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Westkost [7]
4 years ago
10

Which statement correctly contrasts science and pseudoscience

Chemistry
1 answer:
mojhsa [17]4 years ago
8 0
brainly.com/question/1470976 Hope this helps!
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Write the complete ionic equation for the reaction that takes place when aqueous solutions of strontium hydroxide and lithium ph
Nesterboy [21]

Answer : The net ionic equation will be,

3Sr^{2+}(aq)+2PO_4^{3-}(aq)\rightarrow Sr_3(PO_4)_2(s)

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The given balanced ionic equation will be,

3Sr(OH)_2(aq)+2Li_3​PO_4(aq)\rightarrow 6LiOH(aq)+Sr_3(PO_4)_2(s)

The ionic equation in separated aqueous solution will be,

3Sr^{2+}(aq)+6OH^{-}(aq)+6Li^{+}(aq)+2PO_4^{3-}(aq)\rightarrow Sr_3(PO_4)_2(s)+6Li^+(aq)+6OH^{-}(aq)

In this equation, Li^+\text{ and }OH^- are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

3Sr^{2+}(aq)+2PO_4^{3-}(aq)\rightarrow Sr_3(PO_4)_2(s)

4 0
3 years ago
A Chemist measured 184 mL using a graduated cylinder. Based on her experience, the volume did not seem to be correct. This volum
salantis [7]

Answer:

Percent error = 20%

Explanation:

The percent error is calculated using the following equation:

Percent error = |(approximate value - exact value)| / (exact value) x 100%

In this problem, the approximate value was 184 mL and the exact value was 230.0 mL

Percent error = |(184 mL - 230.0 mL)| / (230.0 mL) x 100% = 20%

8 0
3 years ago
When one evaporates a pure substance, what would be seen after this evaporation?
satela [25.4K]

Answer:

3

I would like to understand the temperature at which a substance will vaporize when dissolved in a liquid. I have researched this online for hours, but haven't found a conclusive answer. Is it the boiling point of the dissolved substance? I'm attempting to find the temperature at which caffeine vaporizes when dissolved in water or other vegetable glycerin.

Explanation:

I hope this helps a little bit

4 0
3 years ago
Select all of the characteristics that define matter. A.) Matter has mass. B.)Matter has volume (takes up space). C.)Atoms and c
zysi [14]

Answer:

The answer to your question is: a, b and c

Explanation:

A.) Matter has mass. this option is correct, matter is formed by mass.

B.)Matter has volume (takes up space). this option is correct, matter takes up space.

C.)Atoms and compounds are made out of matter. This option is correct, all atomsand compounds are made out of matter.

D.) All matter has the same density. This optio is wrong, matter of different elements or compounds have different density.

7 0
3 years ago
Read 2 more answers
What states of matter can mechanical waves travel through? Select all that apply.
zzz [600]
All of the above……..
3 0
3 years ago
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