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
Naddik [55]
3 years ago
14

Can you guys please help me I will mark brainliest to whoever answers this right.

Chemistry
1 answer:
Sphinxa [80]3 years ago
7 0
Wants: a stove top- you don’t need it to make food but it’s more convenient.
Wants: automobile- you don’t need a car but it’s easy to go places and faster. You could use a bike instead however it’s not as convenient to some of us.

Needs: sun- we need the sun to stay warm and live and to keep earth living.
Needs:our heat- we need the heat our body provides to live and function
You might be interested in
A gas cylinder contains 2.5 atm of ne, 0.8 atm of co2, and 3.4 atm of ar. what is the total pressure in the cylinder? g
Tatiana [17]
To answer this problem, we must make assumptions for simplicity. The first assumption is that, the system only consist of these 3 gases. The second assumption is that, these gases behave ideally. Thus, from Dalton's Law of Partial Pressure, the total pressure is simply the sum of their individual partial pressures.

Total pressure = 2.5 + 0.8 + 3.4 = <em>6.7 atm</em>
6 0
3 years ago
An element is a pure substance in which there are how many kinds of atoms?
Ostrovityanka [42]

Answer:

One

Explanation:

An element is a pure substance in which there are only one kind of atom. Elements are distinct substances that cannot be split up into simpler substances.

Such substances consists of only one kind of atom. There are over a hundred known elements to date.

Generally, as a pure substance, the composition of an element is definite and they are homogenous in all parts.

8 0
3 years ago
How many unpaired electrons are present in a ground-state atom from each of the following groups?
musickatia [10]

For 7A(17) :

Electronic configuration ns^2 np^5

So, there are 5 unpaired electrons present in group 7A(17).

<h3>What are Unpaired Electrons?</h3>
  • An unpaired electron is an electron that doesn't form part of an electron pair when it occupies an atom's orbital in chemistry.
  • Each of an atom's three atomic orbitals, designated by the quantum numbers n, l, and m, has the capacity to hold a pair of two electrons with opposing spins.
  • Unpaired electrons are extremely uncommon in chemistry because an object carrying an unpaired electron is typically quite reactive. This is because the production of electron pairs, whether in the form of a chemical bond or as a lone pair, is frequently energetically advantageous.
  • They play a crucial role in describing reaction pathways even though they normally only appear momentarily during a reaction on a thing called a radical in organic chemistry.

To learn more about unpaired electrons with the given link

brainly.com/question/14356000

#SPJ4

6 0
2 years ago
The density of iron is about ___ times greater than water.<br><br> 6, 2, 8, 10, or 4
Lelechka [254]

Answer: 4 i think

Explanation:

8 0
3 years ago
Which number best describes the number of stars you would find in the galaxy?
IceJOKER [234]
D. The answer would be D.
4 0
4 years ago
Read 2 more answers
Other questions:
  • Is helium a gas, liquid or solid at room temperature
    11·1 answer
  • If Na was to form a 2 ion, from what orbital subshell would the second electron be lost?
    10·1 answer
  • What type of cryptography uses two keys instead of just one, generating both a private and a public key?
    6·1 answer
  • A container of acetylene gas (C2H2) holds 3.86mol of acetylene and has a volume of 39.2L. If there were a leak and the volume we
    11·2 answers
  • A cylinder measuring 9.7 cm wide and 12. cm high is filled with gas. The piston is pushed down with a steady force measured to b
    11·1 answer
  • The hydrogen bonding in water creates ________, a cohesive force that enables one to slightly overfill a glass with water or all
    12·1 answer
  • Please don't just take the points. I really need help. I have so many missing assignments please
    5·1 answer
  • Imagine that you meet with the team of scientists who assembled the graphs in part B. What questions would you ask the team abou
    13·2 answers
  • What is the difference between organic and non organic chemiatty?
    12·1 answer
  • Activity In this activity, you’ll draw and count atoms to understand how nitrogen and hydrogen react to make ammonia. Begin by s
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!