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
m_a_m_a [10]
3 years ago
7

If the initial velocity of the car in the previous problem (the car accelerates at 5.00 km/hr/s for 3.50 sec) is 22.6 km/hr, wha

t is the final velocity of the car?
Chemistry
2 answers:
MatroZZZ [7]3 years ago
7 0
40.10 km/hr I believe.
disa [49]3 years ago
3 0

<em>The answer is 40.1 km/hr</em>


You might be interested in
ASAP
nevsk [136]

I’m pretty sure it’s the second answer B

5 0
3 years ago
A piece of solid Fe metal is put into an aqueous solution of Cu(NO3)2. Write the net ionic equation for any single-replacement r
Vinvika [58]

Answer:

Fe(s) + Cu^2+(aq) ---> Fe^2+(aq) + Cu(s)

Explanation:

The ionic equation shows the actual reaction that took place. It excludes the spectator ions. Spectator ions are ions that do not really participate in the reaction even though they are present in the system.

For the reaction between iron and copper II nitrate, the molecular reaction equation is;

Fe(s) + Cu(NO3)2(aq)----> Fe(NO3)2(aq) +Cu(s)

Ionically;

Fe(s) + Cu^2+(aq) ---> Fe^2+(aq) + Cu(s)

8 0
3 years ago
Stronger acids are those that —
Harlamova29_29 [7]
F. hold on to their protons more strongly
7 0
3 years ago
write a correct and complete nuclear equation for the alpha decay of a parent atom having 102 protons and 167 neutrons useing th
scZoUnD [109]
Alpha partical is a He nucleus. When decaying alpha particle mass is reduced by 4 and atomic number is reduced by 2.

The actual element which has 102 protons is No (Nobelium). 
Since it has 167 neutrons, the mass = protons + neutrons = 102 + 167 = 269

after an alpha decay, the new element formed has 100 protons which is Fm ( Fermium)

the alpha decaying equation is,

    ₁₀₂²⁶⁹No → ₁₀₀²⁶⁵Fm + ₂⁴α + heat

the total mass and the atomic number( numbe rof protons) must be equal in both sides.




5 0
3 years ago
Which chemical equation shows that the total mass during a chemical reaction stays the same?
k0ka [10]

Answer:

  • Option A) <u><em>Mg + Cl₂ → MgCl₂</em></u>

Explanation:

The law of conservation of mass is guaranteed in a chemical equation. Since the mass of the atoms do not change, that means that the number of each kind of atoms in the reactant side is equal to the number of atoms of the same kind in the product side.

The first equation is:

<em><u>A) Mg + Cl₂ → MgCl₂</u></em>

<u />

Number of atoms:

        atom      Reactant side        Product side

          Mg                1                              1

           Cl                 2                             2

Therefore, the table displays that there are the same number of atoms of each kind on both sides, showing that<em> the total mass during the chemical reaction stays the same.</em>

<u />

<em><u>B) NaOH + MgCl₂ → NaCl + MgOH</u></em>

This equation displays 2 atoms of Cl on the left side and 1 atom of Cl on the right side; thus, it is not showing that the total mass stays the same during the chemical reaction.

<em />

<u><em>C) 2Na + 2H₂O → NaOH + H₂</em></u>

Neither the sodium, nor oxygen, nor hydrogen atoms are balanced. Thus, this does not show that the total mass stays the same.

<u><em /></u>

<u><em>D) H₂O + O₂ → H₂O</em></u>

The reactant side contains 3 oxygen atoms and the product side contains 1 atoms of oxygen; thus, this is not balanced: it does not show that the total mass stays de same during the chemical reaction.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Which type of change is represented?
    14·1 answer
  • What is the molar mass of H2O?
    7·2 answers
  • Which graph best demonstrates the general relationship between mass and temperature, similar to the trend of thermal energy abso
    14·2 answers
  • HCl +KOH ---&gt; KCl + H20
    11·1 answer
  • There are many lewis structures you could draw for sulfuric acid, h2so4 (each h is bonded to an o). part a what lewis structure(
    6·2 answers
  • (ZOOM IN TO SEE )plzzzz
    6·1 answer
  • Identify all the examples that support the Law of Conservation of Mass through chemical changes.
    8·2 answers
  • HELP ! DUE IN 41 MINUTES!<br> WILL GIVE BRAINLISIT!!!!!!
    6·1 answer
  • Why do you see a flash of lightning before you hear the thunder during a storm?
    8·1 answer
  • Calcium carbide, CaC2, is manufactured by reducing lime with carbon at high temperature. (The carbide is used in turn to make ac
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!