Homework answers and tutorials

Waiting for answer How would you define density?
##"Mass per unit volume"## ##"Density, "rho## ##=## ##"Mass"/"Volume"## We could apply the term to all . For chemists, the most typical units of are ##g*mL^1##.
$10.00 
Waiting for answer A substance Q conducts electricity both when solidand molten...
a metal or a metalloid A metal conducts electricity. A metalloid could conduct electricity ;but if it does, its conducting power is not as strong as that of a metal.
$10.00 
Waiting for answer What is the function of the integumentary system?
The is that organ system that protects the body from various kinds of damage like dehydration and abrasions from outside. The skin acts as the body's first line of defence against i...
$10.00 
Waiting for answer What are the three psychosexual stages?
oral stage, anal stage, phallic stage, latency stage, and genital stage. According to Sigmund Freud humans have five stages of development in which they develop sexually. He termed t...
$10.00 
Waiting for answer What is the isomer, monomer, and polymer for carbohydrates?
A monomer is a single unit of a substance (eg. Amino acid).A polymer is a chain of monomers (eg protein).An isomer is a molecule of an element with the same chemical formula but a different chemical structure (sucrose and maltose).
$10.00 
Waiting for answer How does Newton's third law work when you walk?
When you walk your foot pushes on the floor and the floor pushes back on you  in the opposite direction, resulting in your moving in the direction you are walking. Newton's 3rd law...
$10.00 
Waiting for answer Because gravity on is about onethird of that on Earth, coul...
No, we can't infer from the lower value of due to gravity of Mars that it has more mass than Earth. The force of gravity is explained . Taking extract from the linked answer. The...
$10.00 
Waiting for answer What is a binary acid and how do you name them?
A binary acid is an acid containing two , the hydrogen atom and a more electronegative element. Its name is prefixed with hydro and ends with the second element's name suffixed with "ic"....
$10.00 
Waiting for answer How is the confidence interval formula for the slope similar...
it has the same format. eg. 95% CI for ##B_1## = ##b_1## ##+_## SE(##b_1##)
$10.00 
Waiting for answer How do you simplify ##sqrt(44)##?
The answer is ##2sqrt(11)##. To simplify a square root, you factor what's inside the root into perfect squares and everything else. In this case, you can factor 44 into a product of 4 and 11: ##sqrt(44) = sqrt(4*11)## 4 is a perfect square, so you can take it out its root giving you the answer:...
$10.00 
Waiting for answer How do you verify ##(sin^2x  cos^2x)/(sinx + cosx)=sinxcos...
Very Carefully... The top portion of this fraction is a difference of 2 squares, meaning ##sin^2(x)cos^2(x)=(sin(x)+cos(x))(sin(x)cos(x))##, so ##(sin^2(x)cos^2(x))/(sin(x)+co...
$10.00 
Waiting for answer What is the molecular weight of H2SO4?
98 In order to calculate the molecular weight f H2SO4 you need to add up all the atomic masses of individual elements. Atomic mass of oxygen=16 * 4=64 Atomic mass of hydrogen= 1 *...
$10.00 
Waiting for answer What is the past and past participle of the word "show"?
show  showed  shown. It is an irregular verb. simple form : showed Past participle form: shown
$10.00 
Waiting for answer What happened as a result of the Opium War?
China was opened to Europeans for the first time...ever, basically. Britain, after subduing much of India, had a lot of resources they could extract from the subcontinent. One of th...
$10.00 
Waiting for answer What is 66% as a fraction in simplest form?
##33/50## per cent means ##color(blue)"out of one hundred"## ##rArr66%=66/100## Simplify the fraction by dividing numerator/denominator by a ##color(blue)"common factor."## When n...
$10.00 
Waiting for answer The sum to infinity of a geometric series is 32. The sum of...
The difference between the sum to infinity and the sum of the first eight terms is ##1/8##. A geometric series is one in which ratio of a term to its preceding term, generally descri...
$10.00 
Waiting for answer A jewelry box contains two gold hoop earrings and two silver...
##1/4## ##Pr(1 silver)=1/2## ##Pr(2silver)=1/2*1/2=1/4##
$10.00 
Waiting for answer How much 2% glucose solution can be made from 50.0 mL of 35%...
978 ml There are two approaches to this calculation. The first is a simplified method which assumes that the of the glucose solution is identical to that of water at room temperatu...
$10.00 
Waiting for answer Who was Mansa Musa? Why is he important?
He was the Emperor of Mali in the 14 century, founder to Timbuktu as a trading center in North Africa through the Sahara. Mansa Musa was the leader of Mali a West African empire whic...
$10.00 
Waiting for answer Are all unicellular organisms haploid? If not, how do we kno...
What are Haploid Cells? Haploid cells are cells that contain only one complete set of chromosomes. The most common type of haploid cells is gametes, or sex cells. Haploid cells are produced by What are Diploid Cells? Diploid cells are those that have two sets of chromosomes.Most mammals are d...
$10.00