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  • Waiting for answer How do you find the sum of the first 30 positive multiples o...

    This would be an arithmetic series. Lets first look at the first three terms of this series. 3, 6, 9 What do you notice? Each number after the first is 3 larger than the previou...

  • Waiting for answer What is the atomic number for nitrogen?

    Nitrogen's is equal to 7 . Nitrogen is located in group 15, period 1 of the , and has an equal to 7 . In order to get an element's atomic number, you need to know how many protons...

  • Waiting for answer What is the purpose of the prologue in Romeo and Juliet?

    To set the scene and let the audience know what context this play is taking place in, and also to foreshadow the events of the story. If there was no prologue, it would not be hard...

  • Waiting for answer How many grams of MgO are produce when 50 grams of Mg react...

    in order to determine the mass of MgO produced when 50g of Mg react with ##"O"_2##, you must use . This answer will give the theoretical yield of Mg. Your experimental yield will more than likely not be the same, as Mg can also react with oxygen in other ratios, and it can also react with water vapo...

  • Waiting for answer What is the numerical coefficient of the variable and the co...

    coefficient: 6 constant: 5 the coefficient is the number that comes before/with the ##x## variable, and the constant is the value that is independent of any changes in the ##x## vari...

  • Waiting for answer What is the chemical formula for silver sulfate?

    ##Ag_2SO_4## Silver commonly forms the ##Ag^+## ion. Hence 2 equiv silver ion will give a neutral salt with 1 equiv sulfate ion.

  • Waiting for answer What is xylem ?

    Xylem is a channel within the stems/trunk of a plant that draws water up from the lower parts of the plant (where water entered via roots) to higher parts of the plant. Xylem can transport water, and also different minerals that are soluble in water, against the pull of gravity, so that all parts...

  • Waiting for answer What are tendons and ligaments?

    connective tissues... tendon- it is a fibrous connective tissue that attaches muscle to bone ligament-it is a fibrous connective tissue that connects bones to other bones hope...

  • Waiting for answer What is chemistry?

    Chemistry is the study of atoms and what they do with their electrons. Chemistry courses invariably begin with the study of atoms. They do not, however, delve into the intricate workings of the nucleus: that's the realm of Physics. They begin with atoms as "protons, neutrons and electrons" and you...

  • Waiting for answer How do you find the hypotenuse of a isosceles right triangle...

    ##"hypotenuse" = l * sqrt2## An isosceles right triangle has a ##90^@## angle between its two equal sides , let's say ##l##. If the hypotenuse is ##"hyp"##, you can use Pythagora...

  • Waiting for answer What metric unit is used to measure length?

    Usually when measuring length, the meter is used. However, it depends on what you are measuring the length of. For example, if you were to measure the length of a basketball court,...

  • Waiting for answer How do you calculate the force of sliding friction?

    That really depends on what you know about the situation. The simplest way is if you know the weight of the object and the materials you could use: ##F_F## ##=mu F_N## Where you look-up the coefficient of sliding friction (##mu##). This assumes you're sliding along a horizontal surface so that the...

  • Waiting for answer How do you factor ##x^3 + 1/8##?

    This problem involves factoring the sum of cubes. ##(a^3+b^3)=(a+b)(a^2-ab+b^2)## For the expression ##(x^3+1/8)##: ##a=root3(x^3)=x## ##b=root3(1/8)=1/2## Solution: ##(x^3+1/8)## = ##(x+1/2)(x^2-(x*1/2)+(1/2)^2)## = ##(x+1/2)(x^2-x/2+1/4)##

  • Waiting for answer What is the verb or verb phrase in the sentence, " What is t...

    The verb is 'is' There is only one verb in the sentence that connects "What" with "the most feared animal in the West?". The phrase 'most feared' functions as an adjective for the no...

  • Waiting for answer What is the Ka of a strong acid like HCl?

    The approximate value of ##pKa## is ##-7## for ##HCl##. Hydrochloric acid is a strong acid and it is considered to completely dissociate in water under the following equation: ##HCl...

  • Waiting for answer What polyatomic ions end in -ide?

    The that end in -ide include, ##OH^-## hydroxide, ##O_2^-## peroxide, ##CN^-## cyanide, ##NH_2^-## amide and ##HS^-## hydrogen sulfide. The -ide suffix, is usually reserved for monatomic anions. Non-metal ions like oxygen, fluorine and chlorine take on the -ide and become oxide, fluoride and chlo...

  • Waiting for answer How do you evaluate the expression ##n^4## when n=7 and when...

    When ##n=7##, ##n^4=7^4=7*7*7*7=2401.## Similarly, when ##n=0.4##, ##n^4=(0.4)^4=(0.4)*(0.4)*(0.4)*(0.4)=0.0256.## When ##n=7##, ##n^4=7^4=7*7*7*7=2401## Similarly, when ##n=0.4#...

  • Waiting for answer How are negative exponents used in real life?

    In dealing with both extremely large and extremely small numbers the use of an exponent, positive and negative, in standard practice. If, for example, you wanted to show the size of a single atom of hydrogen it would be: 1.2 x 10 to the -10 power. The long form would look like: .000000000012.

  • Waiting for answer What is the slope and y-intercept of the line y=-5x+2?

    The is ##5## The ##y##-intercept is ##(0,2)## This is the slope-intercept form of a line (you can read the slope and y-intercept straight off): ##y=mx+b## where: ##(x,y) - ## p...

  • Waiting for answer How did the Spanish plan to protect their colonies in the Ne...

    The Spanish planned to protect their New World colonies by imposing strict guidelines to safeguard their investments. The Spanish colonies in the new world were guided by immovable,...

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