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Nesterboy [21]
3 years ago
14

Helpppppp!!!!!!!!!!!!!!!

Chemistry
2 answers:
NeX [460]3 years ago
4 0

the answer is A. A power source such as battery

Helen [10]3 years ago
3 0

The answer is:

A.) a power source, such as a battery

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Which of the following bonds will have the smallest difference in electronegativity?
Vitek1552 [10]

Answer:

The answer to your question is the first choice (H₂)

Explanation:

Process

Look for the electronegativity of the elements of this exercise

a) H₂ = 2.2 - 2.2 = 0

b) NaF = 3.98 - 0.93 = 3.05

c) HBr = 2.96 - 2.2 = 0.76

d) HS⁻ = 2.58 - 2.2 = 0.38

The molecule that has the smallest difference in electronegativity is H₂

6 0
3 years ago
Abcdefghijklmnopqrstuvwxyz
Sholpan [36]

now I know my abcs next time wont you sing with me

8 0
3 years ago
Read 2 more answers
The most ideal way to perform a two-point turn is by
Stells [14]
Is by turning a few seconds before

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3 years ago
Write the balanced half equation of iron 2 and permanganate in a solution of acid. Show all of your work.
Aleks [24]

Answer:

5Fe⁺² + MnO₄⁻ + 8H⁺ => 5Fe⁺³ + Mn⁺² + 4H₂O

Explanation:

Fe⁺² + MnO₄⁻ +  H⁺ => Mn⁺² + Fe⁺³ +  H₂O

5(Fe⁺² => Fe⁺³ + 1e⁻)      =>                        5Fe⁺² => 5Fe⁺³ + 5e⁻

<u>MnO₄⁻ + 5e⁻ => Mn⁺²    =>   MnO₄⁻ + 8H⁺ + 5e⁻ => Mn⁺² + 4H₂O</u>

                                      =>  5Fe⁺² + MnO₄⁻ + 8H⁺ => 5Fe⁺³ + Mn⁺² + 4H₂O

6 0
3 years ago
Please help me!! 70 points!!
ICE Princess25 [194]
Do all substances dissolve in water? Kids explore the varying levels of solubility of common household substances in this fun-filled experiment!

Materials Needed:
4 clear, glass jars filled with plain tap water
Flour
Salt
Talcum or baby powder
Granulated sugar
Stirrer
Step 1: Help your child form a big question before starting the experiment.

Step 2: Make a hypothesis for each substance. Perhaps the salt will dissolve because your child has watched you dissolve salt or sugar in water when cooking. Maybe the baby powder will not dissolve because of its powdery texture. Help your child write down his or her predictions.

Step 3: Scoop a teaspoon of each substance in the jars, only adding one substance per jar. Stir it up!

Step 4: Observe whether or not each substance dissolves and record the findings!

Your child will likely note that that sugar and salt dissolve, while the flour will partially dissolve, and the baby powder will remain intact. The grainy crystals of the sugar and salt are easily dissolved in water, but the dry, powdery substances are likely to clump up or remain at the bottom of the jar.

As you can see, the scientific method is easy to work into your child’s scientific experiments. Not only does it increase your child’s scientific learning and critical thinking skills, but it sparks curiosity and motivates kids as they learn to ask questions and prove their ideas! Get started today with the above ideas, and bring the scientific method home to your child during your next exciting science experiment
7 0
2 years ago
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