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4 years ago

The oceanic crust is made primarily from this type of rock.

Chemistry

2 answers:

Thepotemich [5.8K]4 years ago

8 0

Im pretty sure its basalt

Inessa05 [86]4 years ago

8 0

Answer:

Igneous rock basalt.

Explanation:

The ocean crust is made mostly of igneous rock basalt, which comes from lava and the movement of tectonic plates.

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2. Why did Portugal receive Brazil?

Studentka2010 [4]

Answer:

Brazil and Portugal share a privileged relationship,[2] as evidenced in aligned political and diplomatic coordination, as well as economic, social, cultural, legal, technical and scientific cooperation.[3]

According to a 2011 BBC poll, 76% of Portuguese people view Brazil's influence positively, with 8% viewing it negatively, the most favorable perception of Brazil for any other surveyed country in the world.[4]

Explanation:

6 0

4 years ago

2 Na + Cl2 → 2 NaCl

Ksivusya [100]

Approximately 71.77 grams. I think so

8 0

3 years ago

Read 2 more answers

Methane and chlorine react to form four products: CH3Cl, CH2Cl2, CHCl3, and CCl4. At a particular temperature and pressure, 38.4

Anastasy [175]

Answer:

How many grams of CCL4 were formed? 116.9 g

How many grams of Cl2 reacted with the CH4? 243.8 g

Explanation:

First we need to know the molar mass for every element or compound in the reaction:

$M_{CH_{4}}=16 g/mol\\M_{CH_{3}Cl}=50.49g/mol\\M_{CH_{2}Cl_{2}}=84.93g/mol\\M_{CHCl_{3}}=119.38g/mol\\M_{CCl_{4}}=153.82g/mol$

Now we proceed to calculate the amount of moles produced, per product:

$n_{CH_{4}}=2.4\\n_{CH_{3}Cl}=0.18\\n_{CH_{2}Cl_{2}}=0.55\\n_{CHCl_{3}}=0.91\\n_{CCl_{4}}=n_{CH_{4}}-(n_{CH_{3}Cl}+n_{CH_{2}Cl_{2}}+n_{CHCl_{3}})\\n_{CCl_{4}}=0.76mol\\m_{CCl_{4}}=n_{CCl_{4}}*M_{CCl_{4}}\\m_{CCl_{4}}=116.9g$

To calculate the mass of chlorine we just need to make a mass balance:

$m_{CH_{4}}+m_{Cl_{2}}=m_{CH_{3}Cl}+m_{CH_{2}Cl_{2}}+m_{CHCl_{3}}+m_{CCl_{4}}\\m_{Cl_{2}}=m_{CH_{3}Cl}+m_{CH_{2}Cl_{2}}+m_{CHCl_{3}}+m_{CCl_{4}}-m_{CH_{4}}\\m_{Cl_{2}}=243.8g$

3 0

3 years ago

3. What is the current in a wire

Mrrafil [7]

4.8A
12/2.5=4.8, the current in this wire should be 4.8A

5 0

3 years ago

What is the source of the toxic chemicals in poisonous frogs? How might this explain why some frogs are more toxic than others

dalvyx [7]

----======<span>dimethyltryptamine======----

u should try some :)</span>

4 0

4 years ago