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
stiks02 [169]
3 years ago
7

Which choice is an element? carbon dioxide water carbon air

Chemistry
1 answer:
olga2289 [7]3 years ago
8 0

Answer:

carbon

Explanation:

You might be interested in
Wich has more energy rolling down a hill - a bowling ball or soccer ball? Explain your answer
goldfiish [28.3K]

Answer:

Bowling ball

Explanation:

They are traveling at the same speed, but the bowling ball has more mass.  The bowling ball has more kinetic energy because more force is needed to stop the rolling bowling ball. Two balls with different masses moving at the same speed have different amounts of kinetic energy.

6 0
3 years ago
Read 2 more answers
A salt crystal has a mass 0.14mg,How many NaCl formula units does it contain?
klemol [59]
To determine the number of formula units in a sample of a compound you need to divide the number of grams by the formula mass. The formula mass of NaCl is 23 g/mol + 35.5 g/mol = 58.5 g/mol, and the number of grams of the sample is 0.14 mg * 1 g/ 1000 mg = 0.00014 g. Then the answer is 0.00014 g / 58.5 g = 2.30 * 10^ -6, which rounded to two significant figures is 2.4 * 10^ -6. So<span> the answer is 2.4 * 10^-6 or 0.0000024</span>
4 0
3 years ago
PLEASE PEOPLE I NEED HELP PLEASE IF YOU SEE THIS HELP ME ! :,(
mr Goodwill [35]

Answer: 5.5 7.5 102

Explanation: using the equation above you can get these %s

8 0
2 years ago
Does it require more energy to melt an ionic compound or dissolve it in water? It requires much more energy to melt it. It takes
Dmitrij [34]
Melting, due to the strong forces provided by lattice energy framework, would require more energy
6 0
3 years ago
Which example is most likely an inorganic compound?
Sonbull [250]
D human dna which is a molecule in cell
8 0
3 years ago
Read 2 more answers
Other questions:
  • Consider a sample of helium and a sample of neon, both at 30.0°C and 1.5 atm. Both samples have a volume of 5.0 liters. Which st
    10·1 answer
  • Henry plans to monitor the change in concentration of an acid during a chemical reaction. He wants to collect data every 0.1 sec
    7·2 answers
  • The requirements for one type of atom to substitute for another in a solid solution are:
    15·1 answer
  • Which of the following most accurately represents John Dalton’s model of the atom? A. a tiny, solid sphere with an unpredictable
    7·2 answers
  • Hey student made a model of a river in a sandbox a pile of sand represents soil and bits of rocks in the riverbed water pouring
    11·2 answers
  • Which is a characteristic of atoms?
    8·2 answers
  • The fire extinguisher is the best piece of safety equipment to put out a fire on your
    13·1 answer
  • 16. When a person looks up into the sky and
    8·1 answer
  • A warm front is heading toward Chicago. Which type of weather would one expect when it arrives?
    6·2 answers
  • What type of forces, intramolecular or intermolecular:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!