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
lidiya [134]
3 years ago
5

Name two time measuring devices used before the the pendulum clock

Chemistry
1 answer:
BARSIC [14]3 years ago
3 0
Sundial and water clock 

You might be interested in
The burette is dirty, how does it affect the NaOH?
kodGreya [7K]
If the buret is dirty, it will react with the NaOH in the buret and will cause your concentration to be off.
5 0
3 years ago
A sample of lead has the density of 58 g/mL and a mass of 15.2g, what is the volume of the lead?
torisob [31]

Answer:

0.26 ml

Explanation:

d = m/V

=> V = m/d = 15.2/58 = 0.26 ml

4 0
1 year ago
What is not true about radiation? it travels out in all directions from its source. it is one of three methods of heat transfer.
Alika [10]
The answer is the last one (it needs a medium through which to travel) it is not true about radiation. A radiation is the emission of energy in the form of waves or particles through space or through a material medium. This includes; electromagnetic radiation, such as a radio wave, microwaves, visible light, x rays, and gamma radiation. 
6 0
3 years ago
Read 2 more answers
In 36 hours the amount of radioactive substance has reduced from 80 mg to 10 mg. What is the half-life of this isotope?
rusak2 [61]
Half-life refers to the time taken for half of the atoms in a radioactive substance to decay. Therefore in 1 half-life the 80 mg of substance will reduce to 40 mg. In another half-life it will reduce from 40 mg to 20 mg, then in a third half-life from 20 mg to 10 mg. Therefore the half-life is equal to the total time taken to decay from 80 mg to 10 mg divided by 3:
t(1/2) = 36 hours / 3 = 12 hours.
6 0
3 years ago
In a voltaic (galvanic) cell, oxidation occurs at the _____ and is where _____ in the salt bridge moves toward.
Anna11 [10]

In a voltaic (galvanic) cell, oxidation occurs at the <u>anode</u> and is where <u>anions</u> in the salt bridge moves toward.

<h3>What is Galvanic Cell ?</h3>

Galvanic Cell or Voltaic Cell is an electrochemical cell that converts the energy of spontaneous redox reactions into electrical energy. In galvanic cell oxidation occurs at the anode and reduction occurs at the cathode. The anode is positive and cathode is negative, anode attracts anions from solution in an electrolytic cell.

Thus from the above conclusion we can say that In a voltaic (galvanic) cell, oxidation occurs at the <u>anode</u> and is where <u>anions</u> in the salt bridge moves toward.

Learn more about the Galvanic Cell here: brainly.com/question/15096829

#SPJ1

4 0
2 years ago
Other questions:
  • Which of the following shows a Bronsted-Lowry acid reacting?
    6·2 answers
  • Which ions are spectator ions in the formation of a precipitate of agcl via combining aqueous solutions of cocl2 and agno3?
    15·1 answer
  • how do the differences in the polyatomic ions po3^3- and po4^3- help you determine whether each ends in -ite or -ate
    10·2 answers
  • Which of the following is not an effect of acid rain?
    8·2 answers
  • Chemicals that help chemical reactions occur at faster rates in living organisms are known as _______.
    10·2 answers
  • Hydrogen reacts with oxygen to form a compound called: a. Oxidation b. Oxide c. Metal d. None of the above
    7·2 answers
  • What happens to the particles in a berry sauce mixture as it boils?
    8·1 answer
  • PLEASE HELP HELP HELP
    7·1 answer
  • The formula of methane is CH4. The symbols for the two elements in methane are C and H. Give the names of these two elements.
    10·1 answer
  • Need help answering these questions. Please show all work. Thank you so much.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!