All categories

2 years ago

Please help me I am confused

Chemistry

2 answers:

Olin [163]2 years ago

7 0

A, B, C, E, F. These are the correct answers.

Free_Kalibri [48]2 years ago

5 0

I’d say it’s B,C,F!

You might be interested in

60.0 mL of 0.0100 M H3PO4 are required to neutralize 30.0 mL of a solution of KOH. What is the molarity of the potassium hydroxi

Vsevolod [243]

Answer:

h2o

Explanation:

3 0

2 years ago

How many moles of zinc are there in 0.890 g of zinc?

NNADVOKAT [17]

Answer:

There are

4.517

⋅

atoms of Zn in 0.750 mols of Zn.

Explanation:

Since we know that there are

6.022

⋅

atoms in every mole of a substance (Avogadro's Number), there are

6.022

⋅

0.750

atoms of Zn in 0.750 mols of Zn.

4 0

2 years ago

Read 2 more answers

c3H8 + 5O2 = 3CO2 + 4H2O When 44.0 grams of propane (C3H8) under goes complete combustion, how many grams of water will be produ

Umnica [9.8K]

<u>Answer:</u> 72 grams of water will be produced.

<u>Explanation:</u>

To calculate the number of moles, we use the formula:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ....(1)

Mass of propane = 44 grams

Molar mass of propane = 44 grams

Putting values in above equation, we get:

$\text{moles of propane}=\frac{44g}{44g/mol}=1mole$

For the reaction of combustion reaction of propane, the equation follows:

$C_3H_8+5O_2\rightarrow 3CO_2+4H_2O$

By Stoichiometry of the reaction,

1 mole of propane produces 4 moles of water.

So, 1 mole of propane will produce = $\frac{1}{1}\times 4=4moles$ of water.

Now, to calculate the amount of water, we use equation 1, we get:

Molar mass of water = 18 g/mol

$4mol=\frac{\text{Mass of water}}{18g/mol}$

Mass of water produced = 72 grams

Hence, 72 grams of water will be produced.

6 0

3 years ago

When gases dissolve in gases or when liquids and gases dissolve in liquids, _________eventually spreads the particles evenly thr

natulia [17]

When gases dissolve in gases or when liquids and gases dissolve in liquids, particles movement eventually spreads the particles evenly throughout the solvent resulting in a homogeneous mixture.

Explanation:

When gases dissolve in gases or when liquids and gases dissolve in liquids, particle movement eventually spreads the particles evenly throughout the solvent resulting in a homogeneous mixture.

Solid particles do not dissolve easily like liquids and gases dissolve. Solid particles when dissolved in solid the particles moves very little. After getting heated and becomes molten then they get mixed.

But in the liquids and gases atoms moves and the particles get eventually spread and also get mixed after cooled.

7 0

3 years ago

does girl code apply for when a girl dates her ex's friend. If not, is it wrong for the girl to do that (15 points)

andreev551 [17]

Answer:

Nope unless u like the ex it’s super wrong but if u like their friend ur good

Explanation:

6 0

2 years ago

Read 2 more answers