Robert S.

05/20/21

what is the slope for (4,0) and (3,3)

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Answers •1

05/20/21

Practice #5- limiting reactant in grams

Which is the greatest amount of silicon tetraflouride in grams that can be produced 48 grams of HF and 92 grams of SiO2? Which reactant is limiting? How many grams of the excess reactant will be... more

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Answers •1

Precalculus

05/20/21

The value of r is varying at a constant rate of change with respect to s.

The value of r is varying at a constant rate of change with respect to s.Complete the following table. s (value of the independent quantity) r (value of the dependent... more

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Answers •1

Algebra 1

05/19/21

Quadratic written into standerd form

I'm not sure how to do this problem and if you know how to do this please helpy=9(x+3)^2+6Thanks if you can help

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Answers •1

Chemistry

05/19/21

You reacted 83.17 g of K with S to produce K2S. At the end of the experiment, you have 91.34 g of K2S. What is your theoretical and percent yields? 2 K + S → K2S

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Answers •1

Chemistry

05/19/21

Mole ratiosssssss

Identify the mole ratios derived from the following chemical equations.(Make sure that the formula equations are complete and balanced) Magnesium + lithium bromide -------->

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Answers •1

Chemistry

05/19/21

Cu+2AgNO3→2Ag+Cu(NO3)2 BCA table

If I have 33.4 g of copper reacting with 112.4 g of AgNO3, how many grams of Ag form?Is Cu the limiting factor since it has less mols?

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Science Chemistry

05/19/21

Students in a chemistry class added 5 g of Zinc (Zn) to 50 g of hydrochloric acid (HCl). A chemical reaction occurred that produced zinc chloride (ZnCl2) and 6 g of hydrogen gas (H2).

Students in a chemistry class added 5 g of Zinc (Zn) to 50 g of hydrochloric acid (HCl). A chemical reaction occurred that produced zinc chloride (ZnCl2) and 6 g of hydrogen gas (H2). Zn+ HCl →... more

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Answers •2

Chemistry

05/19/21

i only have one hour left ! i need help asap

1) A 728 mL gas sample at STP is compressed to a volume of 219 mL, and the temperature is increased to 30◦C. What is the new pressure of the gas in Pa? Answer in units of Pa.2)A sample of oxygen is... more

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Science Biology Chemistry

05/18/21

Chemistry problem

What is the greatest amount of magnesium oxide in moles that can be made with 6.3 mol Mg and 6.9 mol ? Which reactant is O2 limiting ? How many moles of the excess reactant will be left after the... more

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Answers •1

Math Geometry

05/18/21

The area of a circle is 78.5, what is its radius?

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Answers •3

Chemistry

05/18/21

Chemistry Question 16

The pressure of a 0.5388 mol sample of C2H6 in a 22.773 L container is measured to be 4.9487 atm. What is the temperature of this gas in kelvins? Remember:PV = nRTR= 0.0821 atm•L/mol•K

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Answers •1

Chemistry

05/18/21

How many moles are in 1.45 x10^23 molecules of ammonium phosphate?

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Answers •1

Science Chemistry

05/16/21

A sample of sulfur dioxide occupies a volume of 652 mL at 40°C and 720 mmHg. What will the volume be at STP?

hi pls someone help me to solve this one using Combined Gas Law formula

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Chemistry

05/15/21

Calculate the hydroxide ion concentration, [OH−] , for a solution with a pH of 7.44 . [OH−]=

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Answers •1

Chemistry

05/15/21

Calculate the pH of a solution that has a hydroxide ion concentration, [OH−] , of 5.29×10−8 M. pH=

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Answers •1

Math Algebra 1 Algebra 2

05/15/21

For the description below, choose a variable name for the given quantity. Give two numbers that the variable can represent and two numbers that it cannot represent.

The height (in inches) of a bookcaseWhich of the following would be a proper variable name for the height of a bookcase?a. 5b. hc. √5d. πChoose two numbers that the variable for the height (in... more

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Math Algebra 1 Algebra 2

05/15/21

Let s be the annual sales (in millions) for a particular electronic item. The value of s is 55.6 for 2005. What does s = 55.6 mean in this situation?

The given situation means that in the year ___, ___ million of this electronic item were sold.

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Answers •1

Math Science Biology

05/14/21

Please help me with chemistry math problems: URGENT PLEASE ANSWER

What is the heat required to vaporize 90.8 g of liquid ethanol, C2H5OH, at its boiling point? The ΔH° of vaporization of ethanol is 39.3 kJ/mol. Use a molar mass with at least as many significant... more

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Algebra 1 Algebra

05/14/21

Make a table of integer values from -3 to 3

I have to graph the function f(x) = 2x What would be the table of integer values from -3 to 3? Thank you!

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Answers •2

Algebra 1

05/14/21

Find an inequalitie

Janis babysits for x hours a week after school at a job that pays $8 an hour. She has accepted a job that pays $16 dollars an hour as a library assistant working y hours a week. She will work both... more

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Answers •1

Chemistry

05/14/21

How do i solve this using Thermochemistry?

Determine the amount of Heat (in kJ) needed to change 72.1 g of ice (solid water) from -23.3 C to 87.9 C. (round to hundredths place)Given:Heat of Vaporization of water = 2260 J/gHeat of Fusion of... more

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Science Chemistry

05/14/21

pls help me solve this i'm confused

6. How many degrees in Fahrenheit is a freshlycooked chicken if it has a Kelvin temperature of500?7. If the pressure in a container is half of thestandard atmospheric pressure, how muchkilopascals... more

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Chemistry

05/14/21

What is the final temperature?

If a sample of chloroform is initially at 25C, what is its final temperature if 150.0g of chloroform absorbs 1000, joules of heat and the specific heat of chloroform is 0.96J/gC

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Chemistry

05/14/21

What is the pOH of a 50.0 mL solution of 0.050 M HClO4? What is the pH of the solution?

I'm stuck on this question. Help would be greatly appreciated!

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Answers •1

what is the slope for (4,0) and (3,3)

Practice #5- limiting reactant in grams

The value of r is varying at a constant rate of change with respect to s.

Quadratic written into standerd form

You reacted 83.17 g of K with S to produce K2S. At the end of the experiment, you have 91.34 g of K2S. What is your theoretical and percent yields? 2 K + S → K2S

Mole ratiosssssss

Cu+2AgNO3→2Ag+Cu(NO3)2 BCA table

Students in a chemistry class added 5 g of Zinc (Zn) to 50 g of hydrochloric acid (HCl). A chemical reaction occurred that produced zinc chloride (ZnCl2) and 6 g of hydrogen gas (H2).

i only have one hour left ! i need help asap

Chemistry problem

The area of a circle is 78.5, what is its radius?

Chemistry Question 16

How many moles are in 1.45 x10^23 molecules of ammonium phosphate?

A sample of sulfur dioxide occupies a volume of 652 mL at 40°C and 720 mmHg. What will the volume be at STP?

Calculate the hydroxide ion concentration, [OH−] , for a solution with a pH of 7.44 . [OH−]=

Calculate the pH of a solution that has a hydroxide ion concentration, [OH−] , of 5.29×10−8 M. pH=

For the description below, choose a variable name for the given quantity. Give two numbers that the variable can represent and two numbers that it cannot represent.

Let s be the annual sales (in millions) for a particular electronic item. The value of s is 55.6 for 2005. What does s = 55.6 mean in this situation?

Please help me with chemistry math problems: URGENT PLEASE ANSWER

Make a table of integer values from -3 to 3

Find an inequalitie

How do i solve this using Thermochemistry?

pls help me solve this i'm confused

What is the final temperature?

What is the pOH of a 50.0 mL solution of 0.050 M HClO4? What is the pH of the solution?

Still looking for help? Get the right answer, fast.

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Robert S.

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what is the slope for (4,0) and (3,3)

Practice #5- limiting reactant in grams

The value of r is varying at a constant rate of change with respect to s.

Quadratic written into standerd form

You reacted 83.17 g of K with S to produce K2S. At the end of the experiment, you have 91.34 g of K2S. What is your theoretical and percent yields? 2 K + S → K2S

Mole ratiosssssss

Cu+2AgNO3→2Ag+Cu(NO3)2 BCA table

Students in a chemistry class added 5 g of Zinc (Zn) to 50 g of hydrochloric acid (HCl). A chemical reaction occurred that produced zinc chloride (ZnCl2) and 6 g of hydrogen gas (H2).

i only have one hour left ! i need help asap

Chemistry problem

The area of a circle is 78.5, what is its radius?

Chemistry Question 16

How many moles are in 1.45 x10^23 molecules of ammonium phosphate?

A sample of sulfur dioxide occupies a volume of 652 mL at 40°C and 720 mmHg. What will the volume be at STP?

Calculate the hydroxide ion concentration, [OH−] , for a solution with a pH of 7.44 . [OH−]=

Calculate the pH of a solution that has a hydroxide ion concentration, [OH−] , of 5.29×10−8 M. pH=

For the description​ below, choose a variable name for the given quantity. Give two numbers that the variable can represent and two numbers that it cannot represent.

Let s be the annual sales​ (in millions) for a particular electronic item. The value of s is 55.6 for 2005. What does s​ = 55.6 mean in this​ situation?

Please help me with chemistry math problems: URGENT PLEASE ANSWER

Make a table of integer values from -3 to 3

Find an inequalitie

How do i solve this using Thermochemistry?

pls help me solve this i'm confused

What is the final temperature?

What is the pOH of a 50.0 mL solution of 0.050 M HClO4? What is the pH of the solution?

Still looking for help? Get the right answer, fast.

OR

Robert S.

For the description below, choose a variable name for the given quantity. Give two numbers that the variable can represent and two numbers that it cannot represent.

Let s be the annual sales (in millions) for a particular electronic item. The value of s is 55.6 for 2005. What does s = 55.6 mean in this situation?