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
FinnZ [79.3K]
3 years ago
7

SCIENCE!!! HAHA X'D : Which one of the following is an element?

Chemistry
2 answers:
yan [13]3 years ago
8 0
Oxygen is the only element in the list.
KatRina [158]3 years ago
5 0

Oxygen is your answer

You might be interested in
If a sloth is traveling at its top speed of 0.067 m/s (0.15 mph), how long does it take the sloth to travel a 11.5 meter tree?
marishachu [46]
I think the answer is a: 17mins
7 0
2 years ago
Read 2 more answers
A mixture can be classified as _____ or ______​
VikaD [51]

Mixtures can be classified as <u>homogeneous </u>or <u>heterogeneous</u>.

4 0
2 years ago
Read 2 more answers
What volume does 3.82 x 1025 molecules of Cl2 occupy?
OLEGan [10]

Answer:

Explanation: a temperature of 273.15 K and a pressure of 100 kPa. When tose conditions are met, 1 mole of any ideal gas will have a volume of 22.7 L.

3 0
2 years ago
Example of POTENTIAL ENERGY: <br><br> and <br><br> Example of KINETIC ENERGY:
Degger [83]
Potential : a yoyo before it’s been released
Kinetic : skateboarding
4 0
3 years ago
Read 2 more answers
Calculate the number of atoms in 0.25 moles of manganese?
White raven [17]
<h3>Answer:</h3>

1.5 × 10²³ atoms Mn

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
<h3>Explanation:</h3>

<u>Step 1: Define</u>

0.25 mol Mn

<u>Step 2: Identify Conversions</u>

Avogadro's Number

<u>Step 3: Convert</u>

  1. Set up:                              \displaystyle 0.25 \ mol \ Mn(\frac{6.022 \cdot 10^{23} \ atoms \ Mn}{1 \ mol \ Mn})
  2. Multiply:                            \displaystyle 1.5055 \cdot 10^{23} \ atoms \ Mn

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

1.5055 × 10²³ atoms Mn ≈ 1.5 × 10²³ atoms Mn

3 0
2 years ago
Other questions:
  • How many moles of Al2O3 will be formed when 27 grams of Al reacts completely with O2?
    8·1 answer
  • Explain the relationship between high and low <br> pressure.
    9·1 answer
  • What are the reasons global warming is caused my humans and animals. Plz help 100 points
    5·2 answers
  • Plz do #4 <br> Plz, plz, plzzzzzzz!!!!!
    11·1 answer
  • The sun's energy is produced when
    5·2 answers
  • PLEASE HELP!!! I WILL GIVE BRAINLIEST TO 1ST PERSON!!!
    14·2 answers
  • What is the density of an 84.7 g sample of an unknown substance if the sample occupies 49.6cm cubed
    12·1 answer
  • Write the chemical equation for the reaction in which silver carbonate is formed
    11·1 answer
  • Nitrogen dioxide is a red-brown gas that is responsible for the color of photochemical smog. What is the volume of 1 mol of nitr
    5·1 answer
  • Describe the scale used to measure the basicity of a substance. Demonstrate how you could differentiate a weak base from a stron
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!