3 years ago

Guyss PLEASE HELPPP FOR 10 POINTS

Chemistry

1 answer:

ira [324]3 years ago

7 0

Answer:

Thanks for the free points

Have a Lovely Day

Explanation:

You might be interested in

Polonium -210 decays once before it becomes a stable atom. What is that stable atom?

ycow [4]

Answer:

A. 206 Pb

Explanation:

5 0

3 years ago

What is the molar mass of sulfur trioxide?

tatyana61 [14]

Answer:

80.07 g/mol

Explanation:

Sulfur's g/mol = 32.07

Oxygen's g/mol = 16.00

32.07 + 16.00(3) = 80.07 g/mol

6 0

3 years ago

Read 2 more answers

The stability of an isotope is based on its

sattari [20]

Option 4. ratio of electrons to protons

Isotope that has atomic number of 82 is stable. An element that has an atomic number ∠82 more stable except Tc and Pm. Also there is the concept that isotopes consisting a combination of even-even,even-odd,odd-even, and odd-odd are all stable. Many isotopes with no magic numbers of nucleons are stable

7 0

3 years ago

How many moles of hydrogen are in the sample? Round your answer to 4 significant digits.

finlep [7]

Answer:

1.56 mol H₂

Explanation:

Mg₃(Si₂O₅)₂(OH)₂

There are 4 Si moles per Mg₃(Si₂O₅)₂(OH)₂ mol. With that in mind we can calculate how many Mg₃(Si₂O₅)₂(OH)₂ moles are there in the sample, using the given number of silicon moles:

3.120 mol Si * $\frac{1molMg_3(Si_2O_5)_2(OH)_2}{4molSi}$ = 0.78 mol Mg₃(Si₂O₅)₂(OH)₂

Then we can convert Mg₃(Si₂O₅)₂(OH)₂ moles into hydrogen moles, keeping in mind that there are 2 hydrogen moles per Mg₃(Si₂O₅)₂(OH)₂ mol:

0.78 mol Mg₃(Si₂O₅)₂(OH)₂ * 2 = 1.56 mol H₂

8 0

3 years ago

Scientists have measured and recorded the average rainfall of an area over several years to see if there is a pattern. Which kin

tia_tia [17]

The correct answer is d

8 0

4 years ago