Dominick

This page lists questions and answers that were posted by visitors named Dominick.

Questions

The following questions were asked by visitors named Dominick.

A light is suspended at a height h above the floor. The illumination at the point P is inversely proportional to the square of the distance from the point P to the light and directly proportional to the cosine of the angle θ. How far from the floor should...

what is a range, variance, standard deviation, and interquartile range

A sample of sodium reacts completely with 142 g of chlorine, forming 234 g of sodium chloride. What mass of sodium reacted? Express your answer to three significant figures and include the appropriate units.

A sample of sodium reacts completely with 142 g of chlorine, forming 234 g of sodium chloride. What mass of sodium reacted? I took 142g of Cl / 35.5g/mol = 4 mols of Cl Then I took 58.44g/mol x 4 mols of Cl = 233.76 It asked for three significant figures...

The number of protons in a cation must always be ________ the number of electrons.

If the half-life of iodine-131 is 8 day, how much would remain undecayed after 8 day if we started with 38 grams? How much at 16 days? 24 days? 32 days?

What were the 4 goals of the Manhattan Project?

Describe the Domain of the Function: F(x)= 2x/(x-2)(x-1) The domain of the function consists of all real numbers x except ____?

Find the slope of the curve y=x^4 at x=4 The slope of the curve at x=4 is ___.

If f(x)=x^4, compute f(-2) and f'(-2) f(-2)=___ <--- ?

The average energy yield per gram of carbohydrate and of fat is A).4 kcal and 9 kcal, respectively B).9 kcal and 4 kcal, respectively C).9 kcal each D).4 kcal each

Which of the following are B vitamins? Check ALL that apply. A). ascorbic acid B). retinol C). calciferol D). thiamine E). niacin

Compute d/dx(f(g(x))) -where f(x)= square root of x -and g(x)=x^2+7

Compute d/dx[f(g(x))] -where f(x)=x^4-x^2 -and g(x)=x^2-7 (Note: I tried 5 times but I still got this wrong. Plz help)

What is the likely identity of a substance (see Table 10-1) if a sample has a mass of 16.0 g when measured in air and an apparent mass of 15.2 g when submerged in water? Which of the following is it? -copper -gold -lead -aluminum -iron or steal -concrete...

the mass of anhydrous copper two sulfate is 7.9g. if one mole weighs 159.5g, how many moles of the compound are present?

You're planning on making 5 meatloafs for a party. You go to the store to buy breadcrumbs, and see they are sold by the canister. How many canisters do you need to buy?

Explain why |−3| + |9| represents the distance between the points (−3, −5) and (9, −5).

Answers

The following answers were posted by visitors named Dominick.

Isn't it different because its chlorine and Sodium?

I really need help on this I still don't understand where your getting some of the units from. g/mols

I got 234g and it was wrong? Can you off anymore help plz?