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GarryVolchara [31]
3 years ago
10

Give two reason (evidence) Why we think the Earth's outer core is liquid

Chemistry
1 answer:
mihalych1998 [28]3 years ago
5 0
The outer-core temperature has exceeded the melting point of iron/nickel, which is a function of pressure casing it to be liquid

that's the only reason I got. sorry!
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Which of the following would happen if Earth's moon were half the size that it is now? O The oceans' tidal variations would be s
Brilliant_brown [7]

Answer: A. The oceans‘ tidal would be smaller because the moon would exert less gravitational pull on earths oceans.

Explanation:

i got it right :)

3 0
2 years ago
which of the following pairs of elements could react to form an ionic compound? A. potassium and calcium B. sulfur and oxygen C.
Grace [21]
The correct option is FLUORINE AND COPPER.
An ionic compound is usually formed by the combination of a metal and a non metal, the metal usually act as an electron donor while the non metal act as an electron acceptor. Thus, in ionic compounds, there is total transfer of electrons from the metal to the non metal. In the question given here, copper is the metal while the fluorine is the non metal.<span />
4 0
2 years ago
During combustion, methane yields carbon dioxide and water. The unbalanced equation for this reaction is:CH4(g)+O2(g) → CO2(g)+
almond37 [142]

Answer:

CH₄(g)  +  2O₂(g) → CO₂(g)  +  2H₂O(l)

Mole ratios for the balanced equation be:

1:2, 2:1, 1:1, 1:2, 2:2

Explanation:

CH4(g)+O2(g) → CO2(g)+ H2O(l)

To balance a chemical equation, you must have the same mole of each element in both sides of the reaction (reactant side and product side)

CH₄(g)  +  2O₂(g) → CO₂(g)  +  2H₂O(l)

2 C

8 H

8 O

In  both side.

It takes 1 mole of methane to react with 2 mole of oxygen in order to produce 1 mol of dioxide and 2 mole of water.

Mole ratios for the balanced equation be:

Mole ratios for the balanced equation be:

1:2, 2:1, 1:1, 1:2, 2:2  - We should compare each compound

1 mol methane → 2 mole of oxygen

2 mole of oxygen → 1 mol of methane

2 mole of oxygen → 1 mol of dioxide

1 mole of dioxide → 1 mol of Methane

2 mole of water → 2 mole of oxygen (the same as opposite)

1 mol methane →  2 mole of water

2 mol of water → 1 mol of methane

4 0
3 years ago
How many milligrams are in 2.5 kg?
ludmilkaskok [199]

Answer:

There are 2500000 milligrams in 2.5 kg

7 0
2 years ago
Separate the reaction Cl2 + 2Cs = 2CsCl into its component half reactions.
AveGali [126]
So the question ask to separate the reaction of the element if your problem into its component half reaction and the best answer or the elements are the following: (Cs-> Cs+ + 1e-) x2 and  <span>2e-+Cl2->2Cl-. I hope you are satisfied with my answer and feel free to ask for more </span>
6 0
3 years ago
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