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4 years ago

11

A water molecule has bonds with an unequal charge distribution. Choose all the statements that apply to water.

2 answers:

rodikova [14]4 years ago

5 0

Water is a polar covalent molecule.
Water is a bent (bent shape) molecule.

noname [10]4 years ago

5 0

Water is bent, it's also polar covalent (because of its bent shape. Bent molecules aren't symmetrical so they can't be nonpolar.).

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Why is it important to communicate the results of an investigation?

denis-greek [22]

Answer:

Communicating Results

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What volume of 3.00 M HCl will form a solution with an acidic pH when mixed with 100 mL of 3.00 M NaOH

Maksim231197 [3]

<u>Answer:</u> The volume of acid should be less than 100 mL for a solution to have acidic pH

<u>Explanation:</u>

To calculate the volume of acid needed to neutralize, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is HCl

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH

We are given:

$n_1=1\\M_1=3.00M\\V_1=?mL\\n_2=1\\M_2=3.00M\\V_2=100mL$

Putting values in above equation, we get:

$1\times 3.00\times V_1=1\times 3.00\times 100\\\\V_1=\frac{1\times 3.00\times 100}{1\times 3.00}=100mL$

For a solution to be acidic in nature, the pH should be less than the volume of acid needed to neutralize.

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4 years ago

If a 25 kg car accelerates at a speed of 100 m/s², what will the force of the car be?

igomit [66]

Answer:

<h2>The answer is 2500 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration is given by

<h3>Force = mass × acceleration</h3>

From the question

mass of car = 25 kg

acceleration = 100 m/s²

The force is

Force = 25 × 100

We have the final answer as

<h3>2500 N</h3>

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Nimfa-mama [501]

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