# Posts by wesley

Total # Posts: 51

**science**

1. Liquid phosphorus trichloride, PCl3 is made by the direct combination of phosphorus and chlorine. a. What is the maximum mass of PCl3 that can be produced from 125 g of P4 and 323 g Cl2? b. What mass of P4 remains after the reaction?

**sciences**

1. Liquid phosphorus trichloride, PCl3 is made by the direct combination of phosphorus and chlorine a. What is the maximum mass of PCl3 that can be produced from 125 g of P4 and 323 g Cl2? b. What mass of P4 remains after the reaction?

**sciences**

Billions of kilograms of urea, are produced annually for use as a fertilizer. The reaction used is given below. NH3(g) + CO2(g) → CO(NH2)2(s) + H2O(l) The typical starting reaction mixture has a 3:1 mole ratio of NH3 to CO2. If 47.7 g urea forms per mole of that reacts, ...

**sciences**

When heated with sulfuric or phosphoric acid, cyclohexanol, C6H11OH is converted to cyclohexene, C6H10. The balanced chemical equation for the reaction is shown below. C6H11OH(l) → C6H10 (l) + H2O(l) If the percent yield is 83%, what mass of cyclohexanol must we use to ...

**Economics**

1. According to the data table below, what is the unemployment rate?: Total Population: 1,500 Population under 16 or institutionalised: 360 Not in the labor force: 450 Unemployed: 69 Workers with part-time work who want full-time: 30 A. 10% B. 11% C. 8.4% D. 6.9% E. 14% 2. ...

**Chemistry**

The combustion reaction of propane is described by the reaction. C3H8 + 5O2 → 4H2O + 3CO2. How many moles of O2 are required to generate 3 moles of CO2? 2.5 moles 3 moles 4 moles 5 moles

**English**

please correct this pigin-How many years i take senior you.

**biology**

what is the mode of nutrition,habitat, economic importance, classifications scientific name, observable features and adaptation of an earthworm.

**agriculture**

what is the scientific name of earthworm, classification, habitat, economic importance,observable features, adaptation.

**math**

X is a point 2800 m East of Y. Due North of X is another point Z whose bearing from Y is N63°E. P is due North of Y and its bearing from X is N25°W. Calculate XZ and XP (give your answers to four significant figures)?

**math**

Houses are arranged in a school compound. Thus, Blue house is 4 km due East of Red, Yellow is 3 km due South of Blue and Green is 4 km on a bearing of 230° from the Yellow. What is the distance and bearing of the Red house from Green house?

**math**

A road runs from P to Q on a bearing of 140° and continues in the same direction. The bearings of R from P are 092° and 056° respectively, PQ is 1320 m. What is the shortest distance of R from the road?

**Physics**

A 175-N box is placed on an inclined plane that makes a 20.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

**math**

jk lol

**math**

31 1/3 duh! i don't even watch football! it was homework for me

**grammar**

He and his wife

**physics**

What is the pressure exerted on the ground by a cube which has a weight of 600N and a side of 1m2

**Maths**

Your change from R50,if you spend y rand

**Chemistry**

calculate the amount of heat required to decompose 8 mol of NaHCO3(s) 2NaHCO3(s) + 94000 J = Na2CO3(s)+ H2O(g) + CO2(g)

**math**

12

**chemistry**

In my organic lab, we synthesized synthetic banana oil. I'm asked what gas escaped during the sodium bicarbonate washing and to write two reactions that took place during that operation. I know carbon dioxide escaped but I don't know how to write out the formulas.

**life orientation**

5 ways in whuch environmental or human factors affect the environment

**math**

On an air track, a 403.0 glider moving to the right at 1.70 collides elastically with a 500.5 glider moving in the opposite direction at 3.00 . 1. Find the velocity of first glider after the collision. 2. Find the velocity of second glider after the collision.

**Physics**

On an air track, a 403.0 glider moving to the right at 1.70 collides elastically with a 500.5 glider moving in the opposite direction at 3.00 . 1. Find the velocity of first glider after the collision. 2. Find the velocity of second glider after the collision.

**math**

The temperature was 30 colder at midnight than it was at noon. If it was 15 C at midnight, what was the temperature at noon?

**Consumer math**

And I have no idea what it is

**Economics**

Here goes... 1. Consider a model in which an individual lives two periods: this period (time one) and next period (time two). This period his budget constraint requires that his consumption, c1; plus his saving, s; equals his income, y1: c1 + s = y1: Next period his budget ...

**math**

Pre Algebra Questions Sketch a model and obtain the sum. 3 + (-7)

**Calculus**

These are the two problems from my homework I don't get.. can you help me? A: y=2x-x^3 [0,1] use the limit process to find the area of the region between the graph of the function and the x-axis over the given interval. Sketch the region B: f(x)=4-(12/(x^2))Calculate the ...

**physics 12**

a 1kg satellite has an orbital period of 4 hours. what's the altitude?

**physics 12**

A satellite has an orbital period of 4 hours. what is the altitude? thanks.

**Science**

How to create an organism, using CYCLO, Ocular and PLAST

**Math**

During a 220 meter relay race, Jack begins at the starting line and runs for 4 minutes and then passes the baton to Jill. She runs for 3 minutes and finishes the race. If Jack can run 20 meters per minute faster than Jill, then what is Jack's rate of speed?

**Grammar**

My aunt works at Woods Hole as a scientist. What are the nouns in the sentence? Is is aunt, Woods hole and scientist?

**grammar**

What is simple predicate? Its legs make it one of the world's fastest insects. Would it be make?

**grammar**

Simple predicate? The history of these pests may surprise you. Would it be may?

**Grammar**

What is simple predicate? These insects are strange and amazing creatures. Would it be are?

**grammar**

What would be the simple predicate? The insects' bodies can turn wood into food. I think it would be turn.

**Physical Science-Sould you please check my explana**

Scientists have tried to define precisely the _____ since the metric system was introduced

**physics**

A ball is thrown vertically upward with a speed of 27.6 m/s. How high does it rise? Answer in units of m.

**8th grade**

2/5 divided by 5/6

**chemistry**

Rolaids consumes 47 times its weight in excess stomach acid. Can this be tested using quantitative measurements?

**ap chemistry**

A star is estimated to have a mass of 2 X 10^36 kg. Assuming it to be a sphere of average radius 7.o X 10^5 km. Calculate the average density of the star in units of grams per cubic centimeter

**Algebra**

Mack is 3 times as old as Justin. In 3 years, Mack's age will be 5 more years more than 2 times as old as Justin. How old are Mack and Justin? What is the system of equation for this? I got 3x=7 and x=5+2y. But it's wrong because, I ended up with negatives. Help! Thx.

**Com 220**

Hi, I am writing a sentence outline on the subject of World War II; more precisely, the events that led to the war. I am somewhat confused on how to do this on the parts that I need to state and support the argument as well as prepare against any rebuttals or objections. I ...

**biology**

can you explain the differences and similarities between the energy cycles of human cells, plant cells, and yeast cells?

**physical fitness**

the ability of muscles to work over time is called what? the comparison of the weight of your fat to the weight of your muscles, bones, and joints is called?

**algebra**

without graphing classify each system as independent, dependent, or inconsistent. -2x-y=9 3x-4y=-8

**math**

how to add and subtract fractions

**analogies**

consternation;fear

**analogies**

skill is to prowess consternation;fear orbit;planet fire;smoke journey;destination

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