All categories

3 years ago

Drag each tile to the correct box.

Chemistry

1 answer:

pychu [463]3 years ago

4 0

problem identification

hypothesis

experimentation

data collection and analysis

data interpretation

data presentation

conclusion

You might be interested in

What is the concentration of NaCI in an aqueous solution that contains 0.032 grams of NaCI in 600. Grams of the solution

jolli1 [7]

Answer:

0.00032 Grams of NaCl per 1 gram of the solution

Explanation:

8 0

3 years ago

How many carbon atoms are present in 3.900 x 10-4 mol of carbon? Give your answer in scientific notation. x 10 (select) A

AnnyKZ [126]

Answer: The number of atoms of carbon present in given number of moles are $2.350\times 10^{20}$

Explanation:

We are given:

Number of moles of carbon = $3.900\times 10^{-4}mol$

According to mole concept:

1 mole of an element contains $6.022\times 10^{23}$ number of atoms.

So, $3.900\times 10^{-4}mol$ of carbon will contain = $3.900\times 10^{-4}\times 6.022\times 10^{23}=2.350\times 10^{20}$ number of atoms.

Hence, the number of atoms of carbon present in given number of moles are $2.350\times 10^{20}$

4 0

3 years ago

Calculate the number of moles of sodium carbonate originally present, if 6.0 ml of 0.100 M HCl were used to titrate the mixture

valina [46]

Answer:

0.0006 mole

Explanation:

Considering:

$Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}$

Or,

$Moles =Molarity \times {Volume\ of\ the\ solution}$

Given :

For HCl :

Molarity = 0.100 M

Volume = 6.0 mL

The conversion of mL to L is shown below:

1 mL = 10⁻³ L

Thus, volume = 6.0×10⁻³ L

Thus, moles of potassium iodide :

$Moles=0.100 \times {6.0\times 10^{-3}}\ moles$

Moles of HCl = 0.0006 moles

From the reaction shown below:-

$HCl+Na_2CO_3\rightarrow NaHCO_3+NaCl$

1 mole of HCl reacts with 1 mole of sodium carbonate.

So,

0.0006 mole of HCl reacts with 0.0006 mole of sodium carbonate.

Moles of sodium carbonate = 0.0006 moles

5 0

3 years ago

What is the atmospheres in order from earth

lozanna [386]

Answer:

Earth's atmosphere is divided into five main layers: the exosphere, the thermosphere, the mesosphere, the stratosphere and the troposphere.

Explanation:

3 0

3 years ago

Colton has an ice cube that has a mass of 4 grams. He places it in a sealed container and then puts it in the microwave on high.

Bas_tet [7]

I believe the answer is D.

The reason is because mass cannot be destroyed. All the mass can really do is become more of less dense.

5 0

3 years ago