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algol13
3 years ago
10

A car travels at a speed of 54 km/hr. How many meters will it travel in 1 second?

Chemistry
2 answers:
Lostsunrise [7]3 years ago
6 0

Answer: 15 METERS IN A SECOND

Explanation: 54km = 54000m    54000m / 60 = 900    900/60 = 15

makkiz [27]3 years ago
4 0
15 meters a second is the correct answer
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d. Fe(s) and Al(s)

<h3>Further explanation</h3>

In the redox reaction, it is also known  

Reducing agents are substances that experience oxidation  

Oxidizing agents are substances that experience reduction

The metal activity series is expressed in voltaic series  

<em>Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au  </em>

The more to the left, the metal is more reactive (easily release electrons) and the stronger reducing agent  

The more to the right, the metal is less reactive (harder to release electrons) and the stronger oxidizing agent

So that the metal located on the left can push the metal on the right in the redox reaction  

The electrodes which are easier to reduce than hydrogen (H), have E cells = +

The electrodes which are easier to oxidize than hydrogen have a sign E cell = -

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The metal  : d. Fe(s) and Al(s)

7 0
3 years ago
Write the word equation for the chemical reaction: Zn(s)+2HCl2(aq)---&gt;ZnCl2(aq)+H2(g)
Vikki [24]
Zn(s) + 2HCl(aq) = ZnCl₂(aq) + H₂(g)

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4 0
3 years ago
A student creates a model that displays a cross-section of a metal wire wrapped in plastic insulation. Which statement best desc
artcher [175]

Cross-section of a metal wire wrapped in plastic insulation the metal wire is an element.

<h3>What is an element?</h3>

An element is a substance or material that cannot be affected by an external substance or cannot be broken down by any reaction.

Metal wire is serving as an element, it should not be easily broken or penetrated as an insulator.

Therefore, Cross-section of a metal wire wrapped in plastic insulation the metal wire is an element.

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brainly.com/question/18096867

7 0
2 years ago
Three things about the body systems?
makvit [3.9K]

Answer:

Three things about our body's systems:

All systems have a method of self-regulation or exogenous regulation by other systems.

All systems have a balance in their functions.

All the systems of our organism are intertwined with each other thus giving general vitality.

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Best known systems:

Renal, respiratory, circulatory, cardiac, nervous, immune, blood, muscular systems.

All of them include the participation of one or more organs

5 0
3 years ago
The rate constant for the second-order reaction: 2NOBr(g) → 2NO(g) + Br2(g) is 0.80/(M · s) at 10°C. Starting with a concentrati
a_sh-v [17]

Answer : The concentration of NOBr after 95 s is, 0.013 M

Explanation :

The integrated rate law equation for second order reaction follows:

k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)

where,

k = rate constant = 0.80M^{-1}s^{-1}

t = time taken  = 95 s

[A] = concentration of substance after time 't' = ?

[A]_o = Initial concentration = 0.86 M

Now put all the given values in above equation, we get:

0.80=\frac{1}{95}\left (\frac{1}{[A]}-\frac{1}{(0.86)}\right)

[A] = 0.013 M

Hence, the concentration of NOBr after 95 s is, 0.013 M

4 0
3 years ago
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