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antoniya [11.8K]
2 years ago
5

Which of the following is NOT a trait of gases ?

Chemistry
2 answers:
VikaD [51]2 years ago
8 0
C. fluid
is the correct answer
butalik [34]2 years ago
5 0
Fluid is not a trait of gasses.

C.
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An element from the periodic table is shown below. What can you determine about the number of protons, neutrons, and electrons o
Musya8 [376]

Answer:

They are all the same = 8

Explanation:

Since the symbol of that atom is not give, we can infer from the given number the nature and kind of element we are dealing with.

The number 15.999 rounded up to 16 is the atomic weight of the atom also called the mass number.

Although not peculiar enough, we are certain that this atom is Oxygen.

 On the periodic table, elements are arranged based on their atomic numbers.

    Atomic number of oxygen = 8 = number of protons

For every neutral atom on the periodic table, the number of protons and electrons are the same

Atomic number of oxygen = number of protons = number of electrons = 8

 Number of neutrons = Mass number - atomic number = 16 - 8 = 8

4 0
3 years ago
Where is the energy being transferred from in an endothermic reaction?
Alisiya [41]
In an endothermic reaction, the heat in going in. it absorbs energy from its surroundings.

hope this helps!
3 0
3 years ago
You are given 10ml (M) 20 Naoh solution in a conical flask and asked to titrate with (M) 20 Hcl and (M) 20 H2so4 separately. cal
Solnce55 [7]

Answer:

n_{HCl}=0.2molHCl\\n_{H_2SO_4}=0.1molH_2SO_4

Explanation:

Hello!

In this case, since the reactions between NaOH and the acids are:

NaOH+HCl\rightarrow NaCl+H_2O\\\\2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O

Whereas we can see the 1:1 and 2:1 mole ratios between NaOH and HCl and H2SO4 respectively. In such a way, at the equivalence point we realize that:

n_{HCl}=n_{NaOH}=V_{NaOH}M_{NaOH}=0.01L*20mol/L=0.2molHCl\\\\2n_{H_2SO_4}=n_{NaOH}\\\\n_{H_2SO_4}=\frac{1}{2} V_{NaOH}M_{NaOH}=\frac{0.01L*20mol/L}{2} =0.1molH_2SO_4

Best regards!

8 0
2 years ago
How much 2.0 M NH4NO3 is needed to make 0.585 L of 1.2 M NH4NO3 solution?
Nutka1998 [239]

Answer:

b . 0.351 L.

Explanation:

Hello!

In this case, since diluted solutions are prepared by adding an extra amount of diluent to a stock-concentrated solution, we infer that the number of moles of solute remains the same, therefore we can write:

C_1V_1=C_2V_2

Thus, solving for the volume of the stock solution, V1, we obtain:

V_1=\frac{C_2V_2}{C_1}

Now, by plugging in the given data we obtain:

V_1=\frac{1.2M*0.585L}{2.0M}\\\\V_1=0.351L

Therefore, the answer is b . 0.351 L.

Best regards!

5 0
2 years ago
what are the similarities and differences between the crocodile , sheep , and gorilla digestive system?​
ASHA 777 [7]

Answer: Crocodile is a reptile whereas sheep and gorilla are the mammals.

Explanation:

Crocodile, sheep, and gorilla have alimentary canal in their digestive system. The urea is the common excretory waste.

Mouth is typically large in case of crocodile and comparatively small in sheep and gorilla.

In crocodile more sharp teeth are present as compared to sheep and gorilla for mastication of food and capturing the prey like fish or large animals like zebra.

The crocodile palate is more stronger than sheep and gorilla because it enable it to chew the bones of the prey.

5 0
2 years ago
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