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
12345 [234]
3 years ago
8

List three examples of observation of Earth by remote-sensing satellites

Chemistry
1 answer:
Alex73 [517]3 years ago
4 0
Landsat - (USA)
Spot - (France)
Radarsat (Canada)
You might be interested in
Here is the electron configuration for Magnesium. How many total electrons are in the 2nd energy level?
balandron [24]

Answer:

8 electrons

Explanation:

Magnesium is present on group 2.

It has 2 valence electrons.

Electronic configuration of magnesium:

Mg₁₂ = 1s² 2s² 2p⁶ 3s²

1st energy level contain 2 electrons.(1s²)

2nd energy  level contain 8 electrons. (2s² 2p⁶)

3rd energy level contain 2 electrons. (3s²)

3rs energy level of magnesium is called valence shell. It contain two valance electrons. Magnesium can easily donate its two valance electrons and get stable electronic configuration.

It react with halogens and form salt. For example,

Mg + Cl₂   →   MgCl₂

7 0
2 years ago
72.0 grams of water how many miles of sodium with react with it?
Flura [38]

Answer:

\large \boxed{\text{8.00 mol}}

Explanation:

We will need a balanced chemical equation with masses, moles, and molar masses.

1. Gather all the information in one place:

Mᵣ:                  18.02

            2Na + H₂O ⟶ 2NaOH + H₂

m/g:                72.0  

2. Moles of H₂O

\text{Moles of H$_{2}$O} = \text{72.0 g H$_{2}$O} \times \dfrac{\text{1 mol H$_{2}$O}}{\text{18.02 g  H$_{2}$O}} = \text{3.996 mol H$_{2}$O}

3. Moles of Na

The molar ratio is 2 mol Na/1 mol H₂O.

\text{Moles of Na} =  \text{3.996 mol H$_{2}$O} \times \dfrac{\text{2 mol Na}}{\text{1 mol H$_{2}$O}} = \textbf{8.00 mol Na}\\\\\text{The water will react with $\large \boxed{\textbf{ 8.00 mol}}$ of Na}

7 0
3 years ago
What are three things that living things need to live
Grace [21]
Food shelter oxygen
8 0
3 years ago
Read 2 more answers
As the mass of a sample increases, the number of moles present in the sample
vivado [14]

Answer:

increases

Explanation:

4 0
3 years ago
Read 2 more answers
HELP a #QUEEN out pls??
Anastaziya [24]

Answer:

what the acctual fhuck typa chinese algorithim is dis, youve got me bamboozled frffr

Explanation:

jk jk.........

__5___SiO2 + ___2___CaC2 → __5___Si + ____2___CaO + __4___CO2

4 0
2 years ago
Other questions:
  • help me balance & find how many grams of water would be produced if 20.0 liters of O2 gas were burned at a temperature of -1
    14·1 answer
  • What is the answer??
    8·2 answers
  • Aqueous solutions of isopropyl alcohol are commonly sold as rubbing alcohol. The boiling point of isopropyl alcohol is 82.4 °C.
    9·1 answer
  • What happens to molecules and atoms in changes of state of matter?
    13·1 answer
  • What is the mass of 11.5 liters of CL2 gas at STP?
    11·1 answer
  • You crumple a piece of paper in your hands. Not all of the kinetic energy from your hands is used to crumple the paper. Where do
    8·1 answer
  • Is sand an element or a compound?
    12·1 answer
  • Find the co valance of c in C2S2 ​
    8·1 answer
  • Okay, no.. its not funny... who names their child happiness...
    5·2 answers
  • What is it called when an enzyme changes shape
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!