06/13/22

How many molecules of H2O are there in 1 mole of water molecules?
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06/05/22

Innate immunity is considered as non-specific immunity because ___.
Innate immunity is considered as non-specific immunity because ___.A. They treat all pathogens in the same way. B. Innate immunity respond to a specific pathogen at a time. C. Innate is also called... more
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06/01/22

Find the equation of a line perpendicular to y=−23x+1
A. y=−2/3x+5B. y=3/2xC. y=2/3x+1D. y=−3/2x+4
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05/30/22

A patient has Type A blood. What antigen is present in this person's red blood cells?
a. Ab. ABc. Bd. O
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05/24/22

Restriction enzymes catalyze anabolic reactions whereas ligase catalyzes catabolic reactions
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05/23/22

How many grams of silver nitrate are required to produce 30 grams of silver? (Note: the equation is already balanced) Cu(s) + 2AgNO3(aq) → 2Ag(s) + Cu(NO3)2(aq)
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05/23/22

Why do scientific names used for?

RANA TIGRINA is the scientific name of frog
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05/22/22

Can someone please answer this question

Magnesium carbonate and phosphoric acid react to form products in a double displacement reaction.Write the balanced chemical equation for this reaction. Make sure to correctly format the formulas... more
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05/18/22

A Hess' Law Problem
Given the following data: Fe2 O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) ΔH = -28 kJ 3Fe2 O3(s) + CO(g) →2Fe3 O4(s) + CO2(g) ΔH = -59 kJ Fe3 O4(s) + CO(g) →3FeO(s) + CO2(g) ΔH = +38 kJ Calculate the... more
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05/16/22

how many moles of copper (Cu) would be needed to produce 8 moles of copper (II) oxide (Cu2O)?
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05/01/22

If the enzyme helicase was denatured, which step in DNA replication would be most affected?
If the enzyme helicase was denatured, which step in DNA replication would be most affected? The removal of the RNA primers The correct pairing of the nucleotides The formation of the replication... more
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05/01/22

What is the function of enzyme DNA polymerase in DNA replication?
What is the function of enzyme DNA polymerase in DNA replication? Unzipping the strand Adding nucleotides to the 3’ end of the strand Removing Okazaki fragments from the strand Repairing damaged to... more
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04/26/22

What are these pairs of chromosomes called?
People often refer to the human genome as being comprised of 23 pairs of chromosomes. What are these pairs called? How do these pairs relate in regard to size, genes, and alleles? Make sure to... more
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04/20/22

Double replacement question

2 AgNO3 (g) + Ca(OH)2 (g) -› Ca(NO3)2 (g) + 2 AgOH (g)is this double replacement?
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04/20/22

Help with highschool STOICH problem please!!
How many grams of Chloroform (CHCI3) are formed if you have 30 grams of CH2Cl2and a room full of Chlorine gas?CH2Cl2 (g)+ Cl2(g) = CHCL3 (I) + HCI (g)
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04/20/22

I’m not sure if this is a double displacement or composition ? Help
C3H8 (g) + 5 O2(g) = 3 CO2(g) + 4 H2O(I’m not sure if this is a double displacement or composition ? Help
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04/19/22

Stoichiometry and Percent Yield
A student reacted 0.500 g of Pb(NO3)2 with 0.750 g of KI according to the reaction,Pb(NO3)2 (aq) + 2 KI (aq) --> PbI2 (s) + 2 KNO3 (aq)If the student obtained 0.538 grams of PbI2 product after... more
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04/19/22

algebra 1 word problems

Kyle works at a donut factory where a 10-oz cup of coffe costs 95 cents. A 14-oz cup costs $1.15 and a 20-oz cup costs $1.50. during one busy period kyle served 24 cups of coffee using 384 ounces... more
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04/19/22

Explain how 3 meters of DNA can fit inside the microscopic nucleus of a microscopic cell.

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11/25/20

Chem Homework. Really need help
The combustion of octane, C8H18, proceeds according to the reaction shown.2C8H18(l)+25O2(g)⟶16CO2(g)+18H2O(l)If 611 mol of octane combusts, what volume of carbon dioxide is produced at 24.0 ∘C and... more
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11/25/20

solving compound inequalities !!!!!!!!!!!!!!!!

−9x+5≤17 or 13x+25≤−1−15x+60≤105 and 14x+11≤−31
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11/25/20

Solving a tax rate or interest rate problem using a system of linear equations
Lena bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $250 more than the desktop. She paid for the computers using two different financing plans. For the... more
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11/24/20

An international company has 18,900 employees in one country. If this represents 23.8% of the company's employees.

An international company has 18,900 employees in one country. If this represents 23.8% of the company's employees, how many employees does it have in total?Round your answer to the nearest whole... more
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11/23/20

Compound is CF2Cl2. Mass is 1.44 kg. How many moles are there?
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11/23/20

What is the equation of the line that passes through the point (−6,−5) and has a slope of -1/2
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