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Marta_Voda [28]
3 years ago
11

Which Of The Following Is A Substance, Table Salt, Seawater, Or Sand?

Chemistry
2 answers:
klasskru [66]3 years ago
6 0
Sand is because the other ones are liquid
Monica [59]3 years ago
5 0
Seawater a substance must be liquid
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2C2H6 + 8O2 = 4CO2 + 6H2O
Neporo4naja [7]

Answer:

4 moles of carbon

6 moles of water

Explanation:

I think as there no data given u have to is the numbers infront of the equation e.g 4CO2 so 4.

hope this helps :)

4 0
2 years ago
Which of the following is transferred due to a temperature difference?
quester [9]
Water can be turned to ice if to cold gas if to hot 
ice can turn to water if to hot and stay the same if to cold 
gas will turn to water if to hot and freeze to ice if to cold and the pattern keeps going like that.
hope this helps 
 
8 0
3 years ago
Refer to aqueous solutions containing 1:1 mole ratios of the following pairs of substances. Assume all concentrations are 1 M.
LekaFEV [45]

Answer:

c) HCl and NaCl

Explanation:

Since all the solutions are on a 1:1 mole ratio the comparison is straight forward.

The lowest pH will be for solution c) which has a strong acid, HCl, which ionizes 100 % and the neutral salt NaCl (which is neutral since it is derived from the reaction of the strong acid HCl and the strong base NaOH).

Solutions a) and b) are buffers of  the weak base NH₃ and its conjugate acid NH₄⁺ and weak acid H₃PO₄ and its conjugate weak base NaH₂PO₄ respectively.

Solution c) is a basic solution being a mixture of the weak base NH₃ and the strong base NaOH

Solution e) is a mixture of a weak base NH₂ and weak acid HC₂H₃O₂

7 0
3 years ago
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What causes some atoms of the same element to have different atomic masses?
Vladimir79 [104]

Answer: Some atoms of the same elements that have different atomic masses are called isotopes

Explanation:

so the atoms are the same element but different in mass. Since the isotopes have the same number of protons and electrons the isotopes have much the same chemical behavior. Since the isotopes have different numbers of neutrons the nuclear behavior differs.

4 0
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Answer:

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