Answers
Answer:
Just in case you want confirmation yes, its mid ocean ridge
Related Questions
Which of the following would be found ONLY in plant cells
Answers
Answer:
chloroplasts, cell walls, or intracellular vacuoles
Explanation:
You didn't list the following, but I'm guessing it is chloroplasts, cell walls, or intracellular vacuoles
The belief that you lose fat mass in a specific body part by concentrating exercise in that area is known as:
Answers
Answer:
Targeted fat loss
Explanation:
Answer:
Spot reduction
Explanation:
<3
Which sentence is a scientific statement?
A.
There is a substance around us that cannot be detected.
B.
Kids should go to school for 12 years.
C.
Experimentation is the best way to obtain knowledge.
D.
Unicorns once existed on Earth.
E.
There are no living things on the Moon.
Answers
B. Kids should go to school for 12 years.
What is a scientific statement?Scientific statements are those statements that must be falsifiable which means that able to be proven false while on the other hand, tautology is a statement that is true. The sun revolves around the earth” is an example of scientific statement because this statement can be falsifiable in the light of evidences and researches. Hypothesis is a statement that may be true or false. We can verify it by doing experiments.
So we can conclude that option B is the sentence that represents a scientific statement.
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how many moles of tin are there in 50 g of tin (II) oxide
Answers
Answer:
Moles of tin = 0.37 mol
Explanation:
Given data:
Mass of tin oxide = 50 g
Moles of tin = ?
Solution:
Number of moles of SnO:
Number of moles = mass/molar mass
Number of moles = 50 g/ 134.71 g/mol
Number of moles = 0.37 mol
We can see there is only one mole of Sn is present in one mole of tin oxide.
Thus in 0.37 mol of tin oxide,
0.37 mol × 1 = 0.37 mol of tin
Evaluate the carbon dioxide molecule. Explain how to determine if double or triple bonds exist in the molecule.
Answers
Answer:
It contain double Bond.
Explanation:
To determine weather the bond is double or triple simply check the electron involved in mutual sharing of an electron if 2 electron takes parts it said to be double or if 3 it said to be triple.
PLEASE HELP
The area in which you live has a particular climate. It also has weather. Which claim describes the difference between climate and weather?
Group of answer choices
Weather is determined by temperature and precipitation, whereas climate is determined only by humidity, air pressure, and wind conditions.
Climate is the condition of Earth’s atmosphere at a particular time and place, whereas weather is the characteristic climate in an area over a long period of time.
Climate is determined by temperature and precipitation, whereas weather is determined only by humidity, air pressure, and wind conditions.
Weather is the condition of Earth’s atmosphere at a particular time and place, whereas climate is the characteristic weather in an area over a long period of time.
Answers
Answer:
Weather is the condition of Earth’s atmosphere at a particular time and place, whereas climate is the characteristic weather in an area over a long period of time.
Explanation:
Weather and climate are two very important conditions that describes the atmospheric overview of a place.
Weather is reported over a short period of time, it is the condition of the atmosphere at a particular time and place.
Climate is reported over a long period of term. The average weather condition of a place over a long period of time is the climate.
The most important control over the climate of a place is the temperature and amount of precipitation it receives over a period of time. Weather conditions is reported using more diverse factors such a temperature, pressure, humidity, precipitation, etc.PLEASE HELP DUE RIGHT NOW!!!!
(03.06 MC)
Why is a depletion of the ozone layer harmful? (2 points)
Select one:
a. It increases chlorofluorocarbons (CFCs).
b. It allows increased amounts of UV radiation to reach Earth's surface.
c. It increases crop yields.
d. It contaminates ground water.
Answers
Answer:
b.
Explanation:
As the ozone layer is essential for nullifying the rays of the sun, without it there would be much more UV radiation.
Will give brainliest
What type of bond is formed between atoms of a molecule of the product of this reaction? How can you determine which type of bond is formed between these atoms?
2 H2(g) + O2(g)⇒ 2 H2O(l)
Answers
Answer:
Explanation:
A decomposition reaction occurs when one reactant breaks down into two or more products. This can be represented by the general equation: AB → A + B. Examples of decomposition reactions include the breakdown of hydrogen peroxide to water and oxygen, and the breakdown of water to hydrogen and oxygen.
Answer:
Covalent bond
Explanation: Hydrogen and Oxygen are both non-metals, with a low difference in electronegativity. They will share electrons.
A template of a Venn diagram representing common and differentiating characteristics of covalent and ionic bonds is shown.
Which of the following characteristics can be written only in space B?
Occurs in substances that have at least one non-metal
Occurs in substances that have a repeating lattice structure
Occurs in substances that have discrete molecular structure
Occurs in substances that have high melting points
Answers
Ionic and covalent bonds can occur in substances that have a repeating lattice structure.
Ionic and covalent bondsIonic bonds are formed when an atom donates electron (s) to another atom. Covalent bonds, on the other hand, are formed when two atoms share electrons to complete their octet states.
Ionic compounds are formed from a combination of metal and non-metal atoms. They usually have crystalline lattice structures with high melting points.
Covalent compounds are formed between non-metal atoms. They can also have lattice structures but generally have lower melting points because the forces holding the molecules together are weaker.
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Answer:
Occurs in substances that have a repeating lattice structure
Explanation:
Calculate: (5.03 x 109) – (42.6 x 108) =
Answers
Answer: x108(5.03x−42.6)
Explanation: Factor 5.03x109−42.6x108
5.03x109−42.6x108
=x108(5.03x−42.6)
when 3.18 g of copper (||) oxide were carefully heated in a stream of dry hydrogen, 2.54 g of copper and 0.72 g of water were formed determine the number of moles of hydrogen atoms which combine with one mole of oxygen atoms
Answers
Answer:
the number of moles of atom is 0.91584
What are the reactants in a chemical equation located? (20 Points)
A. On the right side of the arrow
B. Below the arrow
C. Above the arrow
D. On the left side of the arrow
Answers
on the left side of the arrow
The reactants in the chemical equation located on the left side of the arrow. Option D is correct.
The arrow in the chemical equation represents the direction of the chemical reaction, and it separates the reactants from the products.
A chemical equation is a symbolic representation of a chemical reaction, showing the starting materials (reactants) and the resulting substances (products). The general form of a chemical equation is as follows:
Reactants → Products
Reactants: The reactants are the substances present at the beginning of the chemical reaction. They are the starting materials that undergo a chemical change or reaction to produce new substances. Reactants were written on the left side of the arrow.
Arrow: The arrow in the chemical equation points from the reactants to the products, indicating the direction of the reaction. It symbolizes the transformation of reactants into products during the chemical reaction.
Products: The products are the substances formed as a result of the chemical reaction. They are the new compounds or elements that are produced by rearranging the atoms of the reactants. Products were written on right side of the arrow.
For example, let's consider the combustion of methane (CH₄) in oxygen (O₂) to produce carbon dioxide (CO₂) and water (H₂O):
CH₄ (methane) + 2 O₂ (oxygen) → CO₂ (carbon dioxide) + 2 H₂O (water)
In this chemical equation, methane (CH₄) and oxygen (O₂) are the reactants, and they are located on the left side of the arrow. The products, carbon dioxide (CO₂), and water (H₂O), are located on the right side of the arrow.
Hence, D. is the correct option.
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Which reverses the flow of current through an electric motor?
A brush
B battery
C armature
D commutator
Answers
Answer:
D
Commutator is the answer
Explanation:
The commutator systematically converts the current direction between the rotor and the outer circuit. As the shaft revolves, the commutator converts the course of current in a winding. For a separate armature winding, when a cylinder has reached one-half perfect turn, the winding is now attached so that current passes through it in the reverse of the original direction.
Answer:
D. Commutator
Explanation:
I just took the quiz. credit to the person above me.
if hydrochloride tablets and eno combine what will the reaction
Answers
answer is attached in the image below
Answer:
Hydrochloric Acid
Explanation:
help is science, if you don't know the answer just don't put anything /:
Answers
Answer:
Light
Explanation:
Light is a good example of invisible particles. We cannot see light particles aka photon. We only know the light is present by the objects we see. Because we can only see objects when light reflects from them on our eyes.
[I could only think of one example if I can remember one more I'll edit it down]
Calculate normality and tire of KOH solution , if CN H2 C2 O4 solution , that is nessesary for titration is 0.1050 mol/1 and the Volume is 5.0 ml ; the volume of KOH - solution is 4.5 ml
Answers
Answer:
Normality of KOH = 0.1062 N
Note: The given question is not clearly stated. A related question below is answered and explained;
What is the NORMALITY of a solution of KOH if 45.18 mL are required to neutralize 0.3g of pure oxalic acid H2C2O4 . 2H2O?
Explanation:
Equation of the reaction: 2KOH + H₂C₂O₄.2H₂O --> K₂C₂O₄ + 4H₂O
molar mass 0f KOH = 56 g/mol; molar mass of H₂C₂O₄.2H₂O = 126 g/mol
Number of moles of in 0.3 g of H₂C₂O₄.2H₂O = mass/molar mass
number of moles = 0.3 g / 126 g/mol = 0.0024 moles
From the equation of reaction, 2 moles of KOH are required to neutralize 1 mole of H₂C₂O₄.2H₂O
Number of moles of KOH required to neutralize 0.0024 moles of H₂C₂O₄.2H₂O = 2 * 0.0024 = 0.0048 moles
Molar concentration of 45.18 mL solution of KOH containing 0.0048 moles of KOH = number of moles/volume (L)
molarity of KOH solution = (0.0048/45.18 mL) * (1000 mL/1 L) = 0.1062 mol/L
Normality = n * molarity
where is the number of moles of OH⁻ ions produces from mole of KOH = 1
Normality of KOH = 1 * 0.1062
Normality of KOH = 0.1062 N
(20 POINTS!!) please help me write a short reference page on chemical bonds (anything helps)
•differentiate the characteristics of ionic and covalent bonds
•summarize the steps and rules for naming IONIC and COVALENT bonds
•describe the role an elements charge has in writing and naming bonds
- how do roman numerals change the process of naming ionic compounds
have a good day :)
Answers
Explanation:An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms. ... Ionic bonds form between a metal and a nonmetal. Covalent bonds form between two nonmetals.
QUICK
Which of these is a ball and stick model?
Answers
define effervesence
Answers
Answer:
is the getting out of a gas in a water solution or it the property of forming bubbles
For the hydrolysis of methyl acetate express the rate of reaction in terms of different reactants and products
Answers
Answer:
See explanation
Explanation:
The equation of the reaction is;
CH3COOCH3 + H2O -------> CH3COOH + CH3OH
Now recall that the rate of reaction refers to the rate of disappearance of reactants or the rate of appearance of products. We indicate that reactants disappear by a negative sign placed in front of the concentration term of reactants.
Rate = k -d[CH3COOCH3]/dt
Rate = k d[CH3COOH]/dt
Rate = k d[CH3OH]/dt
Note; i did not write the rate in terms of water because it is a solvent that is present in large excess. Its concentration does not change with time.
#1 - What is a pure substance? *
1 point
two or more atoms held together by chemical bonds
the attractive force that holds atoms together
a sample of matter that has specific chemical and physical properties
a pure substance made up of two or more different types of atoms joined by chemical bonds
#2 - TRUE OF FALSE: Water is a pure substance.
1 point
True
False
#3 - What is an atom? *
1 point
the smallest unit of an element that keeps the properties of that element
the attractive force that holds atoms together
a sample of matter that has specific chemical and physical properties
a pure substance made up of two or more different types of atoms joined by chemical bonds
#4 - What is a molecule? *
1 point
two or more atoms held together by chemical bonds
the attractive force that holds atoms together
a sample of matter that has specific chemical and physical properties
a pure substance made up of two or more different types of atoms joined by chemical bonds
#5 - What is a chemical bond? *
1 point
two or more atoms held together by chemical bonds
the attractive force that holds atoms together
a sample of matter that has specific chemical and physical properties
a pure substance made up of two or more different types of atoms joined by chemical bonds
#6 - TRUE OR FALSE: Molecules are all the same size. *
1 point
True
False
#7 - What is a compound? *
1 point
two or more atoms held together by chemical bonds
the attractive force that holds atoms together
a sample of matter that has specific chemical and physical properties
a pure substance made up of two or more different types of atoms joined by chemical bonds
#8 - TRUE OR FALSE: Compounds never form in a fixed ratio. *
1 point
True
False
#9 - TRUE OR FALSE: The structure of matter at the atomic and molecular levels is too small to observe directly. *
1 point
True
False
#10 - TRUE OR FALSE: A complex molecule may contain a few atoms bonded together. A simple molecule may contain thousands of atoms. *
1 point
True
False
#11 - What is a crystal? *
1 point
two or more atoms held together by chemical bonds
a substance in which the particles are arranged in an orderly, geometric, and repeating pattern
a sample of matter that has specific chemical and physical properties
a pure substance made up of two or more different types of atoms joined by chemical bonds
#12 - TRUE OR FALSE: Diamond and graphite are both made of carbon atoms. *
1 point
True
False
Answers
Answer/Explanation:
#1 - A pure substance is either an element or a compound, making it different from a mixture. A sample of matter that has specific chemical and physical properties is the only one that fits here.
#2 - A pure substance is either an element or a compound, making it different from a mixture. Water is a compound, and thus this would be true.
#3 - An atom is the smallest unit of an element that keeps the properties of that element. Just refer to its definition.
#4 - A molecule is two or more atoms held together by chemical bonds . Again, just refer to its definition.
#5 - A chemical bond is the attractive force that holds atoms together . Jus refer to its definition.
#6 - Molecules are most definitely not all the same size, especially given the huge number of them. This would be false.
#7 - A compound is a pure substance made up of two or more different types of atoms joined by chemical bonds . Just refer to its definition.
#8 - Compounds always form in a fixed ratio, so this would be false.
#9 - If by directly, the problem means with the naked eye, this would be true.
#10 - False. It's reversed.
#11 - A crystal is a substance in which the particles are arranged in an orderly, geometric, and repeating pattern . Just refer to its definition.
#12 -True; to be more specific, they are covalent network solids.
The number of waves that pass a given point in a certain amount of
time is the waves...
Answers
Answer:
100
Explanation:
nsvcscjkvschssvds
formula of preparation of sodium hydroxide
Answers
The chemical formula of sodium hydroxide is NaOH, and its molar mass is 40.01 g/mol. It is the alkali salt of sodium, and its structure is shown below:
It is an ionic compound consisting of sodium cation (Na+) and hydroxide (OH-) anion.
If you put a piece of zinc into a solution of copper (I) sulfate and allow the single replacement reaction to go to completion, how will you know which of the reactants is the limiting reactant? Write the balanced equation, including the states of matter of the reactants and products, to help support your answer.
Answers
Explanation:
Reaction of zinc metal in copper sulfate solution.
[tex]\begin{array}{ll}\text { Oxidation : } & \mathrm{Zn}(s) \rightarrow \mathrm{Zn}^{2+}(a q)+2 e^{-}\\\text {Reduction : } & \mathrm{Cu}^{2+}(a q)+2 e^{-} \rightarrow \mathrm{Cu}(s) \\\hline \text { Full Reaction : } & \mathrm{Zn}(s)+\mathrm{Cu}^{2+}(a q) \rightarrow \mathrm{Zn}^{2+}(a q)+\mathrm{Cu}(s)\end{array}[/tex]
Zinc is listed above copper on the activity series, this means that zinc is more easily oxidized than copper. That is why copper(II) ions can act as an oxidizing agent when put into contact with zinc metal. Ions of any metal that is below zinc, such as lead or silver, would oxidize the zinc in a similar reaction.
which metal can be obtain from calvertie ores?
Answers
Answer:
Ore
hope this helps
thanks for the points
How do Ionic bods form in binary compounds?
Answers
Answer:
Ionic bonding is the complete transfer of valence electron(s) between atoms and is a type of chemical bond that generates two oppositely charged ions. By losing those electrons, these metals can achieve noble-gas configuration and satisfy the octet rule. ...
Explanation:
All matter has both physical and chemical properties.
True or False
Answers
Answer:
F
Explanation:
6.3 moles of water h20
Answers
Answer:
6.3 moles of water = 6.3*18=113.4 grams per mole
Explanation:
Show, in a step by step fashion, your calculations to determine the percent
by volume of a solution that is made by mixing 50 ml of ethanol with 210
ml of water.
Answers
The percent by volume of a solution : 19.23%
Further explanationGiven
50 ml of ethanol
210 ml of water
Required
The percent by volume of a solution
Solution
Percent Volume (% v/v) : volume (ml) of solute/100 ml of solution ⇒ ratio of the volume of the solute to total volume of the solution
[tex]\tt \%solute(v/v)=\dfrac{solute~volume}{solution~volume}\times 100\%[/tex]
solute= Ethanol
solvent=water
Solution = solute+solvent
Total volume of the solution :
[tex]\tt =volume~of~Ethanol+solume~of~water\\\\=50~ml+210~ml\\\\=260~ml[/tex]
Percent by volume :
[tex]\tt \%volume=\dfrac{50}{260}\times 100\%\\\\\%volume=19.23\%[/tex]
A 30 kg wrecking ball was dropped from different heights.
30 kg Wrecking ball
Height dropped
Speed at impact
Energy at impact
Distance Object is moved
Trial 1
5m
9.9 m/s
1470 J
0 cm
Trial 2
7m
11.71 m/s
2058 J
3 cm
Trial 3
15m
17.15 m/s
4410 J
55 cm
Trial 4
25m
22.14 m/s
7350 J
120 cm
What is the relationship between drop height and energy at impact?