Answer:
i dont know bcoz i am not in 10 class
Explanation:
Answer:
The type of RNA that contains the information for making a protein is called messenger RNA .
Explanation:
(mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm
If one mole of nitrogen is used how many liters of hydrogen are needed
Answer:
300
Explanation:
help meeeee
I require someone WITH braincells
22 How does Earth's tilt affect climate?
OA. smaller the tilt, the warmer the summer.
OB. The smaller the tilt, the smaller the temperature difference is between summer and winter.
OC. The larger the tilt, the warmer the summer.
OD. The larger the tilt, the smaller the temperature difference is between summer and winter.
Why are fossils not found in igneous or metamorphic rocks?
Answer:
Because the rock underwent lava and heat/pressure transformation. They are cooled and heated by magma, and then under go pressure. No fossils would be found in those.
Explanation:
Hope this helps! :)
Answer:
Because...
Explanation:
Igneous rock is cooked in extreme hot temperatures.
Metamorphoc is lava cooled downed.
1. List 3 physical and chemical phenomena
Answer:
Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Often, physical changes can be undone, if energy is input.
Hope this helped.
How many cubic centimeters are in the block? if the length is 1, the width is 1 and the height is 1?
Answer:
Volume = [tex]1cm^3[/tex]
Explanation:
Volume of cube = [tex]s^{3}[/tex]
Wherein,
s = length of side
Hence,
If the length of each side is 1cm,
Volume = [tex]1^3[/tex]
= 1[tex]cm^3[/tex]
The following symbol (<-->) means
Answer:
Greater than or less than
why do atoms combine to form compund?
Answer:
See below
Explanation:
The following reasons tell why atom combine to form compounds:
1) They want to follow octet or duplet rule and attain the noble gas configuration.
2) They combine to form compounds because of the electrostatic attraction between them.
3) They form compounds to lower their energy and to become stable.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH18074. How many liters of solution would be needed in a 4.5M solution that contains
101.1g of KNO3?
Light-colored moths blend with light-colored tree bark in their environment. A moth with a dark- colored variation blends with dark-colored tree bark but stands out against light-colored bark. What environmental change would give the dark-colored moth in the picture an adaptive advanage and enhance its survival?
A. The dark-colored moth will have an advantage if it begins to feed at night.
B. If the climate warms, dark-colored moths will absorb more heat.
C. Light-colored moths will be killed more readily if the climate cools.
D. If a change in the environment causes most of the trees to darken, the dark-colored moth will have an advantage.
Which of the following is a homogeneous mixture?
A. beef stew
B. melting
C. rusting
D. cutting
Answer:
B. Melting
Explanation: Process of elimination
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What type of chemical reaction is
2Al(s) + + 3Cl2(g) – 2AlCl3(s)
Answer:
It's a redox reaction.
will gravitational force change based on a change of mass or a change of distance between objects
Answer:
The size of the gravitational force is proportional to the masses of the objects and weakens as the distance between them increases.
explain why the constellations in the night sky change with the seasons
Answer:
Explanation:
If observed through the year, the constellations shift gradually to the west. This is caused by Earth's orbit around our Sun. In the summer, viewers are looking in a different direction in space at night than they are during the winter.
How many hours are in 188 years
Answer: about 1,705,536 hrs
24 hrs = 1 day
189 hrs = 1 week
756 = 1 month
9072 = 1 yr
1,705,536 = 188 yrs
Explanation:
Trust Milky. Milky smart
a nonliving substance found in earth crust
Answer:
Dirt
mud
rocks
ect.
Explanation:
6. Which of the following is not a characteristic of electromagnetic light waves?
O A. They can be reflected and refracted.
O B. They travel at the same speed through any one material.
O C. They can't travel through a vacuum.
O D. They obey the formula velocity = wavelength x frequency
Answer:
B. They travel at the same speed through any one material.
Explanation:
Chemistry: Atoms and elements. having trouble figuring out how to find out what element these atoms represent any help will be apreciated.
Answer:
Elements are types of atoms that have a unique number of protons. In fact, from left to right, the periodic table is arranged by the number of protons that each element contains. oms make up matter. An atom is the smallest unit of matter that retains all of the chemical properties of an element.
Explanation:
Cu2(s)+O2(g)=Cu2O(g)+SO2(g)
please help urgent will give brainiest
Answer:
2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2
Explanation:
2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2
The image shows sedimentary rock layers with index fossils and a fault.
Which statement accurately describes the rock layers?
Layer 8 is older than layer 1.
Layer 3 is younger than layer 6.
Layer 4 and layer 10 are the same relative age.
Layer 2 and layer 9 are the same relative age.
Answer:
Layer 2 and layer 9 is the same relative age since it is the same type of rock and has the same fossils.
Hope this helped!
What causes one water molecule to stick to another water molecule?
Answer:
Hydrogen Bonds Make Water Sticky
Explanation:
This sticking together of like substances is called cohesion. Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive.
Chlorine exists as a gas, and iodine exists as a solid at room temperature. What explains the difference in the physical states of the substances at room temperature?
The intermolecular attractions are weaker with chlorine than iodine.
The intermolecular attractions are stronger with chlorine than iodine.
Chlorine has more electrons than iodine..
Chlorine has less protons than iodine.
Answer:
The correct answer is B)The intermolecular attractions are stronger with chlorine than iodine.
Explanation:
Have a nice Day
Answer:
cfvghjnmkljhgtfaASDFGVBHNJNGFDXZVBRNHT45RFD
Explanation:
Loggerhead turtles live and migrate around the Atlantic Ocean. Which of the following is an adaptation of Loggerhead turtles? *
Order the items below from largest to smallest size.
ITEM BANK
1 atom of oxygen
1 mole of oxygen
1 molecule of oxygen
3.01 X 1023 atoms of oxygen
4 grams of oxygen
1_
2_
3_
4_
5_
Answer:
1- gram of oxygen, 2- 3.01x1023 atoms of oxygen, 3- 1 molecule of oxygen, 4- 1mole of oxygen, 5- 1atom of oxygen.
Emma wrote, 'My investigation was good' , as her conclusion.
Philip said this was not a scientific conclusion.
Explain why Emma's conclusion is not scientific
Answer:
Emma's conclusion is not scientific. She is stating an opinion because she thinks her investigation was good which is not necessarily scientific.
The percentage composition of acetic acid is found to be 39.9% C, 6.7% H, and 53.4% O. What is the empirical formula of acetic acid?
Answer:
CH₂O
Explanation:
From the question given above, the following data were obtained:
Carbon (C) = 39.9%
Hydrogen (H) = 6.7%
Oxygen (O) = 53.4%
Empirical formula =?
The empirical formula of acetic acid can be obtained as follow:
C = 39.9%
H = 6.7%
O = 53.4%
Divide by their molar mass
C = 39.9 / 12 = 3.3
H = 6.7 / 1 = 6.7
O = 53.4 / 16 = 3.3
Divide by the smallest
C = 3.3 / 3.3 = 1
H = 6.7 / 3.3 = 2
O = 3.3 / 3.3 = 1
The empirical formula => CH₂O
Thread-like structures that are found in the nucleus of a cell that contains all DNA.
A.) DNA
B.) Genes
C.) Chromosomes
D.) Nucleus
why is cardboard, paper, or ceramic a better choice for coffee mugs?
How many liters would 18.0 grams of water vapor occupy at 273 K and 1.00 atm?
Answer:
22.41 Liters
Explanation:
Using the general law equation;
PV= nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K)
According to the information provided in this question,
mass of water vapor = 18g
Molar mass of water (H2O) = 1(2) + 16 = 18g.
mole = mass/molar mass
- mole (n) = 18/18 = 1mol
V = ?
T = 273K
p = 1 atm
Using PV = nRT
V = nRT/P
V = 1 × 0.0821 × 273/1
V = 22.41 Liters
Put each equation under the correct heading.
What is used to contain an acid spill and what are the characteristics of them?
calculate the mass of 0.5mols of CH3COOH
Answer:
30 g
Explanation:
In order to convert from moles of CH₃COOH to grams, we need to use its molar mass:
Molar mass of CH₃COOH= (Molar Mass of C)*2 + (Molar Mass of H)*4 + (Molar Mass of O)*2 = 60 g/molNow we convert moles into grams:
0.5 mol * 60 g/mol = 30 gSo 0.5 moles of CH₃COOH have a mass of 30 grams.