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Nutka1998 [239]

3 years ago

5

Help pls.!! It's due tonight

1 answer:

marshall27 [118]3 years ago

8 0

Answer:

1. It will most likely die

2. The ostrilope with level 10 armor will most likely reproduce more offspring because it is adapted to the environment.

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NaI+pb(so4)2=Pbi4+Na2(so4) <br> How do you balance this equation

Ipatiy [6.2K]

Answer:

By putting a coefficient 4 on NaI and 2 on Na₂SO₄

4NaI + Pb(SO₄)₂ → Pbi4 + 2Na₂SO₄

Explanation:

A chemical equation is balanced for it to obey the law of conservation of mass.
According to the law of conservation of mass, the mass of the reactants should be equal to the mass of products.
Balancing involves putting coefficients on reactants and products to get an equal number of atoms of each element on either side of the equation.
In this case, putting a coefficient four on NaI and two on Na₂SO₄ will make the equation to be balanced.

Therefore, the balanced chemical equation is;

4NaI + Pb(SO₄)₂ → Pbi4 + 2Na₂SO₄

6 0

4 years ago

You have 16.0 g of some compound and you perform an experiment to remove all of the oxygen, 11.2 g of iron is left. What is the

Makovka662 [10]

The empirical formula of this compound is $Fe_2O_3$

<h3>Empirical formula </h3>

To calculate the empirical formula of a compound, the value of moles of each element is needed.

As we have the information of the mass value, we will use the molar mass expression, which corresponds to:

$MM_O = 16g/mol\\MM_Fe = 55.8g/mol$

$MM = \frac{m}{mol}$

O

$16 = \frac{4.8}{x}$

$x = 0.3mol$

Fe

$55.8=\frac{11.2}{x}\\x = 0.2$

As the value of the empirical formula must be an integer, simply multiply the two values by a common factor:

$O = 0.3 \times 10 = 3\\Fe = 0.2 \times 10 = 2$

$Fe_2O_3$

So, the empirical formula of this compound is $Fe_2O_3$ .

Learn more about empirical formula: brainly.com/question/1247523

3 0

2 years ago

Which of these most likely indicates that a chemical change has happened? A. Spoiled milk gives off a strong oder. B. Candle wax

Doss [256]

Answer:

B- Candle wax melts when it is heated.

6 0

3 years ago

PLEASE HELP ME WITH THID IFK IT!! ILL GIVE YOU EXTRA POINTS

xenn [34]

But a check at the bottom and x at the top

8 0

3 years ago

2. When two oppositely charged particles are brought near each other, they produce a torceted the stone

Svetach [21]

Answer:

A

Explanation:

An unbalanced force is your answer.

8 0

3 years ago