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gogolik [260]
2 years ago
12

In the name carbon dioxide what does the prefix of the second word indicate about a molecule of a dioxide A. It has two carbon a

toms B. It has two oxygen atoms C. It is a polyatomic ion D. It Is an ionic bond
Chemistry
1 answer:
brilliants [131]2 years ago
5 0

Answer:

The answer is option B, that is, it has two oxygen atoms.

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When combined the two substances together in the cup, the product can be described as a ____ or ____ (there are two possible ans
Elina [12.6K]
I am pretty sure it is white white liquid but if I’m not right I am so sorry
8 0
3 years ago
For a beryllium-gold voltaic cell containing Be2+(aq) and Au3+(aq) solutions, do the following. (a) Identify the cathode. (Inclu
OLEGan [10]

Answer:  Gold act as cathode.

Explanation:

Standard potential for an electrochemical cell is given by:

E^0{cell} = standard electrode potential =E^0{cathode}-E^0{anode}

The E^0 values have to be reduction potentials.  

Reduction potentials for given elements

E^o_{Be^{2+}/Be}=-1.97V

E^o_{Au^{3+}/Au}=+1.40V

The element Be with negative reduction potential will lose electrons undergo oxidation and thus act as anode.The element Au with positive reduction potential will gain electrons undergo reduction and thus acts as cathode.

Cathode : 2Au^{3+}+6e^-\rightarrow 2Au

Anode : 3Be\rightarrow 3Be^{2+}+6e^-

3Be+2Au^{3+}(aq)\rightarrow 2Au+3Be^{2+}(aq)

Thus gold act as cathode.

7 0
3 years ago
How many atoms of lead are contained in 0.532mol?​
Colt1911 [192]

Answer:

3.2043 x 10²³

Explanation:

No. of Mole of lead (Pb) = 0.532 mol

No. of atoms of lead = ?

Solution:

Formula Used to calculate

no. of moles = numbers of particles (ions, molecules, atoms) /Avogadro's number

Avogadro's no. = 6.023 x10²³

So,

The formula could be written as

no. of atoms of lead Pb = no. of moles x 6.023 x10²³

Put the values in above formula

no. of atoms of lead Pb = 0.532 mol x 6.023 x10²³

no. of atoms of lead Pb = 3.2043 x 10²³

so 3.2043 x 10²³ atoms of lead are contained in 0.532 mole.

6 0
3 years ago
Where do flowers come from? They are made through the process of sexual reproduction. Flowers may look simple, but there are act
Licemer1 [7]

Answer:

They're sexual reproduction

Explanation:

A flower throws seed at another flower

4 0
2 years ago
Read 2 more answers
What is the density of an object if its mass is 10 g and a volume of 2 mL?
Lilit [14]

Hi there! Let's solve this problem shall we!

⠀Volume = 10g

      Mass = 2 mL

In this specific problem, they are asking us to find the <u><em>density </em></u>of the object. So,<u><em> using the information given to us</em></u> (volume and mass), let's solve the problem!

Now, if you remember, D = M ÷ V

So, let's fill in the blanks!

D = Our unknown value

M = 2mL

V = 10g

Here is the filled out formula:

D = M ÷ V

D = 2mL ÷ 10g

D = 5 g/mL

*Make sure you put the units for your final solution!*

4 0
1 year ago
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