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
jeka94
3 years ago
15

A motorcycle travels 823 meters in 20 seconds. What is the average speed? _____ m/s

Chemistry
1 answer:
docker41 [41]3 years ago
4 0
41 meters per second
You might be interested in
Living things are classified by their character stick they have in common true or false
VashaNatasha [74]

True-  For example, woodchucks are also called "groundhogs" and "whistlepigs"; but when using the scientific name scientists know they're talking about animal.

5 0
3 years ago
Read 2 more answers
(c) ammonium carbonate + lead nitrate ? Step-by-step solution Step 1 of 3 v Step 2 of 3 v Step 3 of 3 ^ c) The ions formed in so
kenny6666 [7]

<u>Answer:</u> The net ionic equation is written below.

<u>Explanation:</u>

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of ammonium carbonate and lead nitrate is given as:

(NH_4)_2CO_3(aq.)+Pb(NO_3)_2(aq.)\rightarrow PbCO_3(s)+2NH_4NO_3(aq.)

Ionic form of the above equation follows:

2NH_4^+(aq.)+CO_3^{2-}(aq.)+Pb^{2+}(aq.)+2NO_3^-(aq.)\rightarrow PbCO_3(s)+2NH_4^+(aq.)+2NO_3^-(aq.)

As, ammonium and nitrate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

Pb^{2+}(aq.)+CO_3^{2-}(aq.)\rightarrow PbCO_3(s)

Hence, the net ionic equation is written above.

3 0
3 years ago
What should you do if you need to determine the odor of a chemical or a solution?
Cerrena [4.2K]

Answer:

Explanation:

When you are in the laboratory and take a direct sniff of the chemicals you are using, you run the risk of damaging your mucous membranes or your lungs. When it is necessary to smell chemicals in the lab, the proper technique is to cup your hand above the container and waft the air toward your face.

3 0
3 years ago
What is the charge on an electron? <br><br> -1<br> 0<br> +1<br> -2
Mama L [17]

An electron has a negative charge of one

An neutron has no charge (hence, neutral)

An proton has a positive charge of one

~

5 0
3 years ago
Read 2 more answers
Essay
Troyanec [42]

Answer:

A radionuclide is an atom that has excess nuclear energy, making it unstable. This excess energy can be used in one of three ways: emitted from the nucleus as gamma radiation; transferred to one of its electrons to release it as a conversion electron; or used to create and emit a new particle from the nucleus. Wikipedia

The existence of isotopes contradicts part of Dalton's original atomic theory because he said all atoms of a given element are identical have the same mass size and chemical properties.

6 0
2 years ago
Other questions:
  • How much potassium chlorate (KCIO3) must decompose in order to produce 150 grams of oxygen gas (O2)?
    14·1 answer
  • The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is
    10·2 answers
  • What was the name of the disease that killed nearly half the people of Europe?
    12·2 answers
  • A gas mixture consists of 4 kg of O2, 5 kg of N2, and 7 kg of CO2. Determine (a) the mass fraction of each component, (b) the mo
    10·1 answer
  • Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolat
    7·1 answer
  • If 23.7 g of Al(OH)3(s) are mixed with 29.5 g of H2SO4(s) and the reaction is run, answer the following questions:
    7·1 answer
  • What is the highest energy level of an atom with 37 electrons
    14·1 answer
  • What does a low number on the pH scale say about a solution? O A. The solution is changing, OB. The solution is an acid. O C. Th
    13·2 answers
  • Really need help on this thing plz someone... help number 2 and 3:(
    12·1 answer
  • Helium on the Moon was found to be 0.420% 2He, 2.75% 3He, and 96.83% 4He. What is the average atomic mass of helium on the Moon?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!