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
frozen [14]
3 years ago
13

Mars is known as the ____ planet. A) Blue B) Gaseous C) Red D) Sandy

Chemistry
1 answer:
Leni [432]3 years ago
5 0

Answer:

Of course it's C

Red planet

Explanation:

It is because the soil on Mars is rich of Fe (Iron).

That makes the soil look red.

Even on our planet we have such this places like hormuz island in Iran.

You might be interested in
If element X has 83 protons, how many electrons does it have? ______ electrons
Zolol [24]
The element has 83 electrons
5 0
3 years ago
What is the molality of a solution containing 10.0 G of NA2 S04 and 1000.0 G of water
galina1969 [7]

Explanation:

1 literThe total of water is equal to 1000.0 g of water

we need to find the molality of a solution containing 10.0 g of dissolved in  Na₂S0₄1000.0 g of water

1. For that find the molar mass

Na:  2 x 22.99= 45.98

S:  32.07

O:  4 x 16= 64

The total molar mass is 142.05

We have to find the number of moles, y

To find the number of moles divide 10.0g by 142.05 g/mol.

So the number of moles is 0.0704 moles.

For the molarity, you need the number of moles divided by the volume. So, 0.0704 mol/1 L.

The molarity would end up being 0.0704 M

The molality of a solution containing 10.0 g of Na2SO4 dissolved in 1000.0 g of water is  0.0704 Mliter

7 0
2 years ago
What are the basic building blocks of matter?
Naddik [55]
Elements because elements make up atoms which make up everything
8 0
3 years ago
Read 2 more answers
0.28gram of NH3 on decomposition gave 0.25gram of nitrogen and hydrogen. Find the volume of hydrogen evolved at Ntp. (2gram hydr
hodyreva [135]

The volume of H₂ evolved at NTP=0.336 L

<h3>Further explanation</h3>

Reaction

Decomposition of NH₃

2NH₃ ⇒ N₂ + 3H₂

conservation mass : mass reactants=mass product

0.28 NH₃= 0.25 N₂ + 0.03 H₂

2 g H₂ = 22.4 L

so for 0.03 g :

\tt \dfrac{0.03}{2}\times 22.4=0.336

7 0
3 years ago
Which reaction below represents a balanced, double replacement chemical reaction? A) C2H5OH + 3O2 → 2CO2 + 3H2O B) Rb2O + Cu(C2H
guajiro [1.7K]
Option B. <span>Rb2O + Cu(C2H3O2)2 → 2RbC2H3O2 + CuO is the correct answer. HOPE IT HELPS</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the percentage concentration by mass of a solution that contains 0.098 kg of H2SO4 in 500.0 g of H2O?
    14·2 answers
  • According to the kinetic molecular theory, which statement describes the particles in a sample of an ideal gas?
    7·2 answers
  • What is the similarity between chalk, wood, candle and cotton?
    10·1 answer
  • A flexible container is put in a deep freeze. Its original volume is 3.00 m3 at 25.0°C. After the container cools, it has shrunk
    13·2 answers
  • When a sky diver jumps out of a plane, the speed at which he or she falls to the ground continues to increase. What force is res
    14·2 answers
  • Refer to the example about diatomic gases A and B in the text to do problems 19 - 27. How many grams in 3 moles of A2?
    7·2 answers
  • Bunyi pancasila, sila ke lima​
    10·1 answer
  • 80 grams of water releases 2550 joules of heat. What is the temperature change of the water? Heat capacity of water is 4.2 J/g°C
    14·1 answer
  • 3. If you needed to make 100 mL of a 0.2 M fruit drink solution from the 1.0 M fruit drink solution, how would you do it
    8·1 answer
  • What happens to the atomic radius when an electron is gained?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!