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3 years ago

How were scientists able to study the center of the Earth

Chemistry

1 answer:

nevsk [136]3 years ago

8 0

Answer is Scientist know about the earth interior from observation of earths gravity seismic waves that travel through the earth and the earths magnetic field as well from how you compare with the chemical composition of meteorites and from experiments that stimulate conditions at the very center of the earth

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Practice Problems Exercise 8.6 Classify each of the following reactions in as many ways as possible.4N H3 (g) 5 O2 (g) n 4NO(g)

nikklg [1K]

Explanation :

(a) $4NH_3(g)+5O_2(g)\rightarrow 4NO(g)+6H_2O(g)$

This reaction is combustion reaction in which an oxygen react with a molecule to give its corresponding oxides ans water molecule.

(b) $S_8(s)+8O_2(g)\rightarrow 8SO_2(g)$

This reaction is a redox reaction or oxidation-reduction reaction in which sulfur get oxidized and oxygen get reduced.

(c) $2Al(s)+3Cl_2(g)\rightarrow 2AlCl_3(s)$

This reaction is a combination reaction in which the two reactants molecule combine to form a large molecule or product.

(d) $2AlN\rightarrow 2Al(s)+N_2(g)$

This reaction is a decomposition reaction in which a large molecule or reactant decomposes to give two or more molecule or products.

(e) $BaCl_2(aq)+Na_2SO_4(aq)\rightarrow BaSO_4(s)+2NaCl(aq)$

This reaction is a double displacement reaction in which the cation of two reactants molecule exchange their places to give two different products.

(f) $2Cs(s)+Br_2(l)\rightarrow 2CsBr(s)$

This reaction is a combination reaction in which the two reactants combine to form a large molecule or product.

(g) $KOH(aq)+HCl(aq)\rightarrow H_2O(l)+KCl(aq)$

This reaction is a double displacement reaction in which the cation of two reactants molecule exchange their places to give two different products.

(h) $2C_2H_2(g)+5O_2(g)\rightarrow 4CO_2(g)+2H_2O(l)$

This reaction is combustion reaction in which a hydrocarbon react with an oxygen to give carbon dioxide and water as a products.

6 0

3 years ago

11. If there are 8.24 x 1022 molecules of NaCl in a salt shaker, what is the mass of the salt?

vlada-n [284]

Answer: 8.12 g NaCl

Explanation: Use Avogadro's number to find the number of m

moles of NaCl:

8.24x10²² molecules NaCl / 1 mole NaCl/ 6.022x10²³ molecules NaCl

= 0.14 mole NaCl

Next convert moles to grams NaCl using its molar mass;

0.14 mole NaCl x 58g NaCl / 1 mole NaCl

= 8.12 g NaCl

6 0

3 years ago

What is crystal field splitting?

kvv77 [185]

Answer:

Crystal field splitting is the difference in energy between d orbitals of ligands. Crystal field splitting number is denoted by the capital Greek letter Δ. Crystal field splitting explains the difference in color between two similar metal-ligand complexes.

4 0

3 years ago

Im in class rn real school help

Ulleksa [173]

Answer:

Weathering involves the use of water and or wind to wear down the environment. The sand dunes were most likely carried by wind to form them and form its shape. Erosion most likely took away parts of the sand to make the sand dune. Deposition most likely deposited sand to the area.

Explanation:

If you possibly want a better explanation, try looking it up :).

#teamtrees #WAP (Water And Plant)

8 0

3 years ago

If a solution has virtually no hydrogen ions what type of ph does it have?

lora16 [44]

D. It has almost no hydrogen ions, therefore it is very basic.

7 0

4 years ago

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