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
Nuetrik [128]
3 years ago
10

Extra Practice... 1) What is the speed of light?

Chemistry
1 answer:
miss Akunina [59]3 years ago
4 0

What is the speed of light?

The speed of light is 299,792,458 meters per second.

You might be interested in
A substance is found to consist of 1.900g of silver, 0.250g of nitrogen, and 0.850g of oxygen. what is the percent by mass of ox
Galina-37 [17]
The  percentage  by mass  of  oxygen  in  the  compound

find  the total  mass=(  1.900+  0250 +0.850) =  3
the  percentage  mass  mass of  oxgyen/total  mass  x100

that  is  (0.850/3)  x100=28.33%
7 0
3 years ago
Taken all together the reactions of the human body are
jasenka [17]
The reactions of the human body are exothermic
8 0
2 years ago
The pressure of a sample of helium in a 200. ml container is 2.0 atm. If the helium is compressed to a pressure of 40. atm witho
Crank

Answer:

V_2=10mL

Explanation:

Hello there!

In this case, according to the given information, it will be possible for us to solve this problem by using the Boyle's law as an inversely proportional relationship between pressure and volume:

P_2V_2=P_1V_1

In such a way, we solve for the final volume, V2, and plug in the initial volume and pressure and final pressure to obtain:

V_2=\frac{P_1V_1}{P_2} \\\\V_2=\frac{2.0atm*200.mL}{40.atm}\\\\V_2=10mL

Regards!

5 0
3 years ago
0.450 mol of aluminum hydroxide is allowed to react with 0.550 mol of sulfuric acid; the reaction which ensues is: 2Al(OH)3(s) +
Veseljchak [2.6K]

Answer:

The answer to your question is 1.1 moles of water

Explanation:

                     2Al(OH)₃  +   3H₂SO₄   ⇒   Al₂(SO₄)₃  +   6H₂O

                       0.45 mol      0.55 mol                                ?

Process

1.- Calculate the limiting reactant

Theoretical proportion

       Al(OH)₃ / H₂SO₄ = 2/3 = 0.667

Experimental proportion

       Al(OH)₃ / H₂SO₄ = 0.45 / 0.55 = 0.81

From the proportions, we conclude that the limiting reactant is H₂SO₄

2.- Calculate the moles of H₂O

                        3 moles of H₂SO₄ ----------------  6 moles of water

                        0.55 moles of H₂SO₄ -----------    x

                        x = (0.55 x 6) / 3

                        x = 3.3 / 3

                       x = 1.1 moles of water

5 0
3 years ago
What is the number placed in front of a compound to balance a chemical reaction?
stiks02 [169]

coefficient: they balance the chemical equation you have to make sure the number is as small as it can. It is also used to convert different compounds to compounds or quantities to quantities.

5 0
3 years ago
Other questions:
  • Predict the products for the reaction of burning sucrose, C12H22O11(s), with excess oxygen, O2(g)
    12·2 answers
  • How to balance an ionic equation BaCl2 + 2NH4CH3COO
    8·1 answer
  • On a periodic table, element names are represented by: A. numbers B. chemical symbols C. pictures D. matter
    8·2 answers
  • 1 mole of sulfur atoms has how much mass
    6·2 answers
  • When a gas is heated, _____.
    12·2 answers
  • Meera added blue copper sulphate crystals to some water in a beaker.
    9·1 answer
  • When determining the density of a grape, a student was not careful when putting the grape into the graduated cylinder, and some
    15·1 answer
  • PLEASE ANSWER THIS QUESTION ITS DUE IN 5 MINUTES!! THANK YOU SM IF U DO!!
    13·2 answers
  • Part B
    11·1 answer
  • 1-Bromobutane reacts with water to form 1-butanol according to the following equation.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!