John M.

Science Grade 8

02/12/18

The negative ions in two compounds switch places in a double-replacement reaction.

science question about ions

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Chemistry

02/12/18

A sample of an ideal gas has a volume of 2.21 L at 279 K and 1.01 atm. Calculate the pressure when the volume is 1.23 L and the temperature is 299 K.

i need help with my chemistry sapling,so i can pass.

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College Algebra

02/10/18

What are the base and height of the triangle?

Base of triangle is 3 meters longer than the height of the triangle. Area of the triangle is 14 meters

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Biology

02/10/18

Anatomy is the study of structure; physiology is the study of function. The structure of a body part is correlated with the task it performs. The following is a

Anatomy is the study of structure; physiology is the study of function. The structure of a body part is correlated with the task it performs. The following is an example of this... more

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Biology

02/10/18

The lymph nodes add in fighting infection from invading pathogens by:

Biology two question on lymph nodes.

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Math Word Problem

02/10/18

The width of the cabinet

A cabinet has two sliding doors of different sizes. When the cabinet is fully closed, they overlap by two-fifths of the width of the smaller door. When both doors are slid to one side, the part of... more

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Science Physics Calculating Work

02/10/18

Mr. D weighs 125.5 pounds he did 100 push ups the distance he moves is 48.8 centimeters what is the work Mr. D did?

Science unit test and it's confusing me and my friend got different answers

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Math

02/07/18

The measures of the acute angles of a right triangle are in the ratio 5:7

I do not know how to solve this equation pls help The measures of the acute angles of a right triangle.

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Science Chemistry Physics

02/07/18

How do I solve this AP Chemistry problem?

How do I calculate the activation energy for the reverse of the reaction NO(g) +CO(g) ==>NO(g) CO₂(g), given the activation energy for the forward reaction for the forward reaction is 125kJ/mol... more

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Chemistry Orbitals Orbital Designation

02/07/18

Orbital Designation?

n=7 l=5 ml=-4 ms=-1/2

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Math Math Help

02/07/18

If a line has a slope of two it passes through the points (1,2) and (3,y) what’s the value of Y

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Other

02/07/18

Find the angle of the incline.

An inclined plane links Johnstown Pennsylvania to suburban Westmont 504 feet above. Cable cars move up and down an incline 895 feet long. Find the angle of the incline.

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Applications Of Linear Equation

02/07/18

Finding length and width of a rectangle

building rectangle. length of the base is 65 feet less than twice the width. The perimeter of this base is 860 feet. What is the dimension of the ba

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Chemistry

02/07/18

percent yield chemistry

when we do percent yield do we have to find the theoretical yield using the limiting reagent ??

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Chemistry

02/07/18

Ethanol has a density of 0.79g/mL. What is the volume in quarts of 1.50kg of alcohol? (2.7)

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Exponential Growth

02/01/18

A single-cell amoeba doubles every 4 days. How long would it take one amoeba to produce a population of about 10,000 amoebae?

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Word Problem

02/01/18

Math problem see description below

Ms. Quon discovered that 40 students liked soccer, 20 liked basketball, 10 liked football, and 5 liked swimming.1. How many times as many students liked basketball as football? 2. Soccer as... more

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Algebra Word Problem

01/31/18

Flow of water F in cb feet per second can be represented by F=1.26H^3/2 where H is height of the water in meter Find height of water is 10.08 cb feet/ second

The flow of water F in cubic feet per second over a dam can be represented by F=1.26H^3/2 where height is H in meters above the crest of the dam. Find the height of the water if the flow is 10.08... more

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