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Flauer [41]
3 years ago
12

Which of the following questions can be answered by science?

Chemistry
2 answers:
Irina18 [472]3 years ago
7 0

Answer:

A. What is the composition of air?, B. Should the driving age be reduced?, D.

Should students be allowed to bring toys to school? Answer: A,B,D.

Hunter-Best [27]3 years ago
6 0

Answer:

<h2><em><u>(</u></em><em><u>a</u></em><em><u>)</u></em><em><u>,</u></em><em><u> </u></em><em><u>(</u></em><em><u>b</u></em><em><u>)</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>(</u></em><em><u>c</u></em><em><u>)</u></em><em><u> </u></em><em><u>I</u></em><em><u> </u></em><em><u>guess</u></em></h2>
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A rock is an example
sveticcg [70]

Answer:

the correct answer is option ( B ) rocks cannot change their volume ,shape, and size

because a solid substance cannot change its, volume, shape and size

Hope it helps you

have a nice day

3 0
2 years ago
Question 5 of 10
lesya [120]

Chemical equation represents a redox reaction :

2Li + MgCl₂ → 2LiCl + Mg

<h3>Further explanation</h3>

The oxidation-reduction reaction or abbreviated as Redox is a chemical reaction in which there is a change in oxidation number

Reaction

2Li + MgCl₂ → 2LiCl + Mg

Oxidation is an increase in oxidation number, while reduction is a decrease in oxidation number.

Oxidation

\tt Li\rightarrow Li^+(0~to~+1)

Reduction

\tt Mg^{+2}\rightarrow Mg(+2~to~0)

5 0
2 years ago
True or false: A skeleton equation in chemistry shows the relative amounts of all materials in the reaction
Neko [114]

Answer:

false im pretty sure.

4 0
3 years ago
A 24.00 mL sample of a solution of Pb(ClO3)2 was diluted with water to 52.00 mL. A 17.00 mL sample of the dilute solution was fo
klio [65]

Answer:

0.238 M

Explanation:

A 17.00 mL sample of the dilute solution was found to contain 0.220 M ClO₃⁻(aq). The concentration is an intensive property, so the concentration in the 52.00 mL is also 0.220 M ClO₃⁻(aq). We can find the initial concentration of ClO₃⁻ using the dilution rule.

C₁.V₁ = C₂.V₂

C₁ × 24.00 mL = 0.220 M × 52.00 mL

C₁ = 0.477 M

The concentration of Pb(ClO₃)₂ is:

\frac{0.477molClO_{3}^{-} }{L} \times \frac{1molPb(ClO_{3})_{2}}{2molClO_{3}^{-}} =0.238M

4 0
3 years ago
Why are gold rings not made from 100% gold?
aleksandr82 [10.1K]
Gold is actually very soft. If rings were made of pure gold they would bend and become disfigured. Other elements are added to give the ring its stability.
3 0
3 years ago
Read 2 more answers
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