The actual size of a wood louse is 0.4mm but Robert drew his 5mm. What is the magnification?Please answer QUICK I ain’t got much time

I’ll give brainiest if you answer in the next 15 mins

Answers

Answer 1
Answer:

Final answer:

The magnification of Robert's drawing of a wood louse can be obtained by dividing the size of the drawing (5mm) by the actual size of the wood louse (0.4mm). This gives a magnification of 12.5 times.

Explanation:

The magnification of a drawing can be calculated using the method 'Image size/Actual size'. In this question, Robert's drawing is of a size 5mm while the actual size of the wood louse is 0.4mm. Substituting these values into the formula, you would get 5mm/0.4mm which equates to a magnification of 12.5 times.

The magnification of Robert's drawing of a wood louse can be calculated by dividing the size of the drawing by the actual size, resulting in a magnification of 12.5.

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Answer 2
Answer:

Answer:

Magnification is the number of times larger an image is compared with the real size of the object.

Magnification = Image / Actual  = 5/0.4 =12.5

Explanation:


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How many moles of chlorine, cl, are there in 8 moles of carbon tetrachloride, ccl4?

Answers

Moles are the amount of substance

the break down of CCl₄ is as follows

CCl₄ --> C + 4 Cl

in the compound CCl₄ - 1 mol of CCl₄ contains 4 mol of Cl

so for every 1 mol of CCl₄ there are 4 mol of Cl

then in 8 mol of CCl₄ - there are 4 x 8 = 32 mol of Cl

so 8 mol of CCl₄ contains 32 mol of Cl

answer is 32 mol of Cl

\boxed{{\text{32 moles}}} of chlorine are present in 8 moles of {\text{CC}}{{\text{1}}_{\text{4}}} .

Further Explanation:

Mole is a measure of the amount of substance. It is defined as the mass of a substance that has the same number of fundamental units as there are atoms in 12 g of carbon-12. Such fundamental units can be atoms, molecules or formula units.

In {\text{CC}}{{\text{l}}_4} , both carbon and chlorine are non-metals. Carbon has four valence electrons whereas chlorine has seven valence electrons. Both share two electrons with each other and a single covalent bond is formed between a carbon and a chlorine atom. So carbon forms four single bonds with four chlorine atoms in order to complete its octet and the octet of chlorine is also fulfilled. This bond is formed due to sharing of the electrons and therefore {\text{CC}}{{\text{l}}_4} is a covalent compound. (Refer to the attached image)

{\text{CC}}{{\text{l}}_4} is a covalent compound. So 1 mole of  {\text{CC}}{{\text{1}}_{\text{4}}} contains 1 mole of carbon and 4 moles of Cl.

Number of moles of Cl in 1 mole of {\text{CC}}{{\text{l}}_4} = 4

So the number of moles of Cl in 8 moles of {\text{CC}}{{\text{l}}_4} is calculated as follows:

\begin{aligned}{\text{Moles of Cl}}&=\left({8\;{\text{mol}}\;{\text{CC}}{{\text{l}}_4}}\right)* \left({\frac{{4\;{\text{mol}}\;{\text{Cl}}}}{{1\;{\text{mol}}\;{\text{CC}}{{\text{l}}_4}}}}\right)\n &=\boxed{32\;{\text{mol}}}\n\end{gathered}

So 8 moles of {\mathbf{CC}}{{\mathbf{l}}_{\mathbf{4}}}  contain 32 moles of Cl.

Learn more:

1. Identification of ionic bonding: brainly.com/question/1603987

2. Which is a covalent compound? brainly.com/question/2083444

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Ionic and covalent compounds

Keywords: covalent compounds. chlorine, carbon, mole, non-metal, mutual sharing, molecular bond, hydrogen, chlorine, CCl4, brittle, enthalpy of fusion, heat, electricity, conductors, boiling points, positively charged, negatively charged.

What is the theoretical yield of carbon dioxide if H3C6H5O7+3NaHCO3-3CO2+Na3C6H5O7

Answers

hope you get it right....


Theoretical yield indicates the amount of product formed in thereaction in a perfect world. When you are calculating amounts ofproducts using stoichiametry, you are calculating theoretical yield.There should be a starting amount of a reactant for you to workwith in this problem. Without it the only answer you can give is thecoefficient in front of 3CO2= 3 moles of CO2


Can i have a brainliest please


Final answer:

The theoretical yield of carbon dioxide can be calculated using the stoichiometric ratio in the balanced equation for the reaction. It is the amount of product that would be obtained if all reactants were completely converted to product under ideal conditions. The theoretical yield can be calculated by multiplying the amount of the starting reactant by the stoichiometric ratio in the balanced equation.

Explanation:

Theoretical yield is the amount of product that would be obtained from a chemical reaction if the reaction proceeded perfectly and all reactants were completely converted to product. In this case, the balanced equation shows that 1 mole of H3C6H5O7 reacts with 3 moles of NaHCO3 to produce 3 moles of CO2. Therefore, the theoretical yield of carbon dioxide would be 3 times the amount of H3C6H5O7 given.

Example: If 2 moles of H3C6H5O7 are given, the theoretical yield of CO2 would be 3 x 2 = 6 moles.

Note that the theoretical yield assumes ideal conditions and perfect conversion, so the actual yield may be less due to factors like incomplete reactions or side reactions.

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Which equation represents the process of cellular respiration?

Answers

Answer:

C6H12O6 + 6O2 -> 6CO2 + 6H2O + 38ATP

Explanation:

glucose + oxygen gas -> carbon dioxide + water + ATP

Answer:

C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP is the complete balanced chemical formula for cellular respiration.

Find the number of moles of argon in 452 g of argon

Answers

no. of moles = given mass/atomic mass

= 452/40

= 11.3.

Thus, there are 11.3 moles
nó of moles =given mass/molar mass
no of moles=452/39.9
therefore no of moles=11.3moles

Within a particular compound, an atom gives up two electrons. This atom is A. part of a covalent compound.
B. positively charged.
C. negatively charged.
D. not part of an electrolyte.

Answers

Answer:

The correct answer is option B. positively charged.

Explanation:

A positively charged ion is an atom that readily loses its one or more electrons in a compound. Positively charged ion generally has same number of electrons and protons which means they are neutral charge atom. These atoms are generally attracted to negatively charged ion that lack electron in outer shell.

Thus, the correct answer is option. B. positively charged.

It is a positively charges because when an atom gives up electrons it becomes positively charges. Think of it like this.....its being generous so it deserves to be a positive person. ;D. 
It cant be A. because a covalent bond only shares and doesn't give up electrons. Our answer must be an ion.
Its not negatively charged because it didn't gain any.

So our answer is B. positively charged

The addition of sodium chloride to pure water, causes the conductivity to _________.

Answers

The addition of sodium chloride to pure water causes the conductivity to INCREASE. The more NaCl present in the water, the higher the conductivity is because NaCl is an electrolyte. Once dissolved in water, it becomes Na and Cl which are corpuscles that conduct electricity. 

Answer:

its increase got it right

Explanation: