Answer
Colonizing Mars will be beneficial as it will provide numerous economic, technological, and societal benefits. For example, colonizing Mars could be a step towards fixing the inevitable overpopulation problem.
Explanation:
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.
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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What do the arrows in the diagram tell you about the molecule?
A. Boron is more electronegative than Fluorine.
B. The molecule is polar.
C. The bonds are nonpolar.
D. Fluorine is more electronegative than Boron.
Answer:
A
Explanation:
#keep learning hope makatulongHow do you find the number of neutrons from a nuclide symbol?
Subtract the atomic number from the mass number.
Add the atomic number and the mass number.
Multiply the atomic number and the mass number.
Divide the mass number by the atomic number.
subtract the atomic number from the mass number
hope that helps^^
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
how could you check that when the calcium carbonate is reacting with hydrochloric acid the gas given off is carbon dioxide
Answer:
CaCO3 + 2 HCl => CaCl2 + CO2 + H2O
Explanation:
CO2 will burst out when the reaction occurs in water, and the ions will be dissociated: Ca(2+) + 2 Cl (-)
2. How old are the oldest fossils? Oldest rocks?During what period were these found?
IT
Answer:
Fossils: 3.5 billion. Rocks: 4.28 billion
they were found during Haden Eon
Explanation:
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.
How many moles are in 12.15 g of Mg?
(2 decimal places)
[tex]12.15 \: g \times \frac{1 \: mol}{24.305 \: g} = 0.4998971405 \: mol[/tex]
[tex] = 0.50 \: mol[/tex]
How do acid, base, and salt differ?
In your own words, define a fire.
What is a fire?
Answer:
Fire is something that's red and sorta orange is hot and can burn you but fire can be good and bad at some points for example fire can be used as a campfire,fireplace at home,and lighting candles. Fire is also very dangerous tho ,you can burn yourself if your not careful it can light your house on fire and that wouldn't be very safe. In simple words i would say fire is something that can have advantages and disadvantages.
Ahhh hope thats alright im on online classes but i wanted to help!!
Answer:
This would depend on the intensity or the size of a fire.
Explanation:
For instance, a small fire could be described as: kindled, flickering, dancing (in the case of a candle flame), smoldering, or crackling.
A medium size fire, such as a camp fire or a fireplace could be described as: crackling, blazing, burning, or roaring.
While a large or very intense fire (such as a forest fire or a house fire) could be described as: roaring, blazing, burning out of control, consuming, raging, or destroying.
If you were more looking for synonyms of ‘fire’, here are a few of my favorites: flame, blaze, incinerate, immolation, and inferno. (Edited to add a few I remembered: pyre, conflagration, and scorching.)
Why might changes in the Arctic affect the climate across the globe?
Answer:
Melting ice speeds up climate change.
Explanation:
The Arctic helps to regulate the world's temperature, so as more Arctic ice melts the warmer our world becomes.
Construct an explanation using Newton's Laws of Motion to describe the effects of balanced and unbalanced forces
on the motion of an object.
Answer:
newton's 3 laws state:
- an object in motion stays in motion (unless an external force acts on it)
- every action has an opposite but equal reaction
- force= mass x acceleration
Which of these statements is false?
A.
Atoms of different elements can combine to form compounds.
B.
Oxygen and copper are examples of elements.
C.
Atoms of different elements are the same.
D.
Elements are pure substances.
Answer:
Answer is C atoms of different elements are the same
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.
Learn more about solvent here:
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Please answer both 7 and 8
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
Energy is absorbed when a material ________ and is released when a material _______.
A. evaporates, melts
B. freezes, melts
C. melts, freezes
D. freezes, condenses
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.
The population of Yuba City, California is 61,360 people. What is 61,360 rounded to the nearest thousand? *
Answer:
61,000
Explanation:
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 is biogeochemistry? Group of answer choices
Explanation:
: of or relating to the partitioning and cycling of chemical elements and compound's between the living and nonliving part's of an ecosystem.
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.
To learn more about the self pollination, follow the link;
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What is isostatic rebound in simple words?
Explanation:
Isostatic rebound (also called continental rebound, post-glacial rebound or isostatic adjustment) is the rise of land masses that were depressed by the huge weight of ice sheets..
What is the proper attitude with which you should approach a laboratory experience
the awnser is : b serious
HELP ME THE WHOLE PAGE !!!! Someone help please
Answer:
In the image below
Explanation:
Hope this helps you :)
What would take light the longest to travel across?
Group of answer choices
galaxy
universe
nebula
star
Answer:
Galaxy ?
Explanation:
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.
How is Earth’s outer layer different from a cracked hard-boiled egg?
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