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  • Waiting for answer Density =gm/cc So , what is the meaning of cc??

    cc is cubic centimeters, "cc" should not be used. "##cm^3##" is the correct way of writing. And "gm" is also wrong. It shoul be only "g".

  • Waiting for answer How does a positive ion form?

    By giving away an electron. I'm assuming you are talking about . on the left-most part of of elements have one extra electron to the . This is why they want to give an electron aw...

  • Waiting for answer What is the oxidation number for all elements of ClO2-?

    Cl = +3 and O = -2 ##ClO_2^(-)## is a polyatomic ion with a charge of -1 The charge of chlorine is: +3 The charge of each oxygen is: -2 So how do you figure this out? Oxygen alway...

  • Waiting for answer You are standing 40 meters from the base of the tree that is...

    The tree is about 16.28 meters tall. First, we draw a diagram to represent the problem. To convert the angle measurement from minutes to a decimal, divide the minutes by 60, and add that to the degrees. That's our new angle measurement. ##50/60= 0.833+20= 20.833## To find the angle the tree makes...

  • Waiting for answer The pH of 0.1 M HClO2 was measured to be 1.2, what is the va...

    Based on these values the pka = 0.967 Like many chemistry problems, the first thing to do is to write a chemical formula: ##HClO_2+H_2O - ClO_2^(-) + H_3O^+## Then we can write an...

  • Waiting for answer What is the role of RNA polymerase in protein synthesis?

    RNA polymerase enzymes are essential to life and are found in all organisms and many . In chemical terms, RNAP is a nucleotidyl transferase that polymerizes ribonucleotides at the 3' end of an RNA transcript. RNAP can initiate transcription at specific DNA sequences known as promoters. It then produ...

  • Waiting for answer How many grams of solute are present in 50 mL of 0.360 M sod...

    There are 1.05g of present. Let's start off with the equation for : We are given the molarity and the volume of solution. The only issue is that the volume is given in mL instead...

  • Waiting for answer In Bohr's model of the atom, where are the electrons and pro...

    Electrons were in orbits around the nucleus, which contained protons and neutrons. For more information on Bohr's Model,

  • Waiting for answer What is the difference between Carbon 12, 13, and 14?

    The difference is the number of neutrons. Carbon 12, 13 and 14 are carbon isotopes, meaning that they have additional neutrons: Carbon 12 has exactly 6 protons and 6 neutrons ( he...

  • Waiting for answer How can I balance this equation? ___ AlBr3 + ____ K2SO4 ---&...

    ##AlBr_3 + K_2SO_4 - KBr + Al_2(SO_4)_3## How I balance equations is by first of all dividing the equation into two parts - reactants and products. Reactants Al = 3 Br = 3 K = 2 S = 1 O = 4 Products Al = 2 Br = 1 K = 1 S = 3 O = 12 Remember all atoms within the brackets get multiplied by the...

  • Waiting for answer Is there a rule for punctuation with quotes? When does punct...

    If the sentence ends with a quote, the period goes inside the quotes. If a sentence has a quote that ends the sentence, the period would go inside the and you don't need one outside...

  • Waiting for answer What is biochemistry?

    Biochemistry is one of the crossover fields of chemistry. It's basically the chemistry of the living world. Plants, animals, and single-celled organisms all use the same basic chemic...

  • Waiting for answer Every natural number is positive?

    It depends... Natural numbers are always non-negative and whole, but sometimes ##0## is considered a natural number and sometimes it is not. One way of thinking of it is as follows:...

  • Waiting for answer What was the major threat to the Habsburg Empire?

    Probably the Ottoman Empire Vienna was sieged (but not taken) twice by the Turks. Once in 1529 and again in 1683. The Habsburg lost huge slates of territory to the exapanding Ottoman...

  • Waiting for answer How are monomers, polymers and macromolecules related?

    Monomers are smaller molecules, and when bonded together, make up polymers . -Fatty acids are the monomers for lipids , for example, and regardless of how they are bonded (as a saturated or unsaturated fat, for example), they will form lipids. -Nucleotides form nucleic acids (eg. DNA) -Monosa...

  • Waiting for answer What is the Arrhenius acid that contains the bromite anion?

    This acid would be called bromous acid and has the formula ##HBrO_2## The bromite ion (##BrO_2##) has a -1 charge, so it must be paired with one hydrogen ion (##H^+##) Acid names of ternary acids (contain such as bromite) will not include the prefix hydro. They will have a name ending which indi...

  • Waiting for answer Suzie and Scott drive together for American freight. One day...

    ##t_2=8h## ##v_1=54mph## ##v_2=58mph## ##Deltat=3h## ##t_2=t_1+Deltat = t_1=t2-Deltat## ##s=s_1+s_2=734m## ##t_2=?## ##s_1=v_1*t_1## ##s_2=v_2*t_2## ##s=v_1*t_1+v_2*t_2## ##s=v_1*(...

  • Waiting for answer What is the empirical formula of potassium chloride?

    The empirical formula for potassium chloride is ##"KCl"##. The empirical formula for a compound is the lowest whole number ratio of in one molecule or formula unit of the compound....

  • Waiting for answer How do you write 140 as the product of its prime factors?

    ##140=2xx2xx5xx7## To write any number as a product of its prime factors, we should find all those which when multiplied together form the number. Note that in such factorization, p...

  • Waiting for answer Why is ozone, ##O_3##, bent and not linear ?

    The of the ozone molecule is bent because of the lone pair of electrons present on the central oxygen atom. There are at least three used to describe the ozone molecule, but I'll only focus on two of them, the major contributors to the actual hybrid structure . Notice that the central oxygen...

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