which of the following is a chemical change.

A: Separating water into different glasses
B: breaking frozen ice cubes with a hammer
c: running an electric current through water
d: boiling water to evaporate it on a stove.

Answers

Answer 1

Answer:c

Explanation:


Related Questions

Difference between entropy and enthalpy is

Answers

Answer:

Explanation:

Enthalpy is the measure of total heat present in the thermodynamic system where the pressure is constant. Entropy is the measure of disorder in a thermodynamic system.

give the imporntance of having standard funiture in the laboratory​

Answers

Answer:

I guess if there is experiment going on in absence one of those furniture then the experiment isn't successful

What is Interface in computers

Answers

Answer:

An interface could be the design of the homescreen or the way a shell of a computer is designed. I could be wrong tho......

Explanation:

What is a class in CSS?
A.a grouping of HTML tags for which style properties can be declared
B.a selector used to define a unique style
C.a tag used to apply styles to a block of content
D.the part of a declaration describing the type of style to be applied

Answers

I think is B not positively sure tho

Answer:

A grouping of HTML tags for which style properties can be declared

Explanation:

CORRECT

3.3 Code Practice: Question 1
Instructions

Test if a date is a payday based on the day of the month (15th or the 30th).
Sample Run

Enter today's day numerically: 17
Sorry, not a payday.
Enter today's day numerically: 30
It's payday!

please help in python!

Answers

Answer:

date = int(input("Enter today's day numerically: "))

if date == 15 :

 print("It's payday!")

elif date == 30 :

 print("It's payday!")

else:

 print("Sorry, not a payday.");

Explanation:

The program illustrates the use of if-conditions

The program in Python where comments are used to explain each line is as follows:

#This gets integer input for day

day = int(input("Enter today's day numerically: "))

#This checks if day is 50 or 30

if day == 15 or day == 30:

   #If yes, this prints payday

   print("It's payday!")

#If otherwise

else:

   #If otherwise, this prints not a payday

   print("Sorry, not a payday.")

At the end of the program, the program outputs payday or not a payday; depending on the input from the user

See attachment for sample run

Read more about Python programs at:

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How can you crop a photo in PowerPoint?

Answers

Answer:

Yea

Explanation:

jus click on the image and it should give you the option to crop it :)

Yes by clicking on the picture and selecting crop image

The text help readers understand the relationship between gender and sports?THESE PUMPKINS SURE CAN KICK!

Answers

Answer:

What's the question?????I don't understand

What does the measurement tell you?

Estimate at completion

Answers

Answer:

forecasted cost of the project, as the project progresses/"The expected total cost of completing all work expressed as the sum of the actual cost to date and the estimate to complete." - PMBOK Guide

Explanation:

Measurement tells u the accurate measure of something

INTERNET SAFETY RULES

Answers

Do you need help with basic Internet safety? i’ll help you in the comments if that’s what you need?

Answer:

1. Keep Personal Information Professional and Limited

2. Keep Your Privacy Settings On

3. Practice Safe Browsing

4. Make Sure Your Internet Connection is Secure. Use a Secure VPN Connection

5. Be Careful What You Download

6. Choose Strong Passwords

7. Make Online Purchases From Secure Sites

8. Be Careful What You Post

9. Be Careful Who You Meet Online

10. Keep Your Antivirus Program Up To Date

Write a program that prompts the user to input two POSITIVE numbers — a dividend (numerator) and a divisor (denominator). Your program should then divide the numerator by the denominator, and display the quotient followed by the remainder.Hint: If you use division (/) to calculate the quotient, you will need to use int() to remove the decimals. You can also use integer division (// ), which was introduced in Question 10 of Lesson Practice 2.3.Once you've calculated the quotient, you will need to use modular division (%) to calculate the remainder. Remember to clearly define the data types for all inputs in your code. You may need to use float( ) , int( ), and str( ) in your solution.float( ): Anything inputted by a user should be transformed into a float — after all, we are accepting ALL positive numbers, integers and those with decimals.int( ): When you divide the numerator and the divisor using /, make sure that the result is an integer.str( ): After using modular division, you can transform the quotient and remainder back into strings to display the result in the print() command.

Answers

Answer:

did you end up getting an answer

Explanation:

TCP is a more dependable protocol than UDP because TCP is_____ latent/connectionless/connection-oriented/encapsulated

Answers

Answer:

connection-oriented

Explanation:

Answer:

TCP is a more dependable protocol than UDP because TCP is

connection-oriented

Explanation:

Because I took a guess and that was the  

Bernie is an aspiring video game developer. Learning which of the following software would benefit him the most?

A. Computer-aided design software

B. Sampling software

C. 3-D animation software

D. System software

Answers

Answer:System Software

Explanation:

3-D animation software is for 3d animation

Sampling software is for audio

Computer aided design is an artistic media

A video game developer is is a software developer and is specialized in video game development. It relates to the creation of video games. The video game publisher have maintained a studio. And it involves 3rd party developer.

For making the games he needs 3D animated software such as shade 3D or K-3D. In order to make the game he needs to have all automation software that provides him the visual effects.

Hence the option C is correct.

Learn more about the aspiring video game developer.

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What’s command do we use to update a file on MySQL?

Answers

Answer:

The MySQL update command/query is used to update existing records in a table in a MySQL database.

Class description: A MyString class should behave much like the c++ string class. The class should use a dynamically allocated char array to hold a character string. If the amount of memory allocated to the array is too small to complete some necessary task (e.g., assigning a new character string to the object) the object should automatically double its capacity until it is large enough to complete the task. If it's discovered that the object is using less than 25% of its capacity the object should shrink to half its capacity until it is using more that 25% of its capacity.
Assignment: Implement the MyString class using a header and implementation file named MyString.h and MyString.cpp respectively. Even though MyString.h will be provided on the upload site, create own version for testing code locally. Make sure to properly test code on by creating a test driver that fully tests every function created in the MyString class
Memory Requirements: MyString should start with 10 bytes of allocated memory and should grow in size by doubling. So, we should be able to predict the capacity of MyString as acquiring a patten of 10, 20, 40, 80, ⦠bytes of memory depending of the number of characters stored.
Attributes:
int size â the number of characters currently stored in the string object. Do NOT count the NULL character.
int capacity â the number of bytes currently allocated. This should always be at least size + 1. The extra byte is needed to store the NULL character.
char *data â character pointer that points to an array of characters.
Member Functions:
MyString( ) Constructor
MyString(const char *) Constructor with an initialization character string
~MyString( ) Destructor
MyString(const MyString &) Copy constructor
MyString& operator = (const MyString&) Overloaded assignment operator, make a copy of MyString object
bool operator == (const MyString&) const overloaded equivalence relational operator
char& operator [ ] (int) overloaded [ ] should return a char by reference
void operator += (const MyString&) overloaded += operator, use to concatenate two MyStrings
MyString operator + (const MyString&) const Create a new MyString object that is the concatenation of two MyString objects
void getline(istream&, char delimit = â\nâ); reads an entire line from a istream. Lines are terminated with delimit which is newline â\nâ by default
int length( ) const; return the length of the string
friend ostream& operator<< (ostream&, MyString&); overloaded insertion operator

Answers

You should do 40 points for this

____ is NOT an effective way to do research about a job you want.

Answers

Answer:

I would say that asking your friends is probably not a good way to research for a job.

Explanation:

It would definitely be helpful to talk to someone who already works at the job you want. Researching the company or job online is a good way to learn about them. And a guidance counselor can usually help point you in the right direction of what you'd like to know.

Compare a Wi-Fi hotspot with a cybercafé.

Answers

Answer:

A WiFi Hotspot is a wireless internet connection that allows a computer, smartphone, or any other internet-enabled devices to connect to internet access points.

A cybercafe refers to any business place that allows people to access the internet usually within its premises after paying for connection access to connect to it.

Explanation:

ASAP.
13. How do distracters impact your study time? They cause you to lose focus and lose time. They make studying almost impossible. They cause you to lose focus and that results in lower grades. They make you drowsy and distracted.​

Answers

Answer:

A

Explanation:

You could pick any answer and make a case for it. It depends on what you have been told.

I would pick A but I wouldn't be surprised if the answer isn't the last one.

Write a program that calculates and displays the amount ofmoney available in a bank account that initially has $8000 deposited in it and that earns interest atthe rate of 2.5 percent a year. Your program should display the amount available at the end of eachyear for a period of 10 years. Use the relationship that the money available at the end of each yearequals the amount of money in the account at the start of the year plus 0.025 times the amountavailable at the start of the year [20 points].

Answers

Answer:

Written in Python

import math

principal = 8000

rate = 0.025

for i in range(1, 11):

    amount = principal + principal * rate

    principal = amount

    print("Year "+str(i)+": "+str(round(amount,2)))

Explanation:

This line imports math library

import math

This line initializes principal amount to 8000

principal = 8000

This line initializes rate to 0.025

rate = 0.025

The following is an iteration from year 1 to 10

for i in range(1, 11):

    This calculates the amount at the end of the year

    amount = principal + principal * rate

    This calculates the amount at the beginning of the next year

    principal = amount

    This prints the calculated amount

    print("Year "+str(i)+": "+str(round(amount,2)))

What were the first computers made

Answers

Answer:

In 1943 he ENIAC computing system was built by John Mauchly and J. Presper Eckert

Explanation:

Answer:

ENIAC (Electronic Numerical Integrator and Computer)

how do you write 4 copies of 3 tenths in standard form

Answers

Answer:

four copies of three tenths

Explanation

just like you did it but its all in words

four copies of three tenths

just right it out

Hands-On Project 15-4 Make Network Cables
Using the tools and skills you learned about in this chapter, practice making a straight-through cable and a crossover cable. Use a cable tester to test both cables. Answer the following questions:
1. Which wiring standard did you use for the straight-through cable? List the pinouts (pin number and wire color) for each of the eight pins on each connector.
2. Will your crossover cable work on a Gigabit Ethernet network? List the pinouts (pin number and wire color) for each of the eight pins on each connector.

Answers

Answer:

1. You can use either standard (T-568A or T-568B) - but must keep the standard throughout the installation (can't mix A with B).

The B standard is preferred in the US.  A is mostly used overseas (Europe)

For A the proper wiring sequence is:

1 - Orange/White

2 - Orange

3 - Green / White

4 - Blue

5 - Blue / White

6 - Green

7 - Brown / White

8 - Brown

2. Cross over connections use a different pinout for one side of the cable.  The second side is wired normally.

Crossover connections are only used for device to device connections.  ( as in the case of connecting two NIC cards together directly).  They will not work if plugged into a switch or other network device.

Normal side - use the pinout from question #1

Crossover side:

1 Green / White

2 Green

3 Orange / White

4 Brown / White

5 Brown

6 Orange

7 Blue

8 Blue / White

Explanation:

what is an operating system​

Answers

Answer:

Explanation:

Online Dictionary defines 'Operating System' as "the software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.''

Hope this helps!

Why was the newspaper readership the highest in 1995?

Answers

Because more people read the news paper back then
Because not everyone could afford a computer and because newspapers were more easy and accessible to get

Is a i5 2400 and a GeForce GTX 1060 6GB bottlenecking?

Answers

Answer:

In terms of memory, the GTX 1060 6GB 's 6144 MB RAM is more than enough for modern games and should not cause any bottlenecks. This combination between GTX 1060 6GB and Intel Core i5-2400  3.10GHz has less than 15% bottleneck in many games and can cause minor FPS loss.

Explanation:

i wish i had one of these lol

Answer:

Yes very Much

Explanation:

Please No

It is common practice not to store user’s password in clear text. However, if an attacker has seized control of the password database, he is likely already capable of modifying any user data on the site as an administrator. Why bother hashing the passwords then?

Answers

Answer:

To prevent leakage of user's passwords.

Explanation:

I don't really know the premise of your question, but I assume it is this. If the hacker has access to the user's data, they may have the email address. If they cannot crack the password hash, then they may not attempt to login to the user's accounts on other websites.

Give 2 bennifits of expert system

Answers

Answer:

Provide answers for decisions, processes and tasks that are repetitive.

Hold huge amounts of information.

Minimize employee training costs.

Centralize the decision making process.

Make things more efficient by reducing the time needed to solve problems.

here are a few

hope it helps : )

Create a Python file named num_sum.py that contains: The definition of two functions: volume - accepts three parameters and returns the product of them, but displays nothing sum_of_nums - accepts 1 or more numbers and returns their sum, but displays nothing A print function call that includes a call to volume, passing 2, 3, and 4 A print function call that includes a call to sum_of_nums, passing 1, 2, 3, 4, and 5 Submit the Python program and screenshot. Following is an example showing how your screenshot might look:

Answers

Answer:

def volume(n1, n2, n3):

   product = n1 * n2 * n3

   return product

   

def sum_of_nums(*args):

   total = 0

   for n in args:

       total += n

       

   return total

   

print("The product: " + str(volume(2, 3, 4)))

print("The sum: " + str(sum_of_nums(1, 2, 3, 4, 5)))

Explanation:

Create a function called volume that takes three parameters, n1, n2, n3

Multiply the n1, n2, n3 and set it to product

Return the product

Create a function called sum_of_nums that takes *args as parameter (Since the function may take one or more arguments, we may use *args)

Initialize the total as 0

Create a for loop that iterate through args. Add each number to the total (cumulative sum)

When the loop is done, return the total

Call the functions with given numbers and print the results

*See the output in the attachment.

Which design principle involves mentally dividing up an image with two horizontal lines and two vertical lines

Answers

Answer:

the answer is Rule of thirds

Rule of thirds involves mentally dividing up an image with two horizontal lines and two vertical lines

The rule of thirds is a creation decide that places the subject in the left or right third of an image, leaving the other 66% more open. While there are various sorts of synthesis, the norm of thirds all around prompts persuading and particularly made shots. The Rule of Thirds puts your subject on the left-third or right-third of the edge, making a delightful synthesis.

Rule of thirds involves mentally dividing up an image with two horizontal lines and two vertical lines.

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Write two statements that each use malloc to allocate an int location for each pointer. Sample output for given program:

Answers

Answer:

In the following code, you can see the usage of malloc.

#include <stdio.h>

#include <stdlib.h>

int main(void) {

  int* numberPointer1 = NULL;

  int* numberPointer2 = NULL;

  numberPointer1 = (int *)malloc(sizeof(int *));

  numberPointer2 = (int *)malloc(sizeof(int *));

  *numberPointer1 = 44;

  *numberPointer2 = 99;

  printf("numberPointer1 = %d, numberPointer2 = %d\n", *numberPointer1, *numberPointer2);

  free(numberPointer1);

  free(numberPointer2);

  return 0;

}

Explanation:

Malloc allocates memory in the heap according to the input size and returns a pointer to the location where it was allocated, with an extra, it clears all allocated space.

When programming, the word "execute" means which of these?
to kill
to edit
to run
to revise

Answers

Answer:

to run!

Explanation:

hope this is helpful!

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