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kirza4 [7]
3 years ago
7

Burning gasoline is an _____________ reaction.

Chemistry
2 answers:
sweet-ann [11.9K]3 years ago
6 0
Burning gasoline is an exothermic reaction.
rusak2 [61]3 years ago
5 0

Answer:

chemical.............

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What must occur for a change to be a chemical reaction? a. There must be a change in chemical properties. b. There must be a cha
sergey [27]

Answer:

A. There must be a change in chemical properties.

At least 2 or 3 atoms must change for it to be considered chemical. There must be some type of reactants that will change this. Otherwise, it's not a chemical reaction.

Hope this helps!

8 0
2 years ago
A solution at 25 degrees Celsius is 1.0 × 10–5 M H3O+. What is the concentration of OH– in this solution? 1.0 × 10–5 M OH– 1.0 ×
Fittoniya [83]

Answer:

1.0 x 10⁻⁹ M OH⁻.

Explanation:

∵ [H₃O⁺][OH⁻] = 10⁻¹⁴.

[H₃O⁺] = 1.0 x 10⁻⁵ M.

<em>∴ [OH⁻] = 10⁻¹⁴/[H₃O⁺] </em>= 10⁻¹⁴/(1.0 x 10⁻⁵ M) = <em>1.0 x 10⁻⁹ M.</em>

<em>So, the right choice is: 1.0 x 10⁻⁹ M OH⁻.</em>

5 0
3 years ago
Electricity generated from any source comes with its own advantages and disadvantages. So, no source of energy for generating el
irakobra [83]

Answer:

Wind energy

An ideal source of energy needs to be reliable, cost effective, safe and must lead to almost zero adverse environmental impact.

Wind energy is energy obtained from air moving at high velocity. This energy is harvested using windmills which convert mechanical energy to electrical energy.

Wind is inexpensive because it occurs naturally. However, a large expanse of land is required in order to mount sufficient number of windmills that will generate enough electrical energy for practical purposes.

This method of electricity generation is safe and does not lead to any environmental hazard unlike the burning of fossil fuels, use of nuclear energy or loss of habitat due to hydroelectric power generation.

Explanation:

6 0
2 years ago
50 POINTS.
Vladimir79 [104]

#1. The correct answer is A.

#2. The correct answer is

      -A.  Minimum Viable Population (MVP)

      -B.  Increase.

      -C. Death rate decreases.

#3. The correct answer is B.

#4. The correct answer is B.

#5. The correct answer is:

-A. Decrease.

-B. Decrease.

-C. Increase.

-D. Decrease.

-E. Increase.

Hope this helps ya!! (:

7 0
3 years ago
Read 2 more answers
Help it's science so help
bija089 [108]
1.b
2.b
3.a
 3 was the the opposite of the scenario stated   

 
7 0
3 years ago
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