1.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element that reacts with water to produce a lilac flame
2.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element used as an inert atmosphere
3.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element that has a valency of 3
4.Write a balanced chemical equation for the reaction between potassium and water. (Non-anonymous question). .
(1 Point)
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5.For each of the following, give the name of an element from Period 4 (potassium to krypton), which matches the description.
Elements may be used once, more than once or not all.. Single line text.
(1 Point)
an element with a fixed valency of 2 that not is not in group 2
Answer:
Following are the python code to print the given pattern:
print('FOURTH') # using print method
for i in range(10): #using loop to count numbers
for j in range(10-i): # use loop to print asterisk value in reverse order
print("*", end=" ") #print value
print("") #using print method for space
Output:
Please find the attachment.
Explanation:
The description of the above python program can be described as follows:
- In the first line, use the print method, that print message "FOURTH".
- In the next line, two for loop is used in which the first loop counts the number to be print value, inside the loop another for loop is used.
- In this loop, it prints asterisk values in its reverse order and for new lines, it will use the print method with a single white space.
The CPU executes arithmetic and logic operations in the arithmetic and logic unit (ALU).
<h3>What is an ALU, or an arithmetic and logic unit?</h3>
- A combinational digital circuit known as an arithmetic logic unit computes arithmetic and bitwise operations on integer binary integers.
- A floating-point unit, on the other hand, works with floating-point numbers.
- The component of a central processing unit known as an arithmetic-logic unit performs arithmetic and logic operations on the operands in computer instruction words.
- An Arithmetic Logic Unit (ALU) is a component found within computers that can execute logical operations in addition to arithmetic operations, such as AND, OR, Ex-OR, invert, etc (e.g. Addition, Subtraction, etc.).
To learn more about arithmetic and logic unit (ALU), refer to:
brainly.com/question/7994884
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The toll program illustrates the use of conditional statements;
As a general rule, conditional statements are used to make decisions
<h3>The
toll program</h3>
The toll program written in Python where conditional statements are used to make several decisions is as follows:
def calc_toll(hour, morning, weekend):
toll_fee = 0
if weekend == False:
if morning == True:
if hour < 7:
toll_fee+=1.15
elif hour < 10:
toll_fee+=2.95
elif hour <= 12:
toll_fee+=1.90
else:
if hour < 3:
toll_fee+=1.90
elif hour < 8:
toll_fee+=3.95
elif hour >= 8:
toll_fee+=1.40
else:
if morning == True:
if hour < 7:
toll_fee+=1.05
elif hour <= 12:
toll_fee+=2.15
else:
if hour < 8:
toll_fee+=2.15
elif hour >= 8:
toll_fee+=1.10
return toll_fee
Read more about conditional statements at:
brainly.com/question/24833629
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Access to 4 gigabytes of memory
