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
Kobotan [32]
3 years ago
11

What is the estimated density of the table tennis ball? Record your answer to the nearest hundredth. g/cm3 What is the estimated

density of the golf ball? Record your answer to the nearest hundreth. g/cm3
Chemistry
2 answers:
andre [41]3 years ago
8 0

Answer: Tennis ball 0.07, Golf ball 1.37

Explanation: just had this question

vampirchik [111]3 years ago
6 0

Answer:

table tennis: 0.07      Golf Ball:    1.37

Explanation:

You might be interested in
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2 Al ( s ) + 6 HCl ( aq ) ⟶ 2AlCl3 ( aq ) +
Rufina [12.5K]

Answer:

The answer to your question is  V = 19.9 L

Explanation:

Data

mass of Al = 8.60 g

volume of H₂ = ?

Balanced chemical reaction

                 2Al  +  6HCl  ⇒   2AlCl₃  +  3H₂

1.- Use proportions to calculate the mass of H₂ produced

Atomic mass of Al = 2 x 27 = 54 g

Atomic mass of H₂ = 6 x 1 = 6 g

                54 g of Al -------------------- 6 g of H₂

                  8 g  of Al -------------------  x

                  x = (8 x 6) / 54

                  x = 48 / 54

                  x = 0.89 g of H₂

2.- Calculate the volume of H₂

- Convert the H₂ to moles

                    1 g of H₂ --------------- 1 mol

                   0.89 g    ---------------- x

                    x = 0.89 moles

                    1 mol of H₂ -------------- 22.4 l

                   0.89 moles  ------------- x

                    x = (0.89 x 22.4) / 1

                   x = 19.9 L                        

6 0
3 years ago
Construct <br> an isotope has 17 protons 20 neutrons and 18 electrons
ASHA 777 [7]
Add proton + neutrons = Mass 37

Proton is same as your atomic mass= 17

If you go on the periodic table look up 17 and it will give u the letter.
4 0
3 years ago
How many mL of a stock solution of 2.00 M KNO3 are needed to prepare 100.0 mL of 0.15M KNO3? with work plz
Tatiana [17]
Using the law of dilution :

Mi x Vi =  Mf x Vf

2.00 x Vi = 0.15 x 100.0

2.00 x Vi = 15

Vi = 15 / 2.00

Vi = 7.5 mL

hope this helps!


3 0
3 years ago
Describe three signs that a chemical reaction has taken place and give an example of each sign
il63 [147K]
Color change, temperature change, bubbling, state change

green to blue, hot to cold, bubbles (lol), and liquid to gas
7 0
3 years ago
Do humans really have a third eye
Dominik [7]
Well I wouldn't quite call it a third eye but yes we have the ability to see things if we connect to our inner selves
6 0
3 years ago
Read 2 more answers
Other questions:
  • A reaction is most likely to occur when the colliding particles have proper orientation and
    6·1 answer
  • • What would you predict if you used a starch solution instead of the protein?
    12·1 answer
  • A bowling ball of 35.2kg, generates 218 kg.M/s units of momentum. What is the velocity of the bowling ball?
    9·1 answer
  • What is the pOH of a 4.8 x 10^-10 M H+ solution?
    12·2 answers
  • 2. A cylinder of compressed gas has a volume of 350 cm3 and a pressure of
    15·1 answer
  • How can the difference between a covalent bond, a polar covalent bond, and an ionic bond be categorized using the concept of ele
    6·1 answer
  • Hi, in some texts number of water molecules released during polymerization is 2n but in others 2n-1 , why?
    12·1 answer
  • It takes 83mL of a 0.45M NaOH solution to neutralize 235mL of an HCl solution.
    5·1 answer
  • QUESTION 5<br> How can you increase the kinetic energy of the particles in a substance?
    13·2 answers
  • PLZ HELP (SCIENCE) Match the following items.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!