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Anastasy [175]
3 years ago
5

Which planetary body was opportunity designed to explore?

Chemistry
1 answer:
11111nata11111 [884]3 years ago
3 0
The rover was designed to explore A.Mars
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What is the molarity of 50.84 g of Na2CO3 dissolved in 0.400 L solution?
borishaifa [10]

Answer:

1.20 M

Explanation:

Convert grams of Na₂CO₃ to moles.  (50.84 g)/(105.99 g/mol) = 0.4797 mol

Molarity is (moles of solute)/(liters of solvent) = (0.4797 mol)/(0.400 L) = 1.20 M

4 0
3 years ago
What are substances composed of 2 or more different atoms that are united by bonds of any type?
gogolik [260]
A molecule consists of two or more atoms united by a bond


6 0
4 years ago
Due in 30 minutes<br> how is chemical activity used to separate copper from its ores
irga5000 [103]

Explanation:

You can use copper's chemical activity to extract copper from an ore. In the process of electrolysis, and electric current breaks the chemical bond that joins the metal and other elements in the compound. ... When iron ore and a source of carbon are heated together, the iron is released

7 0
3 years ago
When you apply 1000 joules of energy to 50 grams of water its temperature changes to 30 degrees . What was the initial temperatu
expeople1 [14]

Answer:

25.2°C

Explanation:

Given parameters:

Energy applied to the water  = 1000J

Mass of water  = 50g

Final temperature  = 30°C

Unknown:

Initial temperature  = ?

Solution:

To solve this problem, we use the expression below:

            H  = m c Ф

H is the energy absorbed

m is the mass

c is the specific heat capacity

Ф is the change in temperature

     1000  = 50 x 4.184 x (30  -  initial temperature )

     1000  = 209.2(30 - initial temperature)

      4.78  = 30 - initial temperature

      4.78  - 30  = - initial temperature

         Initial temperature  = 25.2°C

7 0
3 years ago
What metal will have properties most similar to those of chromium (Cr)? Why?
garri49 [273]
That element is manganese. As they are in same horizontal row (period) and are next to each other. That is why they show same properties. 

Hope this helps xox :)
5 0
4 years ago
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