3 years ago

Which of these elements has the greatest average atomic mass?4

Chemistry

2 answers:

Arte-miy333 [17]3 years ago

7 0

Hi the answer is actually B

maks197457 [2]3 years ago

7 0

Think the answer is B too

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The step by step direction of a experiment are found in...

blondinia [14]

Answer:

I believe it the Data Table

Explanation:

because that the final step of an experiment; recording your data throughout the experiment, and that where you recorded your steps and information throughout the experiment.

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2 years ago

A volume of 90.0 mLmL of aqueous potassium hydroxide (KOHKOH) was titrated against a standard solution of sulfuric acid (H2SO4H2

Alja [10]

Answer:

0.823 M was the molarity of the KOH solution.

Explanation:

$H_2SO_4+KOH\rightarrow K_2SO_4+2H_2O$ (Neutralization reaction)

To calculate the concentration of base , 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 $H_2SO_4$

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

We are given:

$n_1=2\\M_1=1.50 M\\V_1=24.7 mL\\n_2=1\\M_2=?\\V_2=90.0 mL$

Putting values in above equation, we get:

$2\times \1.50 M\times 24.7 mL=1\times M_2\times 90.0 mL$

$M_2=\frac{2\times 1.50M\times 24.7 mL}{1\times 90.0 mL}=0.823 M$

0.823 M was the molarity of the KOH solution.

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3 years ago

4. If the speed of an object increases, its kinetic energy

Studentka2010 [4]

Answer:

I think the answer is increases

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2 years ago

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xxMikexx [17]

Answer:

the correct answer is 17 significant figures

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3 years ago

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Murrr4er [49]

Explanation:

Ionic bonds

Covalent bond

Vanderwaal force of attraction

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3 years ago

Read 2 more answers