Which of these is a physical property?

Chemistry

2 answers:

Ber [7]4 years ago

6 0

Which of these is a physical property?A. Malleable

lukranit [14]4 years ago

3 0

Malleable is a physical property of matter

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A neutral cloth and a neutral rod are rubbed together. Electrons are transferred from the rod to the cloth. What will be the fin

Mariana [72]

Answer: The net charge on the cloth with be negative.

Explanation:

Because electrons are being transferred from the neutral rod to the neutral rod to the neutral cloth, the cloth will become negative due to the excess electrons. (The rod will also become positively charged, but that’s beyond the scope of the question.)

5 0

2 years ago

What are is the pH range of phenolphthalein and methyl orange

Ad libitum [116K]

Answer:

The pH range of indicators

indicator pKind pH range

litmus 6.5 5 - 8

methyl orange 3.7 3.1 - 4.4

phenolphthalein 9.3 8.3 - 10.0

Explanation:

5 0

3 years ago

Problem page a virus has a mass of ×9.010−12mg and an oil tanker has a mass of ×3.0107kg . use this information to answer the qu

faltersainse [42]

A. The mass of one mole of the virus is calculated by multiplying the mass of a single virus by the Avogadro's number which is equal to 6.022 x 10^23. Performing this operation,

mass = (9.0 x 10^-12 mg)(6.022 x 10^23) = 5.42 x 10^12 mg

In correct number of significant figures, the answer would only have to be 5.4 x 10^12 mg.

b. The number of moles of the virus that will have the same mass as the oil tanker is calculated by dividing the mass of the oil tanker by the mass of one mole of the virus. Note that doing division, both would have to have the same units.

n = (3.0 x 10^7 kg) / (5.4 x 10^12 mg)(1 g/1000 mg)(1 kg/1000 g)

Simplifying,
n = 6

In correct number of significant figures, the answer is 6.0.

4 0

3 years ago

Read 2 more answers

the first three ionization energies of an element x are 590, 1145, and 4912 kj mol-1. what is the most likely formula of the com

joja [24]

<u>Answer:</u> The chemical formula is $XSO_3$

<u>Explanation:</u>

Ionization energy is defined as the amount of energy that is required to remove an electron from a chemical species.

The ionization energy equation for the given values follow:

$X(g)\rightarrow X^+(g)+e^-;E_I=590kJ/mol$

$X^+(g)\rightarrow X^{2+}(g)+e^-;E_I=1145kJ/mol$

$X^{2+}(g)\rightarrow X^{3+}(g)+e^-;E_I=4912kJ/mol$

From the values of ionization energy above, it can be seen that the ionization energy increases as every succeeding electron is removed.

Second ionization energy is a little higher than the first one but there is a huge amount of difference between the third and second ionization energy.

This implies that the ion formed during second ionization energy has a stable configuration and it requires a humongous amount of heat to release the third electron.

Hence, the ion formed will be $X^{2+}$