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
german
3 years ago
15

How may sun are in earth

Chemistry
1 answer:
sashaice [31]3 years ago
6 0
Huh ?!?!???...............
You might be interested in
Write the reaction from the word equation and then balence the equation
Mars2501 [29]
<h3>Answer:</h3>

Ni + Pb(NO₃)₂ → Ni(NO₃)₃ + Pb

<h3>Explanation:</h3>

We are required to write a balanced equation from the word equation;

  • Nickel reacts with lead nitrate (II) to produce nickel(III) nitrate and lead
  • The equation will be written by writing the symbols of the reactants and products.

That is;

Ni + Pb(NO₃)₂ → Ni(NO₃)₃ + Pb

We then balance the equation;

  • To balance the equation, we put appropriate coefficients on reactants and products, so that the number of atoms of each element is equal on both sides of the equation.
  • Thus, the balanced equation will be;

2Ni + 3Pb(NO₃)₂ → 2Ni(NO₃)₃ + 3Pb

4 0
2 years ago
A chemist prepares a solution of calcium bromide CaBr2 by measuring out 4.81μmol of calcium bromide into a 50.mL volumetric flas
Mariana [72]

Answer:

The concentration of the CaBr2 solution is 96 µmol/L

Explanation:

<u>Step 1:</u> Data given

Moles of Calciumbromide (CaBr2) = 4.81 µmol

Volume of the flask = 50.0 mL = 0.05 L

<u>Step 2:</u> Calculate the concentration of Calciumbromide

Concentration CaBr2 = moles CaBr2 / volume

Concentration CaBr2 = 4.81 µmol / 0.05 L

Concentration CaBr2 = 96.2 µmol /L = 96.2 µM

The concentration of the CaBr2 solution is 96 µmol/L

4 0
3 years ago
What best explains the type of energy present in the vibrating atoms of a substance
luda_lava [24]
The type of energy present in the vibrating atoms of a substance is a thermal energy and it is a kinetic type of energy. It is associated with movement within the crystal lattice of substance. ... Eventually, it can lead to motion of the atoms which is a form of kinetic energy.
7 0
3 years ago
Calcium carbide reacts with water to produce acetylene gas according to the following equation: CaC2(s) + 2H2O(l)C2H2(g) + Ca(OH
poizon [28]

Answer:

33.7

Explanation:

i just know i had a question on it'

7 0
3 years ago
How is humility related to air pressure
Gnom [1K]
Humid air has higher pressure because of the heaviness of water humid air is lighter so it has lower pressure.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Add electron dots and charges as necessary to show the reaction of potassium and bromine to form an ionic compound
    6·2 answers
  • 150.0 grams of an isotope with a half-life of 36.0 hours is present at time zero. How long will it take
    12·1 answer
  • How many moles of gas are contained in a 30.0 L tube with a temperature of 300. K and pressure at 200. atm ?
    11·1 answer
  • 137 lbs = how much ounces
    5·2 answers
  • How many moles are in 17.0 grams of H2O2?
    8·2 answers
  • Okay this is not school related but how do you not fall for some one so hard .
    13·1 answer
  • What is the diet of sloth bears ?​
    8·2 answers
  • Itssssssssss scienceeeeeee
    10·1 answer
  • In which of the three states of matter are the particles moving at the greatest speed?
    8·1 answer
  • Reasons and how we arrange elements according to their positions in the electrochemical series​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!