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
Andrei [34K]
3 years ago
8

This law relates a planet's orbital period and its average distance to the Sun.

Chemistry
1 answer:
Tanya [424]3 years ago
3 0

Answer:

These are Kepler's Laws of Planetary Motion

Explanation:

You might be interested in
Metals react with oxygen to give oxides with the general formula MxOy. What is a balanced chemical equation for the reaction of
katovenus [111]

Answer: 4Fe+3O_2\rightarrow 2Fe_2O_3

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Here iron is having an oxidation state of +3 called as Fe^{3+} cation and oxide O^{2-} is an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral Fe_2O_3.

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

2Fe+3O_2\rightarrow 2Fe_2O_3

8 0
3 years ago
Read 2 more answers
What is this what is this
monitta

Answer:Attemted Failed

Maybe try to search

In a different way like:

what is the ingredient of cake

Instead of

how to make Cake

5 0
3 years ago
When 8.0 grams of sodium hydroxide is dissolved in sufficient water to make 400. mL of solution, what is the concentration of th
nata0808 [166]

Answer:

The concentration of this sodiumhydroxide solutions is 0.50 M

Explanation:

Step 1: Data given

Mass of sodium hydroxide (NaOh) = 8.0 grams

Molar mass of sodium hydroxide = 40.0 g/mol

Volume water = 400 mL  = 0.400 L

Step 2: Calculate moles NaOH

Moles NaOH = mass NaOH / molar mass NaOH

Moles NaOH = 8.0 grams / 40.0 g/mol

Moles NaOh = 0.20 moles

Step 3: Calculate concentration of the solution

Concentration solution = moles NaOH / volume water

Concentration solution = 0.20 moles / 0.400 L

Concentration solution = 0.50 M

The concentration of this sodiumhydroxide solutions is 0.50 M

6 0
3 years ago
Which of the following is a physical change?
Wewaii [24]

Answer:

O ice melts at 0°C that is the answer

5 0
3 years ago
I NEED THIS LESS THAN 7 MINUTES IYS 15 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! What is the difference betwe
lana [24]

Answer:

Balanced equation have equal number of atoms of different elements in the side of reactants and products.

4 0
3 years ago
Read 2 more answers
Other questions:
  • The easiest way to determine whether a process is exothermic or endothermic is to note the change in temperature in a calorimete
    15·1 answer
  • Sedimentary rocks form _____.
    13·1 answer
  • penicillin. an important antibiotic (antibacterial agent), was discovered accidentally by the scottish bacteriologist alexander
    15·1 answer
  • An electromagnetic wave that has a higher frequency than ultraviolet light will have ___ than the ultraviolet light. A. Longer w
    13·1 answer
  • Density is calculated by solving for a mass divided by ______
    6·1 answer
  • How many grams are in .705 moles of Cr?
    11·2 answers
  • Consider the following reaction: 4Fe + 302 → 2Fe2O3. What mass of iron(III) oxide would
    10·1 answer
  • chemist must prepare of hydrochloric acid solution with a pH of at . He will do this in three steps: Fill a volumetric flask abo
    6·1 answer
  • A chemist prepares a solution of copper) sulfate (cuso4)by weighing out 29.9 g of copper ) sulfate into a 150 into a 150.mLvolum
    14·1 answer
  • According to kinetic molecular theory, which of the following would not be considered an ideal gas
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!