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  • Waiting for answer Which sentence uses the correct punctuation?

    Sentence A

  • Waiting for answer Ksp=2.4x10-5 for calcium sulfate What is the molar solubilit...

    Molar solubility: ##4.9 * 10^(-3)"M"## Calcium sulfate, ##"CaSO"_4##, will not dissociate completely in aqueous solution to form calcium cations, ##"Ca"^(2+)##, and sulfate anions, #...

  • Waiting for answer What is the definition of a tense? How many tenses are there...

    Tense shows the time when an action or condition occurred. Tense may also provide emphasis and may determine whether or not an action or condition was continuous or repetitive. Ther...

  • Waiting for answer Sulfur forms two chlorides ##"S"_2"Cl"_2## and ##"SCl"_2##.T...

    ##"32 g"## A substance's equivalent mass actually depends on the reaction in which said substance is involved. See this Wikipedia article for more details on how equivalent mass...

  • Waiting for answer What are the roles of animal cell organelles?

    enlist every structure in the cell and understand its function separtely. 1) : selectively permeable,allows some particles to pass and stops other. does not give a definite shape ! 2)cytoplasm: its a floating medium 3) mitochondria : involved in ATP production 4) ribosomes : protein factories 5) en...

  • Waiting for answer If the area of a square is 225 cm2, what is perimeter?

    The area of square is ##A=a^2## where a the length of a side.Hence ##A=225= a^2=225= a=15## Hence the perimeter is ##4*a=4*15=60##

  • Waiting for answer What is a major structural advantage that eukaryotic cells h...

    Eukaryotes have nuclei, organelles, mobility, and variety. Nuclei - Prokaryotic cells have all of their DNA floating about in the cell. This is highly inefficient, and also very uno...

  • Waiting for answer What is the oxidation state of phosphorus in PCl5?

    Phosphorus has a ##"+5"## in phosphorus pentachloride , or ##PCl_5##. In this case, phosporus' oxidation number depends strictly on chlorine's ##"-1"## oxidation number. Since the molecule is neutral, the of each element must add up to zero ##ON_("P") + 5 * ON_("Cl") = 0 = ON_("P") = 0 - 5 *...

  • Waiting for answer How long does it take Saturn to orbit the sun?

    29.45 year Saturn orbits Sun in 29.45 years.

  • Waiting for answer Who did John F. Kennedy run against in the 1960 presidential...

    John F. Kennedy run against Richard Nixon in 1960 and in the election it was Mr.Nixon lost to Kennedy. Kennedy is the most charismatic presidential candidate and he is the candidate...

  • Waiting for answer Why gravitational acceleration is zero at the centre of the...

    And because the Earth is rotating The linear speed of rotation at the equator is over 1000 mph / 1600 km/h which reduces g by a measurable 0.3%. Of course, at the pole the speed of r...

  • Waiting for answer What is the purpose of the microvilli of the small intestine...

    To increase the surface area of small intestine for better absorption of nutrients. The small intestine (SI) is the site of terminal food digestion and nutrient absorption. The la...

  • Waiting for answer What is a corner in calculus?

    A derivative at a specified point is only defined for a function where there is only one slope at that specified point. A corner is one type of shape to a graph that has a different slope on either side. It is similar to a cusp . You may see corners in the context of absolute value functions, like...

  • Waiting for answer What is one example of a transform boundary?

    The San Andreas Fault in California is one of the more famous transform boundaries, Transform faults occur when two boundary moves horizontally. Boundaries do not get smaller or bigger. When the pressure between two boundaries overcome the force that keeps them together, earthquake occurs. Nort...

  • Waiting for answer How did General McClellan move his troops to Virginia?

    By boat. George B. McClellan claimed that the land route had been tried by General Irwin McDowell in 1861. McDowell had been defeated at the battle of Bull Run on 21 July 1861. McCl...

  • Waiting for answer How do I use DeMoivre's theorem to solve ##z^3-1=0##?

    If ##z^3-1=0##, then we are looking for the cubic roots of unity, i.e. the numbers such that ##z^3=1##. If you're using complex numbers, then every polynomial equation of degree ##k## yields exactly ##k## solution. So, we're expecting to find three cubic roots. De Moivre's theorem uses the fact t...

  • Waiting for answer What is free fall and how does it relate to gravity?

    Free fall means a body falls down under no influence of external force except gravitational force. So when a body is under free fall, According to ,Force ## 'F' = (G*m_1*m_2)/d^2 ##. where ##m_1 =##mass of the earth = ##M##. ##m_2 =##mass of the body = ##m##. ##d =##distance between the bodies =##R...

  • Waiting for answer What are the general characteristics of members of the class...

    If you see an organism with feathers, then it's a bird. General characteristics of organisms under class aves are the following; 1. Its body is surrounded with feathers 2. Have wings 3. Clawed feet 4. Lay eggs 5. Warm-blooded 6. Beaks instead of teeth

  • Waiting for answer Is this a Buffer? 25 ml of 0.60 M HClO4 + 45 ml 0.60 M KF. P...

    Yes, this is a buffer with = 3.04. ##"KF"## is the salt of a strong base and the weak acid ##"HF"##. The ##"F"^-## ion is basic and will react completely with a strong acid like ##"HClO"_4##. The ##color(red)("molecular equation")## is ##"KF(aq)" + "HClO"_4"(aq)" → "HF(aq)" + "KClO"_4"(aq)"##...

  • Waiting for answer What is the opposite and reciprocal of 3/5?

    opposite of any number is the same number but with opposite sign ∴opposite of ##color(blue)(3/5## is ##color(blue)(-3/5## to generalise, the reciprocal of number ##x##(any number) is ##1/x## here note that the sign of the number does not change at all. so, the reciprocal of ##color(red)(3/5## is #...

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