All categories

3 years ago

Which of the following is a layer of the solid Earth?

Chemistry

1 answer:

Roman55 [17]3 years ago

6 0

Answer:

The inner core is solid. But the mantle is solid/plastic

Explanation:

I completed the class Earth science

You might be interested in

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of ox

Sever21 [200]

2N2 + 3O2 ---> 2NO + 2NO2
You should do it based on moles and not grams.
1.14 g O = 0.071 moles O
1 g N = 0.071 moles N
So in NO2 you need 2 moles O for each mole of N
1 g N = 0.071 moles, so you need 0.071 x 2 moles of O = 0.0.142 moles O
0.142 moles O x 16 g/mol = 2.27 grams of O. So, you are actually correct because your answer is 2.28 grams. I just prefer to work it out in moles so it makes perfect chemical sense.

4 0

3 years ago

Read 2 more answers

Which solution when mixed with a drop ofbromthymol blue will cause the indicator to change from blue to yellow

zheka24 [161]

Answer: A

Explanation: the only way to turn it from blue to yellow is to mix it with an acidic solution.

6 0

3 years ago

Read 2 more answers

How many joules of energy do you get from eating an apple?

iris [78.8K]

I know I'm days late but why not answer your question anyway, I don't know how many calories your apple has but I believe it would be 95 calories is a normal amount for an apple. So the correct answer to your question is <span>397480 J Hope I'm correct please let me know and mark me Brainliest.
</span>

8 0

3 years ago

Which best describes the relationship between air temperature and high and low pressure air

Vsevolod [243]

Snkxmskkxkskkxlalxkmmskzkzk

5 0

3 years ago

PLEASE URGENT I will give MOST POINTS POSSIBLE For the following reactions, (a) write the balanced reaction equations and (b) ID

Tema [17]

Answer:

see below

Explanation:

Aqueous hydroiodic acid reacts with liquid water in a reversible reaction.

2 HI + 2 H₂O ⇔ 2 H₃O + I₂

This is an acid-base reaction. HI is the acid, and H₂O is the base. The conjugate acid is H₃O, and the conjugate base is I₂. You can figure out the acid and base by a using a table of strong/weak acids and bases. The conjugate will have one less or one more H⁺ depending on if it's an acid or a base.

The expression for Kₐ of the reaction is below. You have to put the acid and its conjugate base on the top and the base and its conjugate on the bottom. I didn't put in H₂O since, although it is the base in this equation, it isn't really a base.

$K_{a}=\frac{[HI][H_{3}O] }{[I_{2}] }$

Solid zinc reacts with solid manganese (IV) oxide producing solid zinc oxide and solid manganese (III) oxide.

Zn + 2 MnO₂ ⇒ ZnO + Mn₂O₃

This is a redox reaction. The Zn is being oxidized, and the Mn is being reduced.

Oxidation: Zn ⇒ Zn⁺² + 2 e⁻

Reduction: Mn⁺⁴ + e⁻ ⇒ Mn⁺³

Aqueous silver nitrate reacts with aqueous calcium chloride.

2 AgNO₃ + CaCl₂ ⇒ 2 AgCl + Ca(NO₃)₂

This is a precipitation reaction. You have two soluble salts combing to form a solution. You now need to figure out which of the compounds produced are not soluble. AgCl is the compound that is not soluble in water, making it the precipitate.

I think I covered everything. If I missed something let me know.

8 0

3 years ago