All categories

3 years ago

Pleaseee, PLEASEEEEEE I need HELPP with this

Chemistry

2 answers:

weqwewe [10]3 years ago

4 0

The pictures to the right show two samples of substance X. Answer the questions below about the intensive and extensive properties of substance X. You may assume that both cubes are solid (that is, not hollow inside).

Sample A melts at the same temperature as sample B.

Sample B has a larger mass than sample A.

Sample A has a smaller volume than sample B.

If sample A floats in water, sample B . will also float in water

If sample B is attracted to a magnet, sample A will also be attracted to a magnet.

Savatey [412]3 years ago

3 0

Explanation:

Melting is defined as a change in which a solid changes into liquid state.

For example, an ice cube will melt at room temperature whereas a large ice block will also melt at room temperature.

Therefore, sample A melts at the same temperature as sample B.

Since sample A is small in size whereas sample B is larger in size. Hence, sample B has a larger mass than sample A. Also, sample A has smaller volume than sample B.

On the other hand, floating ability of a substance depends on its density. Therefore, being sample of same substance if sample A floats in water then sample B will also float in water.

Also, it is given that sample B is attracted to a magnet therefore, sample A will also be attracted to a magnet.

You might be interested in

Which type of reaction occurs in the following equation?

Tems11 [23]

The type of reaction in above reaction is refered to as a disproportionation reaction .It sometimes used to describe desymmetrizing reaction.in the equation above compounds of intermediate oxidation state are converted to two different compound, that is Clo3 ions and 2cl-

3 0

3 years ago

If 36.2g of Acetic Acid (HC2H302) was dissolved in 300. mL of water, what is the

uysha [10]

Answer:

2.01 M

Explanation:

Step 1: Calculate the moles of acetic acid (HC₂H₃O₂)

The molar mass of acetic acid is 60.05 g/mol. We will use this data to calculate the moles corresponding to 36.2 g of acetic acid.

$36.2g \times \frac{1mol}{60.05g} = 0.603mol$

Step 2: Convert the volume of solution to liters

We will use the relation 1000 mL = 1 L. We assume that the volume of solution is that of water (300 mL)

$300mL \times \frac{1L}{1000mL} = 0.300L$

Step 3: Calculate the molarity of the solution

The molarity is equal to the moles of solute (acetic acid) divided by the liters of solution

$M = \frac{0.603mol}{0.300L} = 2.01 M$

7 0

3 years ago

How do we differentiate chemical change from physical change

bija089 [108]

Answer:

Chemical change :has change in mass, heat is needed, new element is formed, hard to reverse.......

Physicalchange:does not have change in mass, heat is not necessary, no new element is formed, easy to reverse

5 0

3 years ago

The table shows the total number of electrons in Atom A and Atom B. Atom Number of Electrons A 10 B 18 Which statement is correc

HACTEHA [7]

Answer:

Both A and B will be unreactive!

Explanation:

10=2, 8

18=2, 8, 8

4 0

3 years ago

Read 2 more answers

Nucleotide bases bonded to a sugar phosphate backbone make up _____.

Alchen [17]

Nucleotide bases bonded to a sugar phosphate backbone make up nucleic acids such as DNA (deoxyribonucleic acid) and RNA (<span>ribonucleic acid)</span>. Nucleotides have three major parts: sugars, phosphates, and a nitrogenous base. DNA uses four nitrogenous bases: Adenine, Guanine, Cytosine, and Thymine. RNA uses the same bases except for Thymine, which is replaced by Uracil.

5 0

3 years ago