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03/16/23

Chemical reaction balancing problem

4.800 g of H2 was mixed and ignited with 36.40 g of O2. How much and which substances will be present in the reaction flask when the reaction is complete? Prove that the total mass of all the... more

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Science

03/14/23

You decide that you want to make a sample of Al2O3 with a mass of 305.6 grams. How many grams of Al would you need?

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Science Elementary (k 6th)

03/14/23

Clay, sand, silt

Identify if it's clay, sand and silt1. Has the smallest particle2. Hold the least amount of water3. Particles are larger than clay4. Used in making glass5. Has the largest particles6. Soil good for... more

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Science Chemistry

03/09/23

All about minerals

What is the colour,Transparency,Crystallinity and Cleaverage or fracture of Quartz?

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Science Biology

03/08/23

A scientist is studying an organism that is similar to early life on Earth. The scientist observes structures form in the organism that appear as oily spheres with an inner fluid.

A scientist is studying an organism that is similar to early life on Earth. The scientist observes structures form in the organism that appear as oily spheres with an inner fluid.Of which type of... more

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Science Math Chemistry

03/07/23

100mL of a solution that is simultaneously 15.6 mg/mL malonic acid, 3.38 mg/mL MnSO4 • H2O, and 0.03% starch

Calculate the volumes necessary to make this solution in g and mL

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Science Math Chemistry

03/07/23

100mL of a solution that is simultaneously 15.6 mg/mL malonic acid, 3.38 mg/mL MnSO4 • H2O, and 0.03% starch

Calculate the g and mL necessary to make this solution

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Science English Business American History

03/07/23

Please answer !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

do u know a well-known case in which eyewitness testimony served as a controversial source of information and please describe the details of the case. Also, discuss whether or not you think... more

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Science Chemistry

03/06/23

Question about chemistry graph

How would you determine the apparent rate constant, k' of a first order graph?How would you determine Frequency factor, A. from a Arrhenius plot?

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Science Chemistry

03/06/23

Need help as quickly as possible with this chemistry question

Determine the mass of the precipitate that will form when a solution, prepared by dissolving 0.287g of iron (III) nitrate in 100mL of distilled, deionized water, is mixed with a 10% excess of... more

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Science

03/06/23

ARDMS Board Exam review

I can help you prepare for your ARDMS/RVT board certification exam with Abdomen, OB/GYN, Breast and Vascular review questions

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Science Chemistry

03/06/23

Stoichiometry Question

Calculate the number of atoms in 4.15 moles of silver (Ag).

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Science Chemistry

03/06/23

Stoichiometry Question

What is the mass in grams of 0.450 moles of lead(II)nitrate. (Pb(NO3)2 molar mass =331.22g/mol

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Science Chemistry

03/06/23

stoichiometry question

Determine the moles if given 36.4g of potassium.

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Science Chemistry

03/06/23

stoichiometry question

2C2H2 + 5O2 → 4CO2 2H2OHow many moles of carbon dioxide are represented? How many atoms of hydrogen react?What is the mole ratio between oxygen gas and water?

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Science Chemistry

03/06/23

Stoichiometry Question

Is 6.02x10^23 molecules of carbon monoxide greater than, less than, or equal to 1 mole of carbon dioxide molecules?Is 1 mole carbon monoxide greater than, less than, or equal to1 mole of carbon... more

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Science Chemistry

03/06/23

Stoichiometry Question

Can you fit one mole of people into a classroom? why or why not?

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Science Chemistry

03/06/23

Stoichiometry Question

Can you help me sort from smallest to largest?1/2 mole, 5, 2 pair, 1 ream=500, 4 dozen, 5.5x10-4

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Science

02/28/23

The menstrual cycle ends by the age of 45 to 50 years

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Science Chemistry

02/27/23

Can someone please help with this chem question

"The heat capacity, 𝐶P, of liquid carbon disulfide is a relatively constant 78 J/(mol·K). However, the heat capacity of solid carbon disulfide varies greatly with temperature. From 89 K to its... more

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Science Chemistry

02/26/23

need help with chemistry question

The change in distribution of six gaseous particles between three interconnected containers is shown in the images. Determine which of the changes have a positive Δ𝑆. ⟶ ⟶ ⟶ ⟶

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Science

02/25/23

What is the scientific method?

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Science Chemistry

02/24/23

A 1.2 g potato chip is burned under a test tube filled with 10. g water. The temperature rises from 25 ˚C to 65 ˚C. How many Calories are contained in that chip?

1000 calories = 1 Calorie q=mSH∆tSH water = 1cal/g˚C

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Science Math Chemistry Organic Chemistry

02/23/23

How can this Chemistry problem be solved?

Calculate the kilojoules needed to heat 175 g of copper from 82. ∘F to 347 ∘F. The specific heat of Copper is 0.0920 cal/g °C and 0.385 J/ g °C. Give your answer in the correct number of... more

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Science Math English Study Skills

02/22/23

What do you think are the most important characters a tutor should have in order to successfully help their student succeed academically and in life?

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Answers •3

Chemical reaction balancing problem

You decide that you want to make a sample of Al2O3 with a mass of 305.6 grams. How many grams of Al would you need?

Clay, sand, silt

All about minerals

A scientist is studying an organism that is similar to early life on Earth. The scientist observes structures form in the organism that appear as oily spheres with an inner fluid.

100mL of a solution that is simultaneously 15.6 mg/mL malonic acid, 3.38 mg/mL MnSO4 • H2O, and 0.03% starch

100mL of a solution that is simultaneously 15.6 mg/mL malonic acid, 3.38 mg/mL MnSO4 • H2O, and 0.03% starch

Please answer !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question about chemistry graph

Need help as quickly as possible with this chemistry question

ARDMS Board Exam review

Stoichiometry Question

Stoichiometry Question

stoichiometry question

stoichiometry question

Stoichiometry Question

Stoichiometry Question

Stoichiometry Question

The menstrual cycle ends by the age of 45 to 50 years

Can someone please help with this chem question

need help with chemistry question

What is the scientific method?

A 1.2 g potato chip is burned under a test tube filled with 10. g water. The temperature rises from 25 ˚C to 65 ˚C. How many Calories are contained in that chip?

How can this Chemistry problem be solved?

What do you think are the most important characters a tutor should have in order to successfully help their student succeed academically and in life?

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