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3 years ago

Solution A has a pH of 3, and solution B has a pH of 5. Which statement best

Chemistry

1 answer:

Katyanochek1 [597]3 years ago

8 0

Answer:

C. Solution B is less acidic than solution A.

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Plot the data points on the graph below and use the corresponding dot colors: 1st data point - blue, 2nd data point - yellow, 3r

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Answer:

The answer is an attached file

Explanation:

I hope it'll be useful to you.

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3 years ago

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What describes Rutherford’s model of the atom?

HACTEHA [7]

Rutherford's model shows that an atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths. ... It was after this that Rutherford began developing his model of the atom.

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3 years ago

Given the formula representing a molecule:

Aleksandr [31]

Answer:

B) Symmetrical and nonpolar

Step-by-step explanation:

The formula is H-C≡C-H.

Each C atom has two electron regions, so VSEPR theory predicts a linear molecular geometry (see image below).

The molecule is symmetrical, because the green line divides the molecule into two halves that are mirror images of each other.

The C-H bonds are slightly polar, because C is more electronegative than H (µ ≈ 0.4 D).

The C atoms are partially negative (red), while the H atoms are partially positive (blue).

However, the two C-H bond dipoles point in opposite directions, so they cancel each other. The molecule has no net dipole moment.

Acetylene is nonpolar.

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3 years ago

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Why would you want to use a material that is not likely to undergo a phsical change for your stepping stone?

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Because a good stepping stone would be a solid and if that solid were to melt or turn to gas you’d have no stepping stone.

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2 years ago

Choose all the answers that apply. Which of the following will decrease reaction rate? increase pressure decrease temperature in

zavuch27 [327]

The following quantities will effect the reaction rate as follows:

1. On increasing Concentration of the reactant: Rate of the reaction will increases.

2. On increasing pressure : Increases the rate of reaction to the side where there are fewer number of molecules.

3.On increasing temperature of an endothermic reaction: Increases the rate of reaction

4. On decreasing temperature of an endothermic reaction: Increases the rate of reaction.

So the answer is increase pressure, decrease temperature, increase concentration will increases the rate of the reaction.

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