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4 years ago

Which is the correct way to represent 0.0035 kg by using scientific notation?

Chemistry

2 answers:

My name is Ann [436]4 years ago

8 0

The correct way to represent 0.0035 kg by using scientific notation is 3.5 x 10^-3 kg.

lisabon 2012 [21]4 years ago

6 0

35 x 10^-4...Good Luck

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analyze why is the result of the stage of meiosis shown below an advantage for organisms that reproduce sexually.

patriot [66]

Answer:

Meiosis produces haploid cells (gametes), which contain single chromosomes, or on-half the number of chromosomes in diploid cells. When a sperm and an egg join, the single chromosomes pair up, which results in genetic diversity in the offspring

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3 years ago

A voltaic cell that uses the reaction PdCl2−4(aq)+Cd(s)→Pd(s)+4Cl−(aq)+Cd2+(aq) has a measured standard cell potential of +1.03

Ghella [55]

Answer : The balanced two-half reactions will be,

Oxidation half reaction : $Cd(s)\rightarrow Cd^{2+}(aq)+2e^-$

Reduction half reaction : $Pd^{2+}(aq)+2e^-\rightarrow Pd(s)$

Explanation :

Voltaic cell : It is defined as a device which is used for the conversion of the chemical energy produces in a redox reaction into the electrical energy. It is also known as the galvanic cell or electrochemical cell.

In the voltaic cell, the oxidation occurs at an anode which is a negative electrode and the reduction occurs at the cathode which is a positive electrode.

The given redox reaction is:

$PdCl_4^{2-}(aq)+Cd(s)\rightarrow Pd(s)+4Cl^-(aq)+Cd^{2+}(aq)$

The balanced two-half reactions will be,

Oxidation half reaction : $Cd(s)\rightarrow Cd^{2+}(aq)+2e^-$

Reduction half reaction : $Pd^{2+}(aq)+2e^-\rightarrow Pd(s)$

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3 years ago

A line graph shows the relationship between three variables true or false

Nookie1986 [14]

The answer would be B) False cause a line graph only shows ''two'' variables, not three.

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3 years ago

Read 2 more answers

Explain why the first ionisation energy of krypton is greater then the first ionisation energy of bromine

MrMuchimi

Answer:

Kr has one more electron than br and so, the nuclear charge increase, which means the nuclear attraction between the nucleus and outer most electron will increase and so will be harder to remove the electron from Kr than Br, so Kr has higher 1st ionisation.

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3 years ago

What kind of bond is ca-br

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