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Andre45 [30]
3 years ago
6

Chemical reaction to metal​

Computers and Technology
1 answer:
NeX [460]3 years ago
5 0

Answer:

Metals can react with water, acid and oxygen. The reactivity of the metal determines which reactions the metal participates in.

Explanation:

In general, acids react with metals to give salt and release hydrogen gas. In general, bases do not react with metals and release hydrogen gas.When metals react with other substances, the metal atoms lose electrons to form positive ions .

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Given four inputs: a, b, c & d, where (a, b) represents a 2-bit unsigned binary number X; and (c, d) represents a 2-bit unsi
Amiraneli [1.4K]

Answer:

z = a.c' + a.b.d' + b.c'.d'

Explanation:

The truth table for this question is provided in the attachment to this question.

N.B - a' = not a!

The rows with output of 1 come from the following relations: 01 > 00, 10 > 00, 10 > 01, 11 > 00, 11 > 01, 11 > 10

This means that the Boolean expression is a sum of all the rows with output of 1.

z = a'bc'd' + ab'c'd' + ab'c'd + abc'd' + abc'd + abcd'

On simplification,

z = bc'd' + ab'c' + ac'd' + ac'd + abc' + abd'

z = ac' + abd' + bc'd'

Hope this helps!

6 0
3 years ago
Which activity represents a violation of the licensing agreement?
Lena [83]
A) <span>unauthorized duplication of software </span>
6 0
3 years ago
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Given an integer variable count, write a statement that displays the value of count on the screen. Do not display anything else
Irina-Kira [14]

Answer:

cout<<count;

Explanation:

The above statement is in c++ which display the value of count .The cout statement is used in c++ to print the value on console .

Following are the code in c++

#include <iostream> // header file

using namespace std; // namespace

int main() // main method

{

   int count=90; // count variable

   cout<<count; // display the value of count

   return 0;

}

Output:

90

In this program we have declared a count variable of integer type which is initialized by 90 and finally displays the value of count on the screen.

4 0
3 years ago
14. Emelia is very concerned about safety and has conducted a study to determine how many bike helmets were replaced at each loc
damaskus [11]

Answer:

Explanation:

Known Variables A = max Daily Rentals

X = Damaged helmets %

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412 = B - (B*13/100)

412 = (100B-13B)/100

412*100 = 87B

B= 412*100/87

Hence, the generic formula becomes : B= A*100/(100-X)

Applying the same formula for each row and then using ROUND function of excel to round off the digits

=ROUND(number,digits) where number is the number you would like to round off and the digits is the number of decimal digits for it to round off. Since we want natural numbers in our example, we will be using digits as 0.

Explanation:

See attached pictures also.

5 0
4 years ago
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A flashlight bulb uses 2.4 W of power when the current in the bulb is 0.8 A. What is the voltage difference?
Alinara [238K]

Answer:

3 Volts.

Explanation:

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3 years ago
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