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SIZIF [17.4K]
3 years ago
10

Weight measures (2 points) how dense an object is. how large an object is. the amount of mass in an object. the effect of gravit

y on an object.
Chemistry
1 answer:
Cerrena [4.2K]3 years ago
4 0

A weight of an object is a measure of the force exerted on the object by gravity. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.

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If zinc has an atomic number of 30 and a mass number of 65 what is the correct number of protons neutrons and electrons ?
ioda

Answer:

Explanation:

Name                 Zinc

Atomic Mass            65.39 atomic mass units

Number of Protons   30

Number of Neutrons      35

Number of Electrons      30

4 0
3 years ago
Read 2 more answers
The solubility of silver(I)phosphate at a given temperature is 1.02 g/L. Calculate the Ksp at this temperature. After you get yo
Snezhnost [94]

<u>Answer:</u> The solubility product of silver (I) phosphate is 9.57\times 10^{-10}

<u>Explanation:</u>

We are given:

Solubility of silver (I) phosphate = 1.02 g/L

To convert it into molar solubility, we divide the given solubility by the molar mass of silver (I) phosphate:

Molar mass of silver (I) phosphate = 418.6 g/mol

\text{Molar solubility of silver (I) phosphate}=\frac{1.02g/L}{418.6g/mol}=2.44\times 10^{-3}mol/L

Solubility product is defined as the product of concentration of ions present in a solution each raised to the power its stoichiometric ratio.

The chemical equation for the ionization of silver (I) phosphate follows:

Ag_3PO_4(aq.)\rightleftharpoons 3Ag^{+}(aq.)+PO_4^{3-}(aq.)  

                            3s                  s

The expression of K_{sp} for above equation follows:

K_{sp}=(3s)^3\times s

We are given:  

s=2.44\times 10^{-3}M

Putting values in above expression, we get:

K_{sp}=(3\times 2.44\times 10^{-3})^3\times (2.44\times 10^{-3})\\\\K_{sp}=9.57\times 10^{-10}

Hence, the solubility product of silver (I) phosphate is 9.57\times 10^{-10}

4 0
3 years ago
Do you always have to begin with two compounds in a neutralization reaction
Paladinen [302]

Answer:

Yes.

Explanation:

Only an acidic compound and then a basic compound react(neutralization reaction) to give a salt.

Acid+Base=Salt+Water.

Hope this helps❤❤❤

3 0
3 years ago
The two jovian planets that contain the highest proportions of hydrogen compounds are ___________.
Alona [7]
<span>Jupiter and Saturn The Jovian planets are Jupiter, Saturn, Neptune, and Uranus. Percent hydrogen by volume: jupiter: 89.8% saturn: 96.3% neptune: 80% uranus: 83%</span>
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The enzyme succinyl coa is unique because it contains an iron−sulfur cluster but does not participate in a redox reaction.
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