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3 years ago

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Chemistry

2 answers:

anzhelika [568]3 years ago

6 0

Oh okie oh yeah yeah I don’t know ‍♂️

kvasek [131]3 years ago

4 0

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When the adhesive forces between a liquid and the walls of a capillary tube are greater than the cohesiveforces within the liqui

Vinil7 [7]

Answer:

B)the liquid level in a capillary tube will rise above the surrounding liquid and the surface in the capillary tube will have a concave meniscus

8 0

4 years ago

Jupiter's moon io was discovered to have high concentrations of sulfur oxides in its atmosphere. this, in combination with resea

Viefleur [7K]

<u>Answer:</u> The chemical formula of the given compound will be $S_2O_2$

<u>Explanation:</u>

The compound formed is disulfur dioxide.

Covalent compound is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound. These are usually formed when two non-metals react.

Disulfur dioxide is a covalent compound because sharing of electrons takes place between sulfur and oxygen. Both the elements are non-metals and hence, will form covalent bond.

The nomenclature of covalent compound is given by:

The less electronegative element is written first.
The more electronegative element is written then, and a suffix is added with it. The suffix added is '-ide'.
If atoms of an element is greater than 1, then prefixes are added which are 'mono' for 1 atom, 'di' for 2 atoms, 'tri' for 3 atoms and so on..

Hence, the chemical formula of the given compound will be $S_2O_2$

3 0

3 years ago

What would be the new pressure if a 400 mL gas sample at 380 mm Hg is expanded to 800 mL with no change in temperature

solong [7]

Answer:

25 atm or 190mmHg

Explanation:

Since Temperature is constant we dont need to worry about it so.

P1V1=P2V2

Rewritten as (P1xV1)/V2 Always use liters in gas laws

I Prefer atm so ill convert to that to use in the equation.

(.5atmx.4L)/.8L =.25 atm or 190mmHg

(You can convert mmHg to atm by dividing by 760)

3 0

3 years ago

In which liquid does solid brass float?

Anarel [89]

Answer:

when it come to brass its heavier than water so it will

sink.

so it will be car oil, soap that's all i know

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4 0

4 years ago

Complete and balance the molecular equation for the reaction of aqueous sodium carbonate, Na 2 CO 3 , and aqueous nickel(II) chl

pantera1 [17]

Answer:

NiCl2 (aq) + Na2CO3 (aq) ---> NiCO3 (s) + 2NaCl (aq)

Explanation:

Soluble ionic compounds exist as ions in solution.

Na 2CO3, will contain Na2CO3 (aq) --> 2Na ^+ (aq) + CO2 ^-3 (aq)

The same way, a solution of calcium chloride,

CaCl 2, will contain CaCl2 (aq) --> Ca2^+ (aq) + 2Cl^− (aq)

Mixing both solution, the calcium cations

Ca 2^+ , will apir up with the carbonate anions, CO2^−3 , and form the Insoluble calcium carbonate, CaCO ^3, which precipitates out of solution.

The complete ionic equation, which features all the ions that are present in solution, will be like this

2 Na^+ (aq) + CO2^−3 (aq) + Ca2^+ (aq) + 2Cl^− (aq) --> CaCO 3 ↓ (s) + 2Na^+ (aq) + 2Cl^− (aq)

Notice that you have two sodium cations and two chloride anions on the products' side, which is why you have 2NaCl

NiCl2 (aq) + Na2CO3 (aq) ---> NiCO3 (s) + 2NaCl (aq)

4 0

3 years ago