Chemistry High School

Explain why the elements in group 7 have 7
valence electrons.

Answers

Answer 1

Answer:

The periodic table was made that way by the scientists who created it

Explanation:

to make things easier for the users.

Related Questions

Which group in the food chain uses the energy of the sun to create its own food A consumers B predators C producers D prey

Answers

Answer:

C producers

Explanation:

All food chains start with energy from the sun. This energy is captured by plants. Thus the living part of a food chain always starts with plant life and ends with an animal. Plants are called producers because they are able to use light energy from the sun to produce food (sugar) from carbon dioxide and water.

Can somebody sort these from non-metals to metals?
Sonorous, low melting point, high density, brittle, dull, malleable, basic oxide

Answers

Sonorous- metal
Low melting point- nonmetal
High density- metal
Brittle-metal
Dull-nonmetal
Malleable-metal
Basic oxide-metal

Correct me is I’m wrong :)

How many atoms are in 100g H2O ?

Answers

Answer:11

explain

: cause i think it is

help please asap. chem sucks

Answers

I'm assuming that C is carbon.

[tex]4.590 \: mol \: c \times \frac{12.01 \:g \: c}{1 \: mol \: c} [/tex]

55.1259 g of C

please answer fast! Which of the following statements are false?
A: In a chemical change, atoms are rearranged to make new compounds.
B: The same element is present before and after a chemical change.
C: A physical change does not produce an entirely new substance.
D: A chemical property can be observed without changing the identity of the substance.



Answers

I believe it is C.

Hope this helps!

advantages of solar energy

Answers

renewable energy source
reduces electric bills
low maintenance costs
reduced needs for fossil fuels and foreign oils
Another one is Electricity use
Other Questions
Read the section "Song Was Composed In 1899.Which selection from this section supports the conclusion that Lift Every Voice and Sing became popular quickly?A"Lift Every Voice and Sing" was composed as a poem in 1899. Novelist, poet and civil rights leader James Weldon Johnson wrote it.BWeldon Johnson's students were the first to perform the song. It was part of a celebration of Lincoln's birthday in 1900.CPeople kept singing the song, Johnson said. "Within 20 years it was being sung over the South and in some other parts of the country," he said.DThe song became known as the "Negro national anthem." "Negro" is a dated term used to describe a person of Black African descent.Someone help me What is the M simplify and find each side angles are 45 45 90!will mark brainiest! A square rug has an area of 121 ft?. Write the side length as a square root. Then decide if the sidelength is a rational number. HELP ASAP I WILL GIVE 200 POINT TO WHOEVER GET RIGHT The price of Philip's favorite candy has been reduced by 15 per piece. Philip buys 14 pieces and spends $3.22. What is the regular price of each piece of candy? Enter your answer in the box. What is the distance between the points (4, -8) and (10,8)? How to study for a chemistry exam? PLEASE HELP. VERY URGENTQUESTION IS BELOW Help me with this problem Help Me! I cant do this question and I am so confused! Use the map to answer the question below.Niagara FaLake EneThe Erie Canal was an important achievementbecauseo it allowed goods to be shipped more quicklyfrom the Great Lakes to New York City.it allowed goods to cross Niagara Falls for thefirst time.0 it increased transportation costs, making thecanal owners and railroad companieswealthier.DONE Aincludes a set of beliefs and customs at the heart of a society which statement is true about the relation between a monopoly and it's competition in a market? Help thank you Xxxxx 10 In 0.5 seconds, a projectile goes from 0 to 300 m/s. What is the acceleration of the projectile? Help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz with these problems I WILL PIC BRAINLIEST How is the art of orgami useful in science and technology? SOMEONE PLEASE HELP ME OUT. Find the measure of the numbered angles in each rhombus Find the slope of the line graphed below True or False: A function must have a different output for each input. A True B False