There are<br>questions in the math section of the Aspire test.

Please follow me<br><br><br>What is science ?

bonufazy [111]

<h2>Explanation:</h2><h3>the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment. </h3>

<h3>"the world of science and technology"</h3><h3>Similar:</h3><h3>branch of knowledge</h3><h3>area of study</h3><h3>discipline</h3><h3>field</h3><h3>a particular area of science.</h3><h3>plural noun: sciences</h3><h3>"veterinary science"</h3><h3>a systematically organized body of knowledge on a particular subject.</h3><h3>"the science of criminology" </h3>

<h3>Translations and more definitions</h3><h3>Learn new words</h3><h3>Which word is similar to science?</h3><h3>Discipline</h3><h3>or</h3><h3>Discussion</h3><h3>Question 1 of 5</h3><h3>Feedback</h3>

<h3>Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. ... In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws. </h3>

6 0

3 years ago

The volume of a single tantalum atom is 1.20×10-23 cm3. What is the volume of a tantalum atom in microliters?

sergiy2304 [10]

Answer:

1.20x10⁻²⁰μL

Explanation:

1cm³ is equal to 1milliliter. As we must know, 1milliliter = 1000 microliters, 1000μL. To convert the 1.20x10⁻²³mL we need to use the conversion factor: 1mL = 1000μL.

The volume of tantalum in μL is:

1.20x10⁻²³mL * (1000μL /1L) = 1.20x10⁻²⁰μL

3 0

3 years ago

"30 mph north" is an example of:<br> O velocity<br> speed<br> distance<br> O displacement

Dmitrij [34]

Answer:

distance velocity displacement, all three

Explanation:

7 0

3 years ago

Which are the three main types if lipids

konstantin123 [22]

The three main types of lipids are triglycerides, steroids and phospholipids

8 0

3 years ago

Read 2 more answers

In an experiment, a student made a compund of sulfur and copper, and now she needs to find if the compound is copper (I) sulfide

finlep [7]

<u>Answer:</u> The formula for the given compound is $Cu_2S$

<u>Explanation:</u>

An ionic compound is defined as the compound which is formed when electron gets transferred from one atom to another atom. These are usually formed when a metal reacts with a non-metal.

The chemical formula of copper (I) sulfide is $Cu_2S$ because this is formed by the combination of $Cu^+$ ions and $S^{2-}$ ions

The chemical formula of copper (II) sulfide is $CuS$ because this is formed by the combination of $Cu^{2+}$ ions and $S^{2-}$ ions

To calculate the percent composition of element in a compound, we use the equation:

$\text{Percent composition of element}=\frac{\text{Mass of element}}{\text{Mass of compound}}\times 100$ ...........(1)

<u>For copper (I) sulfide:</u>

Mass of copper = (2 × 63.546) = 127.092 g/mol

Mass of copper (I) sulfide = 159.16 g/mol

Putting values in equation 1, we get:

$\text{Percent composition of copper in }Cu_2S=\frac{127.092g}{159.16g}=79.85\%$

<u>For copper (II) sulfide:</u>

Mass of copper = 63.546 g/mol

Mass of copper (II) sulfide = 95.611 g/mol

Putting values in equation 1, we get:

$\text{Percent composition of copper in CuS}=\frac{63.546g}{95.611g}=66.46\%$

<u>Given compound:</u>

Mass of copper in given compound = 0.8383 grams

Mass of given compound = 1.0440 grams

Putting values in equation 1, we get:

$\text{Percent composition of copper in given compound}=\frac{0.8383g}{1.044g}=80.29\%$

The percent composition of copper is close to the composition in copper (I) sulfide.

Hence, the formula for the given compound is $Cu_2S$

8 0

3 years ago

There arequestions in the math section of the Aspire test.​

There arequestions in the math section of the Aspire test.