# A certain first-order reaction has a half-life of 20.0 minutes. How much time is required for this reaction to be 75% complete?

###### Question:

A certain first-order reaction has a half-life of 20.0 minutes. How much time is required for this reaction to be 75% complete?

### What countries are to the west of India

What countries are to the west of India...

### Transition metals have delocalized electrons called an "electron sea." What property does this allow? A. Conducting electricty B. Brittleness C. Forming multiple bonds D. Flammability

Transition metals have delocalized electrons called an "electron sea." What property does this allow? A. Conducting electricty B. Brittleness C. Forming multiple bonds D. Flammability...

### ______ are the basic information that is passed along in DNA that tells cells and molecules how to build an organism and how that organism should behave.

______ are the basic information that is passed along in DNA that tells cells and molecules how to build an organism and how that organism should behave....

### 24) 28 + 3k < 5(–3 – 8k) -4 -3 -2 -1 0 2 3 4 5 6

24) 28 + 3k < 5(–3 – 8k) -4 -3 -2 -1 0 2 3 4 5 6...

### 56 is less than the square of 10 ​

56 is less than the square of 10 ​...

### The most appropriate study design depends, among other things, on the distribution of:______

The most appropriate study design depends, among other things, on the distribution of:______...

### What is the value of x? 24 36 12 Select one: O a. 8 O b. 12 O c. 6 O d.

What is the value of x? 24 36 12 Select one: O a. 8 O b. 12 O c. 6 O d....

### The father is la padrethe mother is la madrethe parents is las padresthen what is the fathers in spanish?

the father is la padrethe mother is la madrethe parents is las padresthen what is the fathers in spanish?...

### PLEASE HELP! A steel ball rolls with constant velocity across a tabletop that is 1.34 m tall. It rolls off and hits the ground .76 meters away from the table. How long was the ball in the air? (Show work) How fast was the ball rolling across the table? (Show work)

PLEASE HELP! A steel ball rolls with constant velocity across a tabletop that is 1.34 m tall. It rolls off and hits the ground .76 meters away from the table. How long was the ball in the air? (Show work) How fast was the ball rolling across the table? (Show work)...

### Calculate the following equation (2.55 -0.7)*4.3

Calculate the following equation (2.55 -0.7)*4.3...

### What was mexico like in the late 1800's??

what was mexico like in the late 1800's??...

### M = –8 no solution m = 8 or –8 m = –4

m = –8 no solution m = 8 or –8 m = –4...

### Eddie and Jane have been dating for two years. They both have been involved in modeling and were both chosen as their high school’s prom king and queen. These similarities represent the A) bystander effect. B) matching hypothesis. C) mere exposure effect. D) cognitive dissonance theory. E) fundamental attribution error.

Eddie and Jane have been dating for two years. They both have been involved in modeling and were both chosen as their high school’s prom king and queen. These similarities represent the A) bystander effect. B) matching hypothesis. C) mere exposure effect. D) cognitive dissonance theory. E) fu...

### However most nearly means:

However most nearly means:...

### 12/7 ÷ 12/7 = ??????????​

12/7 ÷ 12/7 = ??????????​...

### A zookeeper has 858585 treats to divide evenly among 888 seals. The zookeeper divides to see how many treats to give to each seal. The zookeeper will have as few treats left as they can.

A zookeeper has 858585 treats to divide evenly among 888 seals. The zookeeper divides to see how many treats to give to each seal. The zookeeper will have as few treats left as they can....

### How is your dayill give brainliest​

how is your dayill give brainliest​...