The ______ parts of organisms are most likely to become fossils.
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Related Questions
What is the difference between foliated and non-foliated metamorphic rocks
Are these radiation, conduction, or convection?1) In a swimming pool, the water near the surface is slightly warmer. The warm water rises because of _________. 2) The metal skewer gets so hot that you drop your marshmallows in the campfire because of ___________. 3) You lay on that same rock at night so that you can keep warm by _________. 4) The cause of whether systems on Earth is __________. 5) You are in the top bunk of a bunk bed and you want to turn the air conditioner on while your friend on the bottom bunk is fine is caused by __________. PLEASE HELP I NEED THIS TONIGHT!!!
Which formula is an empirical formula?A. N2O4 B. NH3 C. C3H6 D. P4O10
Select all of the characteristics that define matter. A.) Matter has mass. B.)Matter has volume (takes up space). C.)Atoms and compounds are made out of matter. D.) All matter has the same density.
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a) 6.02x10^23 atoms of Mg
Atomic mass of Mg = 24.3 g/mol
# of mols = 6.02 x 10^23 atoms / 6.02 x 10^23 atoms/mol = 1 mol
mass = 1 mol x 24.3 g/mol = 24.3 g
b) 3.01x10^23 formula units of Ca Cl2
Atomic masses
Ca: 40 g/mol
Cl: 35.5 g/mol
Formula mass: 40g/mol + 2x 35.5g/mol = 111 g/mol
# of mols = 3.01 x 10^23 / 6.02 x 10^23 = 0.5 mol
mass = 0.5 mol x 111 g/mol = 55.5 g
c) 12.4 x 10^15 molecules of CH2O
formula mass = 12 g/ mol + 2 g/mol + 16 g/mol = 30 g/mol
# of mols
mass = [12.4 x 10^15 / 6.02 x 10^23]mol x 30 g/mol = 2.1 x 10 ^(-8) g
3)
a) The polar solute is dissolved in water which is a polar solvent, while the non polar solute is not dissolved in water. This is a rule in chemistry: polar solvents dissovle polar soultes and non polar solvents dissolve non polar soluted.
The extremes of the polar molecules are easily solvated by the water molecules.
b) KI is an ionic compound, which implies that it will ioinize (separare in iones) in water, being in this way be dissolved, while the CO2, which is no polar, will not be easily dissolved in water under normal conditions
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Answer:
45.45 ml of dimethyl sulfoxide
Explanation:
density of dimethyl sulfoxide is 1.10 g/10⁻³L which is 1.10 g/mL
now we devise the next reasoning:
If 1.10 g of dimethyl sulfoxide have a volume of 1 mL
Then 50 g of dimethyl sulfoxide have a volume of X mL
X = (50 × 1) / 1.10 = 45.45 ml of dimethyl sulfoxide
Final answer:
To calculate the volume of dimethyl sulfoxide needed, you must divide the mass by the density. With the given values, the resulting volume is approximately 45.45 L.
Explanation:
The subject of this question relates to the concept of density, which is directly related to mass and volume. We can apply the formula Density = Mass / Volume, hence Volume = Mass / Density. The mass provided in the question is 50.0 g and the density of dimethyl sulfoxide is given as 1.10 g×10^-3. Plugging in these values into the Volume equation gives us Volume = 50.0 g / 1.10 g×10^-3, which equals ~45,454.55 mL or approximately 45.45 L.
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increase the temperature
decrease the concentration of NO2(g)
decrease the temperature
decrease the pressure
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The answers A. increase the pressure
Explanation:
find angle ABE.
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Answer:
The measure of angle ABE is 27°.
Explanation:
Consider the below figure attached with this question.
Given information: ∠ABE=2n+7 and ∠EBF=4n-13.
From the below figure it is clear that ∠ABE and ∠EBF are congruent.
Isolate variable terms on one side.
Divide both sides by 2.
The value of n is 10.
We need to find the measure of ∠ABE.
Therefore, the measure of angle ABE is 27°.
The measure of angle ABE is 27°.
Since the angles are congruent, therefore, ∠ABE=2n+7 and ∠EBF = 4n-13 will be equated to each other.
This will be;
2n+7 = 4n-13
Collect like terms
4n-2n = 7+13
2n = 20
Divide both sides by 2.
2n/2 = 20/2
n = 10
Therefore, the value of n is 10.
Since angle ABE = 2n + 7
ABE = 2[10] + 7
= 20 + 7 = 27°.
Therefore, the measure of angle ABE is 27°
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was supported by Galileo
stated that the earth rotated around the sun
all of the above
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Answer:
It is all of the above.
Explanation:
The Heliocentric theory was indeed rejected by many people. Most people were religious and the church believed in the Geocentric theory.
Galileo did indeed support the the theory by using his telescope and observed the moons of Jupiter and saw how they all orbited Jupiter which contributed to the Heliocentric theory.
The Heliocentric theory did believe that the Earth rotated around our sun.