I believe that the answer is c

Explanation: photosynthesis gives us oxygen to breath therefore it is helpful to humans

8 0
3 years ago
Read 2 more answers
In a classroom which comparison would a teacher most likely use for describing a mole
irina [24]
Mole - one of the most important concepts in chemistry - is a kind of link to go from the microworld of atoms and molecules in a normal macrocosm grams and kilograms.
In chemistry often have to consider large numbers of atoms and molecules. For fast and efficient calculation made using the weighing method. But it is necessary to know the weight of individual atoms and molecules. In order to identify the molecular weight must be added the weight of all atoms in the compound.
3 0
3 years ago
Cora, an electrician, wraps a copper wire with a thick plastic coating. What is she most likely trying to do? keep the electric
Alekssandra [29.7K]

Answer: keep a current from passing out of the wire

Explanation: plastic is an insulator and will not conduct electricity

3 0
3 years ago
Read 2 more answers
Other questions:
  • The ionic charge of an element in Group 6A is 2–.
    12·1 answer
  • If 200 ml of 0.15 M propionic acid (PA) is added to 300 ml of 0.02 M NaOH, what is the resulting pH of the solution? Round the a
    7·1 answer
  • Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of water is produced by the reaction of
    15·1 answer
  • How does weathering change rocks and minerals
    6·1 answer
  • What monomer is polymerized to make acrylate? What is the chemical name for this popular polymer?
    11·2 answers
  • Someone help me to these please i dont have much time
    7·2 answers
  • There is a gas pressure in a container that is 123kPa what is the pressure in atmospheres ?
    15·1 answer
  • For many purposes we can treat propane (CH) as an ideal gas at temperatures above its boiling point of - 42°C. Suppose the tempe
    9·1 answer
  • How do you know that some substances in coffee beans are soluble?
    9·1 answer
  • How to draw ethyl pentanoate?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!