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
Vitek1552 [10]
3 years ago
5

A ball has a mass of 2.0 kg and travels a distance of 24 meters in 10 seconds what is the Velocity

Chemistry
1 answer:
Amanda [17]3 years ago
8 0
2.4 meters per second
You might be interested in
A solution is prepared by mixing 25.0 g H2O and 25.0 g C2H5OH. Determine the mole fractions of each substance.
Veronika [31]

Answer:

Mole fraction H₂O → 0.72

Mole fraction C₂H₅OH → 0.28

Explanation:

By the mass of the two elements in the solution, we determine the moles of each:

25 g . 1 mol/ 18g = 1.39 moles of water (solute)

25 g . 1 mol / 46 g = 0.543 moles of ethanol (solvent)

Mole fraction solute = Moles of solute / Total moles

Mole fraction solvent = Moles of solvent / Total moles

Total moles = Moles of solute + Moles of solvent

1.39 moles of solute + 0.543 moles of solvent = 1.933 moles → Total moles

Mole fraction H₂O = 1.39 / 1.933 → 0.72

Mole fraction C₂H₅OH= 0.543 / 1.933 → 0.28

Remember that sum of mole fractions = 1

8 0
3 years ago
Read 2 more answers
What do you think<br> about the Civil Rights<br> Movement?
dimaraw [331]
I don’t care about it tbh like I don’t even care about that stuff but the answer is 29272728
5 0
2 years ago
How many moles in 4.93 x 10E23 atoms of silver?
leva [86]
<h3>Answer:</h3>

0.819 mol Ag

<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> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

4.93 × 10²³ atoms Ag

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

Avogadro's Number

<u>Step 3: Convert</u>

  1. Set up:                              \displaystyle 4.93 \cdot 10^{23} \ atoms \ Ag(\frac{1 \ mol \ Ag}{6.022 \cdot 10^{23} \ atoms \ Ag})
  2. Divide:                              \displaystyle 0.818665 \ mol \ Ag

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

0.818665 mol Ag ≈ 0.819 mol Ag

8 0
2 years ago
Meet /svc-jgyu-fii<br>join​
arsen [322]

Answer:

what are we doing there???

bye, have a nice day!

5 0
3 years ago
What is common to all elements in the same group on the periodic table? Their properties are very different.
Mrac [35]
Hello,

<span>B.They have the same number of valence electrons. </span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • He partial pressure of oxygen gas in our atmosphere is 0.21 atm. this is the partial pressure at which human lungs have evolved
    12·1 answer
  • Define ductile.........?​
    8·2 answers
  • What are the physical properties of the element lithium?
    9·1 answer
  • If 6.4 miles of Fe react with excess O2, how many miles of Fe2O3 can be formed? 4 Fe + 3 O2 -&gt; 2 Fe2O3
    5·1 answer
  • The density of gold is 19.3 g/cm3. What is the volume of a 575 gram bar of pure gold?
    9·2 answers
  • Here is the reaction of carbamic acid and ammonia to form an amide and water. There is a scheme of a reversible reaction where c
    9·1 answer
  • Christine sets up an experiment to find out if the amount of fertilizer added to soil affect how many strawberries grow on a str
    11·1 answer
  • How many coppers of each atom in the products
    13·1 answer
  • If you burn a citronella candle near your picnic will it keep mosquitoes away
    12·2 answers
  • You have 30mL of hot cocoa, but it’s way too sweet. You add hot water until there’s 70mL of hot cocoa and determine that the fin
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!