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Sever21 [200]
3 years ago
14

PLS HELP NO LINKS PLS WILL MARK BRAINLIEST IF CORRECT

Chemistry
1 answer:
alexdok [17]3 years ago
8 0

Answer:

The Answer would be B (Materials can be seen in picometers which are trillionths of a meter or the size atoms.

Explanation:

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If the students were told that one of the materials was titanium and that titanium is still a solid when heated to 1,000°C, whic
Paladinen [302]

The sample having solid substance is considered as titanium.

<h3>Which sample was titanium?</h3>

That sample is considered as Titanium which is still present as a solid substance because all the other samples turns into liquid state due to high temperature.

While on the other hand, the sample which contains titanium has a solid particles and still solid on high temperature so we can conclude that the sample having solid substance is considered as titanium.

Learn more about titanium here: brainly.com/question/11496905

5 0
2 years ago
Use water as an example to contrast the properties of a compound with the elements from which it is composed
ahrayia [7]
Properties of a compound is completely different from their elements.

Water is composed by hydrogen and oxygen.

For example, the boiling point of oxygen is - 183 °C and hydrogen is - 253 °C, meanwhile, water has a boiling point of 100°C

Another example is when you put a burning wooden splint into oxygen, it burns more brightly. Put it in hydrogen, you may hear a "pop" sound, or even explode when large amount of hydrogen. But if u put a burning splint in water, it goes off.
4 0
2 years ago
36g of an alloy of copper and zinc contains 45% copper. how much pure copper do you need to add in order to get a 60% copper all
iogann1982 [59]
First, you need to count copper mass in alloy.
Second, you have to make an equation an find x ( the copper mass must be added). The answer is: 13,5g pure copper

7 0
3 years ago
Based on the activity series, which one of the reactions below will occur (Spontaneous)? A. Mn (s) + NiCl2 (aq) → MnCl2 (aq) + N
kap26 [50]

Answer:

Mn (s) + NiCl2 (aq) → MnCl2 (aq) + Ni

Explanation:

The order of displacement of metals from aqueous solution by another metal is defined by the activity series of metals.

The activity series arranges metals in order of reactivity and increasing electrode potentials. The less negative the electrode potential of a metal is, the less reactive it is and the lower it is found in the activity series.

Nickel has a less negative electrode potential than manganese hence it is displaced from an aqueous solution of its salt by manganese spontaneously.

8 0
3 years ago
Which of the following has the most H+ ions in its solution?
devlian [24]

Answer:

A.

Explanation:

The lower the pH  the greater the concentration of H+ ions. Hydrochloric acid with a pH of 1 is a strong acid  and is highly ionised in solution.  It has the most H+ ions

7 0
3 years ago
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