4,347 Answered Questions for the topic Science

Science

05/21/21

what is the highest occupied energy level of a noble gas atom
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05/20/21

If anyone could help me out that would be amazing,with hemi
What is the greatest amount of sodium chloride in moles that can be made with 13 grams copper II chloride and 15 grams sodium nitrate? Which reactant is limiting? How many moles of the excess... more
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05/20/21

Chemistry question

What is the greatest amount of sodium chloride in moles that can be made with 13 grams copper II chloride and 15 grams sodium nitrate? Which reactant is limiting? How many moles of the excess... more
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05/20/21

chemistry question I would really love if someone can help me
2.      How many grams of sodium nitrate can be produced with 60 grams of sodium chloride and 55 grams of lead IV nitrate? Which reactant is limiting? How many grams of the excess reactant will be... more
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05/20/21

Limiting Reactant in Grams
1.      What is the greatest amount of silicon tetrafluoride 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... more
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05/20/21

question practice chemistry

1.      What is the greatest amount of sodium chloride in moles that can be made with 13 grams copper II chloride and 15 grams sodium nitrate? Which reactant is limiting? How many moles... more
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05/19/21

Genetic Engineering
Do you think genetic engineering is/could be harmful to society? Why?
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05/19/21

Which of the following are equal to -40 F? check all that apply.

A. 223 KB. -80 CC. 200 KD. -40 C
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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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Science Chemistry

05/18/21

Chemistry question on limiting reactants

How many moles of black iron oxide (Fe3O4) can be produced from 9.2 moles of water and 3.4 moles of iron ? Which is the limiting reactant and how many moles of the excess reactant will be left... 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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05/18/21

15. The bonds between atoms store ______________________, When the bonds break the energy (in the form of light or heat) can be released.
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05/18/21

This would be a huge help
1.      What is the greatest amount of magnesium oxide in moles that can be made with 6.3 mol Mg and 6.9 mol O2? Which reactant is limiting? How many moles of the excess reactant will be left after... more
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05/18/21

Chemistry question

How many moles of sodium sulfate are formed when 13.2 moles of sulfuric acid reacts with 30.6 moles of sodium hydroxide? Which reactant is limiting? How many moles of the excess reactant will be... more
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05/18/21

Practice question

How many moles of sodium sulfate are formed when 13.2 moles of sulfuric acid reacts with 30.6 moles of sodium hydroxide? Which reactant is limiting? How many moles of the excess reactant will be... more
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05/18/21

limiting reactions

2.   How many moles of sodium sulfate are formed when 13.2 moles of sulfuric acid reacts with 30.6 moles of sodium hydroxide? Which reactant is limiting? How many moles of the excess reactant will... more
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Science

05/18/21

What is the speed of a wave with a wavelength of 4 m and a frequency of 2 Hz?
 What is the speed of a wave with a wavelength of 4 m and a frequency of 2 Hz?
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05/18/21

practice #3 questions
1.      What is the greatest amount of copper IV nitrate in moles that can be made with 24.3 mol copper II chloride and 20.9 mol sodium nitrate? Which reactant is limiting? How many... more
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05/18/21

Practice #2 questions
1.      What is the greatest amount of magnesium oxide in moles that can be made with 6.3 mol Mg and 6.9 mol O2? Which reactant is limiting? How many moles of the excess reactant will be left... more
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Science

05/18/21

Why and how do these scenarios happen?
1. A comet in space continues to move without slowing down or slowing up.2. A large asteroid crashes into the moon.3. A rocket launches from Earth, leaves the atmosphere, and goes into space.4. You... more
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05/16/21

The production of filtrate is carefully regulated so the volume remains the same (mls/hour) despite changes in blood pressure and level of hydration.

The production of filtrate is carefully regulated so the volume remains the same (mls/hour) despite changes in blood pressure and level of hydration. How then, does the body regulate the volume of... more
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05/16/21

. The arrangement of the blood vessels entering and leaving the glomerulus is unique to this system, how does this system of blood vessels differ to blood vessels in other tissues.

I need help with this question please
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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 help me to solve this one
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Science Chemistry

05/16/21

hi pls help me to solve this using dalton's law of partial pressure fomulaa
1. A 1.5 L container is pressurized with 0.25 atm ofoxygen gas and 0.60 atm of nitrogen gas. Whatwill be the total pressure inside the container?2. A container holds oxygen gas, carbon dioxide,and... more
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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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