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
Studentka2010 [4]
2 years ago
11

How many of the planets have an orbital period of less than one Earth year?

Chemistry
1 answer:
GrogVix [38]2 years ago
8 0

Since orbital period depends on how far you are from the sun, planets closer to the sun have a orbital period less than one earth year.

These planets are Mercury and Venus

You might be interested in
in the process of electricity, what flows through the wires?A) protons B)neutronsC)electronsD)positrons
gizmo_the_mogwai [7]

Electrons is your answer

8 0
3 years ago
Given the following unbalanced equation:
Lorico [155]
<h3>Answer:</h3>

8.01 mol MgO

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Moles
  • Compounds

<u>Stoichiometry</u>

  • Using Dimensional Analysis
  • Analyzing Reactions RxN
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Unbalanced] Mg + O₂ → MgO

[RxN - Balanced] 2Mg + O₂ → 2MgO

[Given] 8.01 moles Mg

[Solve] moles MgO

<u>Step 2: Identify Conversions</u>

[RxN] 2 mol Mg → 2 mol MgO

<u>Step 3: Stoich</u>

  1. [DA] Set up:                                                                                                       \displaystyle 8.01 \ mol \ Mg(\frac{2 \ mol \ MgO}{2 \ mol \ Mg})
  2. [DA] Multiply/Divide [Cancel out units]:                                                          \displaystyle 8.01 \ mol \ MgO
3 0
2 years ago
What is the term for a solid that forms when two solutions are mixed?
Inessa [10]

Option D

A precipitate is the term for a solid that forms when two solutions are mixed

<u>Explanation:</u>

A solid set from a couple of solutions is termed a precipitate. A precipitate is an unsolved solid that makes when a pair of solutions are fused and react chemically. Unsolvable means that the solid will not melt.  When the effect transpires in a liquid solution, the solid developed is denominated the 'precipitate'.

The substance that generates the solid to make is termed the 'precipitant'. Seldom the development of a precipitate symbolizes the existence of a chemical reaction. Precipitation may additionally transpire immediately from a supersaturated solution.

3 0
3 years ago
Read 2 more answers
Which of the following decomposition reactions is/are correct?
Valentin [98]
<span>The generalized reaction for chemical decomposition is: AB → A + B

NaOH is sodium hydroxide. When sodium and water is combined it makes sodium hydroxide and hydrogen

When sodium hydroxide decomposes under thermal decomposition, it breaks down into sodium oxide and water.

Thus, </span><span>C) 2NaOH Na2O + H2O</span>
4 0
2 years ago
All of the following equations are statements of the ideal gas law except
evablogger [386]

Answer:

  • The first equation, <em>a. PV = nRT</em>, <u>is not</u> <em>a valid statement of the ideal gas law.</em>

Explanation:

The basic expression for the<em> ideal gas law</em> is:

  • pV=nRT      .......... [Equation 1]

Where:

  • n is the number of moles of the gas
  • V is the volume occupied by the gas
  • p is the pressure exerted by the gas molecules
  • T is the temperature in absolute scale (Kelvin)
  • R is the Universal gas constant (0.0821 atm-liter /K-mol or the equivalents in other units)

You can perform different algebraic operations to obtain equivalent equations:

<u>Choice b) Divide equation 1 by T and you get</u>:

  • pV / T = nR, which is the choice b. from your list.

<u>Choice c) Divide equation 1 by n × V and you get</u>:

  • p/n = RT / V, which is the choice c. from your list.

<u>Choice d) Divide equation 1  n × T and you get</u>:

  • pV / (nT) = R, which is the choice d. from your list.

The choice a. p = nRTV states that p and V are in direct relation, when the ideal gas law states that p and V are inversely related, so that equation is wrong.

<u>Conclusion: </u>the choice a, p = nRTV, is not a statement of the ideal gas law.

3 0
2 years ago
Other questions:
  • When determining rock composition, describe the test that can be used to determine whether it contains the mineral calcite.
    12·2 answers
  • For many purposes we can treat ammonia (NH) as an ideal gas at temperatures above its boiling point of -33.C. Suppose the temper
    15·1 answer
  • What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?
    9·1 answer
  • radiation is the transfer of energy through A: thermal energy B: visible light or C: electromagnetic waves??
    11·1 answer
  • A scientist has isolated a fatty acid that has 26 carbons bonded together. All of the carbon atoms in the chain are connected by
    7·1 answer
  • Identify the compound with the lowest dipole moment. Identify the compound with the lowest dipole moment. CH3CH2CH3 CH3OCH3 CH3C
    12·1 answer
  • Can someone please help me
    6·1 answer
  • How many moles of NO₂ would be required to produce 5.73 moles of HNO₃ in the presence of excess water in the following chemical
    10·1 answer
  • I need four reasons why ph is important!!!
    9·2 answers
  • At 2525 °c, what is the hydroxide ion concentration, [oh−][oh−] , in an aqueous solution with a hydrogen ion concentration of [h
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!