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3 years ago

I just need answers please!!

Chemistry

2 answers:

otez555 [7]3 years ago

4 0

Answer:

#1 is an organism

#2 is cell

#4 - Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go

evablogger [386]3 years ago

4 0

Answer:

Now i can add a real answer

Explanation:

1: if you think about it you are made up of organs. and then other people will describe yoou as an organism Answer is organism

2:Smallest to biggest= cell-tissue-organ-organism

4:Circulatory/Cardiovascular System through the blood to most parts of the body provides nutrients and oxygen which is needed for our bodies to have ENERGY!

Citation= https://www.joliet86.org/assets/1/6/BODYSYSTEMNotes.pdf

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Which ppower source directs the electrons from oxidation reduction reations to flow through a device to give the device power?

tensa zangetsu [6.8K]

Battery or electrochemical cell

Explanation:

A battery is a power source that directs electrons from oxidation - reduction reactions to flow through a device to give electrical power.

A battery is an electrochemical cell.
Electrochemical cells are devices in which chemical reactions produce an electric current that is, chemical energy is turned into electrical energy.
The reactions here are spontaneous redox reactions, hence electrons flows on its own in an external circuit.

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Battery brainly.com/question/8892837

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3 years ago

Consider the relationship (y+3)2 = b/(x-2), where y and x are variables and bis a constant. On rectangular coordinate paper, wha

Nikolay [14]

Answer:

(-1) is the slope of a graph of In(y+3) on the vertical axis versus In(x-2) on the horizontal axis.

Explanation:

$\frac{(y+3)}{2} = \frac{b}{(x-2)}$

Taking natural logarithm on both the sides:

$\ln [(y+3)]-\ln[2]=\ln [b]-\ln [(x-2)]$

$\ln [(y+3)]=\ln[2]+\ln [b]-\ln [(x-2)]$

$\ln [(y+3)]=\ln {[2\times b]-\ln [(x-2)]$

Slope intercept form is generally given as:

$y=mx+c$

m = slope, c = intercept on y axis or vertical axis

On rearranging equation:

$\ln [(y+3)]=(-1)\times \ln [(x-2)]+\ln {2b}$

y = ln [(y+3)], x = ln [(x-2)], m=-1 , c = ln 2b

(-1) is the slope of a graph of In(y+3) on the vertical axis versus In(x-2) on the horizontal axis.

8 0

3 years ago

Select all that apply:

Katyanochek1 [597]

OPTION B & C are the answers....

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3 years ago

Compared to the nonmetals in Period 2, the metals in Period 2 generally have larger

konstantin123 [22]

The answer is atomic radii; the size or radii of an atom increases from left to right, versus the ionization energies and electronegativities of atoms which increase from right to left.

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3 years ago

The incredible catalytic power of enzymes can perhaps best be appreciated by imagining how challenging life would be without jus

ioda

Answer:

t = 7.58 * 10¹⁹ seconds

Explanation:

First order rate constant is given as,

k = (2.303 /t) log [A₀] /[Aₙ]

where [A₀] is the initial concentraion of the reactant; [Aₙ] is the concentration of the reactant at time, <em>t</em>

[A₀] = 615 calories;

[Aₙ] = 615 - 480 = 135 calories

k = 2.00 * 10⁻²⁰ sec⁻¹

substituting the values in the equation of the rate constant;

2.00 * 10⁻²⁰ sec⁻¹ = (2.303/t) log (615/135)

(2.00 * 10⁻²⁰ sec⁻¹) / log (615/135) = (2.303/t)

t = 2.303 / 3.037 * 10⁻²⁰

t = 7.58 * 10¹⁹ seconds

8 0

3 years ago