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
Alja [10]
3 years ago
6

How close does Venus get to earth

Chemistry
1 answer:
Sergio [31]3 years ago
4 0
<span>261 million kilometers</span>
You might be interested in
Which of the following statements about the Earth’s atmosphere is true?
maksim [4K]
Carbon dioxide levels<span> in the </span>atmosphere<span> by 2050 are predicted to be about double what they were before the. Industrial Revolution. ... 1% or 2% per </span>decade<span>, consistent with a warming </span>atmosphere<span>. .... Species are not yet responding to climate change because average temperatures </span>have<span> only </span>increasedabout 0.8°C<span> globally


can i get brainlest


</span>
8 0
3 years ago
What is the molarity of a solution containing 0.325 moles of solute in 250 ml of solution?
satela [25.4K]
Not 100%, but I think it would be 0.0013 because the equation for Molarity is Moles of solute(Mol)/ Liters of solution(L)
7 0
3 years ago
What is the empirical formula for CaCo3?*
GalinKa [24]

This problem is requiring the empirical formula for CaCO₃, which is its molecular formula, and turns out to be equal, this is A. CaCO3 according to the following:

<h3>Empirical formulas:</h3><h3 />

In chemistry, molecular formulas show both the actual type and number of atoms in a chemical compound, based on the elements across the periodic table and the subscripts standing for the number of atoms in the compound.

However, the empirical formula is a reduced expression of the molecular one, which shows the minimum number of atoms in a compound after simplifying to the smallest whole numbers.

In such a way, since the given compound is CaCO₃ and both Ca and C have a one as their subscript, it is not possible to simplify any further and therefore the empirical formula equals the molecular one this time, making the answer to be A. CaCO3.

Learn more about empirical formulas: brainly.com/question/1247523

5 0
2 years ago
3. At the end of a warm summer day, imagine you are jumping from the 80°F air into an
djyliett [7]

Answer:

  • <u>1. Since the temperature of your body is higher than the temperature of the air and of the water, heat will flow from your body to the air and pool.</u>

<u></u>

  • <u>2. The pool feels cooler than air because the water can absorb heat energy faster than the air, due to liquids are better conductors than gases.</u>

<u></u>

Explanation:

Heat always flows from warmer substances to colder ones.

The normal body temperature is 98ºF. Therefore, the heat will flow from your body to the air and pool, which are at a lower temperature of 80ºF. In both cases, you will lose thermal energy and the external parts of your body will cool down.

The difference between both cases is in the heat conduction capacity of both air and water.

Liquids (and solids) are better <em>thermal conductors </em>than gases because the conduction of heat occurs as result of the direct contact between the particles of matter: the atoms or molecules in hot matter vibrate faster than their neighbors and transmit them kinetic energy by direct contact.

Therefore, the liquid water in the swimming pool, at the same temperature than the air, will be able to absorb more heat in the same time from the body.

In conclusion, the body will cool down faster in water than in air which is why the pool feels cooler than air.

8 0
3 years ago
Consider the following reversible reaction.
dmitriy555 [2]

Answer:

Keq = [CO₂]/[O₂]

Explanation:

Step 1: Write the balanced equation for the reaction at equilibrium

C(s) + O₂(g) ⇄ CO₂(g)

Step 2: Write the expression for the equilibrium constant (Keq)

The equilibrium constant is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. It only includes gases and aqueous species. The equilibrium constant for the given system is:

Keq = [CO₂]/[O₂]

6 0
2 years ago
Read 2 more answers
Other questions:
  • In water, HNO3 produces H+ ions. Which is the name for HNO3 in an aqueous solution?
    10·2 answers
  • What elements are being fused in a main sequence star?
    6·1 answer
  • A substance that speeds up the rate of a chemical reaction is called
    11·2 answers
  • Water is classified as an inorganic compound because it
    7·2 answers
  • Gold’s natural state has a definite shape and a definite volume. What is gold’s natural state
    5·1 answer
  • What is the mass in grams of 7.5 x 10^15 atoms of nickel, Ni?
    7·1 answer
  • Nine and ten im stuck on them
    11·1 answer
  • 5. Why did you categorize the reactions the way you did? What do your physical reactions have in common? What do your chemical r
    5·1 answer
  • A breeder reactor is one type of nuclear reactor. In a breeder reactor, uranium-238 is transformed in a series of nuclear reacti
    5·1 answer
  • Which energy source has been developed and improved by chemists?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!