Darryl

This page lists questions and answers that were posted by visitors named Darryl.

Questions

The following questions were asked by visitors named Darryl.

what is the fizzy gas called when you mix carbenit with acid?

How much heat is gained in joules by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 12 C

14 years ago

In the reaction: MnO2 + 4 HCl ---> MnCl2 + Cl2 + 2 H2O Calculate: The volume of Cl2 produced from the reaction of 10 grams of HCl with excess MnO2?

14 years ago

Calculate the weight of ethane, C2H6 (MWT = 30g/mole), required to produce a pressure of 1520 mm at 20 degrees C when contained in a 9.00 liter vessel. How many moles of ethane is it?

14 years ago

Solve: 3x-2y=10 2x+3y=-2 Graph: Substitution: Elimination: Show Your work! (I can'tfigure out how to graph it and when i used substitution and elimination it came out with two different anwsers. I need help! and i need to be able to show my work!)

14 years ago

Jenny has twice as many cookies as Penny. Winnie has four more cookies than Jenny. If they have 44 cookies altogether, how many cookie does Penny have? Write a number sentence

11 years ago

what is the margin of error for a simple random sample of 900 people with a standard deviation of 13.5 at 95% level of confidence How do you write this question in the right formula, please? I believe I can calculate the problem, I don't know how to write...

11 years ago

Sean walk 3/4 of a mile in 15 minutes. At that same pace, how far, in miles, can Sean walk in 1 hour and 20 minutes?

8 years ago

Jaine spent 2/5 of the money in his wallet on a sweat. After purchasing the sweater he had 25.32 leftover. What was the total amount he spent on the sweater?

8 years ago

2/3m-6.5=0.7

8 years ago

Martin has a vegetable garen that is 8 feet long and 5 feet wide. Next years he want to increase both the length and width of the garden by 15%. What will the dimensions of the garden be next year? Length __________ feet Width_____________ feet

8 years ago

Calvin height at the end of 2015 was 4 feet 2 inches. At the end of 2016, Calvin is now 4 feet 5 inches tall. By what percent did calvins height increase from 2015 to 2016?

8 years ago

The temperature at 5 am was -28 degrees F. The temperature at 2pm was 17 degreesf. If the temperature changed at a constant rate from 5am to 2pm what was the temperature at 6am?

8 years ago

Crystal buy headphones that are on sale with a 40% discount. If she paid $24 for the headphones with the discount, what is the full price of the headphones?

8 years ago

darry and nay eat dinner at a restaurant with 6% sales tax. They leave an 18% tip on the pre tax amount of the bill. If they paid a total of 37.20, what was their pre tax bill?

8 years ago

the points A,B,C,D,and E are evenly spaced, what is the point of A and C on the number line __(a)___(b)-2.83_____c___d___(e)1.64

8 years ago

Jada, Lin, and Elena are saving for a trip. Together they saved $120. Jada save$20 less than lin. Lin saved 3 time as much as elena.

8 years ago

Jada, Lin, and Elena are saving for a trip. Together they saved $120. Jada save$20 less than lin. Lin saved 3 time as much as elena.Write and expression to represent the total amount of money they saved.

8 years ago

Diegos class planning a field tripfor 25 students.They will go to aquarioum and then to science museum. Each ticket for science cost $2 more than each ticket to aquarium. Lunch for each student is $5 additional. Write and expression for total cost of trio...

8 years ago

A group of students volunteers at the animal it helping feeds the dogs. Each day small dogs eat 1/2 cup less dog food than medium sized dogs and large dogs eat 3/4 cup more dog food than the medium sized dogs. The shelter currently has 22 small dogs, 14 m...

8 years ago

Research the contributions from these two scientists and read about how Avogadro’s number got its name. Briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rational...

7 years ago

Answers

The following answers were posted by visitors named Darryl.

Hasan made a modelfor 437 using 4 hundreths,3 tens, and 7 ones. What are two other ways he could show 437 using base-ten blocks?

15 years ago

Thank You...I got 22.5g and .75 moles...Is this correct???

14 years ago

$5.00 -3.79 Cost of tennis balls ------- $2.21 answer $10.00 - 6.88 -------- $3.12 Answer

11 years ago

THANK YOU

11 years ago

Write a list of steps that are needed to find the measure of ∠B. Write a list of steps that are needed to find the measure of ∠B. Write a list of steps that are needed to find the measure of ∠B. Write a list of steps that are needed to find the measure of...

8 years ago

Tammy mixes the letters S, C, H, O, O, and L thoroughly. Without looking, Allen draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that Allen will not select a consonant? Tammy mixes the letters S, C, H, O, O, and...

8 years ago

What is the probability of selecting a purple marble and then a white marble? What is the probability of selecting two white marbles? Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work. What is...

8 years ago

Hallie is trying to win the grand prize on a game show. Should she try her luck by spinning a wheel with 6 equal sections labeled from 1 to 6 and hope she gets a 5, or should she roll two number cubes and hope she gets the same number on both cubes? Expla...

8 years ago