Zinc has a density of 7.10 g/cm3. If a cylinder of zinc weighing 46.77 g is completely immersed in a graduated cylinder that originally contains 33.33 mL of water, what will be the new water level? PLEASE HELP!!!! I NEED TO TURN THIS IN SOON!
The Density of a substance is simply defined as the mass of the subtance per unit volume of the substance i.e
Density = mass /volume
To solve the question given above, we'll begin by calculating the volume of the zinc. This can be obtained as follow:
Density of Zinc = 7.10 g/cm³
Mass of Zinc = 46.77 g
Volume of Zinc =?Density = mass /volume
7.10 = 46.77 / Volume
Cross multiply
7.10 × Volume = 46.77
Divide both side by 7.10
Volume = 46.77 / 7.10
Volume of Zinc = 6.59 cm³Finally, we shall determine the new volume of the water. This can be obtained as follow:
Volume of Zinc = 6.59 cm³ = 6.59 mL
Volume of water = 33.33 mL
New volume of water =?New volume of water = (Volume of Zinc) + (Volume of water)
New volume of water = 6.59 + 33.33
New volume of water = 39.92 mLTherefore, the new volume of water is 39.92 mL
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A student has a balloon with a volume of 2.5 liters at a temperature of 20°C. As the
day warms up to 40°C the student notices their balloon changing size. What is the
new volume of the student's balloon?
approximately 3 liter
because when we round of 2.67it will be 3
The area of a rectangle can be found by multiplying its length by its width. What is the area of a rectangle that is 5.6 cm in length and 9.24 cm wide?
Report your answer with the correct number of significant figures.
Answer:
Area = 51.74cm ²
Explanation:
5.6 × 9.4 = 51.744
Round above answer
= 51.74
What is the proper attitude with which you should approach a laboratory experience
the awnser is : b serious
How can the arrangement of atoms help explain how the white phosphorous and red phosphorous can both be pure phosphorous substances? Cite your evidence
Answer:
white phosphorus is P4 in a tetrahedral shape and there are some really cool videos of it reacting in air and some not very cool ones where it was used militarily it is not stable, it needs to be stored underwater
red phosphorus is a larger more complicated network solid with many more phosphorus and is very stable
they are allotropes of phosphorus
Explanation:
name the following compound Hg2S
Help, please I’m very confused
Answer:
chemical is fire
and ductility is physical
Explanation:
give me brainliest please
what events are typically earthquakes near large bodies of water
Answer:
tsunamis
they are literally water earthquakes that force tons of water ashore and wipes out cities and towns
Energy is absorbed when a material ________ and is released when a material _______.
A. evaporates, melts
B. freezes, melts
C. melts, freezes
D. freezes, condenses
Please answer both 7 and 8
name the first artificially prepared fiber
. nylon
. rayon
. silk
. polymers
Answer:
Nylon
Explanation:
Nylon was the first synthetic fiber made in the "fully synthetic" sense of that term. It was made by Wallace Carothers, an American researcher at the chemical firm DuPont in the 1930s.
What are valance electrons used for?
Answer:
In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.
HELP ME THE WHOLE PAGE !!!! Someone help please
Answer:
In the image below
Explanation:
Hope this helps you :)
Atmosphere pressure is about 100000 Pa. Calculate the force of the Atmosphere on a person whose Surface area is 2.0m
Answer:
The force of the atmosphere 200 KN.
Explanation:
Pressure is the ratio of force applied to the area to which the force is applied.
i.e Pressure = [tex]\frac{Force}{Area}[/tex]
But, Pressure = 100000 pa (100000 N/ [tex]m^{2}[/tex]), and surface area = 2.0 [tex]m^{2}[/tex]
Thus,
100000 = [tex]\frac{Force}{2.0}[/tex]
⇒ Force = 100000 x 2.0
= 200000
Force = 200 KN
The force of the atmosphere 200 KN.
Calcium and Gold (III) Bromide react. Will this reaction proceed?
If it does proceed, write the balanced chemical equation below.
Plants carry out photosynthesis to make sugar from carbon dioxide and water.
True or false?
Answer:
la re spuesta en verdadero
Answer:
True
Explanation:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
what's the FM of chlorine
Answer:
The system can operate on a set level of parts per million (ppm) chlorine, where the set level is automatically maintained.
What would take light the longest to travel across?
Group of answer choices
galaxy
universe
nebula
star
Answer:
Galaxy ?
Explanation:
A balloon occupies 1.50 L with 0.205 mol of carbon dioxide. How many moles would be required to increase the size of the balloon to 5 L?
Answer:
0.683 moles of the gas are required
Explanation:
Avogadro's law relates the moles of a gas with its volume. The volume of a gas is directely proportional to its moles when temperature and pressure of the gas remains constant. The law is:
V₁n₂ = V₂n₁
Where V is volume and n are moles of 1, initial state and 2, final state of the gas.
Computing the values of the problem:
1.50Ln₂ = 5L*0.205mol
n₂ = 0.683 moles of the gas are required
Atomic number of Sodium?
Answer:
11
Explanation:
Answer:
Atomic number of sodium is 11.
Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is ²³Na. The free metal does not occur in nature, and must be prepared from compounds.
Some farmers of vegetables and fruits from flowering plants pay beekeepers to bring their beehives to their land each year. Why is this?
1. Flowering plants rely on pollinators to survive.
2. Flowering plants depend on bees for self-pollination.
3. Bees help protect their crops.
4. Bees eat the sweet nectar of the fruits that grow.
Answer:
option 2nd is correct answer of this question
Some farmers of vegetables and fruits from flowering plants pay beekeepers to bring their beehives to their land each year because flowering plants depend on bees for self-pollination. Therefore, option 2 is correct.
What is self pollination ?Self pollination is the transfer of pollen grains from the anther of a flower to the stigma of the same flower in the same plant or to a different plant that is genetically similar.
Many crops, but not all, self-pollinate. Beans, broccoli, cabbage, carrots, cauliflower, corn, kohlrabi, onions, and peppers are examples. Apples, cherries, peaches, and pears are among the fruit trees that self-pollinate.
Because flowering plants rely on bees for self-pollination, some farmers of vegetables and fruits from flowering plants pay beekeepers to bring their beehives to their land each year.
Thus, option 2 is correct.
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What eventually happens to all the energy in a food web? The energy in a food web finally??????
Answer:
All of the consumers and producers eventually become nourishment for the decomposers.
Explanation:
Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
What is the formula for manganese (IV) bromide?
Answer:
MnO₂
Explanation:
The equation shows the reaction between magnesium and chlorine to produce magnesium chloride.
Mg + Cl2 → MgCl2
Magnesium chloride consists of Mg2+ and Cl− ions.
Describe, in terms of electrons, how magnesium chloride is produced from magnesium and chlorine.
Answer: Mg is a cation and Cl is an anion
Explanation: In more detail, if you look at the periodic table, the group number (or columns) of the elements, describe how many valence electrons, or how many electrons the element has available to have a complete an electron shell. Magnesium being in group 2, it has one 2 electrons that will be "donated" to an anion that it bonds with. However, Chlorine being in group 17, (look at the single digit number for double digit groups), it has 7 valence electrons. Knowing that a full electron shell is usually 8 electrons, it needs only one. Since Magnesium has 2 valence electrons to give away, two atoms of Chlorine gas will then bind to the Magnesium, where the 2 Chlorine atoms will take the electrons to fill their shells. Magnesium Chloride, in terms of charges when in ions, [Mg]2+ and 2 [Cl]-1
Magnesium chloride is formed when magnesium ion formed from the loss of two electrons and two chloride ions formed by accepting one electron each are held together by electrostatic attractive forces.
How is magnesium chloride formed from magnesium and chlorine?Magnesium chloride is an ionic compound which consists of magnesium ions and chloride ions.
A Magnesium atom forms ion by giving up two electronsTwo Chlorine atoms become ions by accepting one electron each.The oppositely-charged ions are attracted to each other.Therefore, magnesium chloride is formed when magnesium ion formed from the loss of two electrons and two chloride ions formed by accepting one electron each are held together by electrostatic attractive forces.
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how do substances change into different substances during chemical reactions
Answer:
Chemical reaction are irreversible. Some of the example of chemical reaction are cooking, rusting, and burning. During a chemical reaction, the composition of substances changes and the particles rearrange to form a new substance. The new substance formed after chemical reaction of substance has different physical and chemical properties.
When a chemical reaction occur, the atoms or molecules of the substances change its physical and chemical properties such as while cooking of vegetable, the molecules of vegetable undergo changes in their properties and form a new substance which is different from the earlier.
What is the solute and solvent in a solution of salt water?
Select one:
a.Water is the solvent; Salt is the solute
b.Water is the solvent; Salt is the solvent
c.Water is the solute; Salt is the solute
d.Water is the solute; Salt is the solvent
Answer:
A
Explanation:
solute- thing being disolved
solvent- thing doing the disolving
so water is a solvent and salt is solute.
which is A
if my answer helps please mark as brainliest.
In the solution of salt and water, Water is the solvent; Salt is the solute. That is option A.
What is a solute and a solvent?A solute is defined as the part of a solution that is being dissolved by the solvent. A typical example of solute is base and salts.
A solvent is defined as the dissolving part of a solution which is usually liquid in form. A typical example is water.
Therefore, the solute and solvent of a solution would be salt and water respectively. That is option A.
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can someone help me pls
Answer:
The heat would flow from the hot solid to the cool solid until all temperatures are near equal.
What is true about the particles in a substance? Select all that apply.
Particles in all states of matter are arranged close
together.
Heating a substance can cause the substance to
change state.
The way particles move changes when the
substance's thermal energy changes.
Particles in all states of matter are constantly
moving.
Submit
Answer:
Heating a substance can cause the substance to change state
The way particles move changes when the substance's thermal energy changes.
Particles in all states of matter are constantly
moving.
Those are all correct and apply to water in all three phases
Elements that do not have full outer electron shells will donate, share, or take from other atoms. Choose the items that have the correct binary ionic formula. (brainliest)
Answer:
Ok...
Answer: YTH/JYG
Explanation:
AI+ZN+H=YTH
Answer:Potassium and sulfur form KS2
Sodium and calcium form Na2Ca
Beryllium and nitrogen form Be3N2
Explanation:
i took the quiz
Imperial shrimp attach themselves to sea cucumbers for transportation. The interaction saves energy and improves food availability for the shrimp. The sea cucumber is not affected by the interaction. What type of interaction exists between the shrimp and the sea cucumber?
commensalism
competition
mutualism
parasitism
please help
Answer:
a
Explanation:
commensalism