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Explain how mass extinctions occur.
Answer:
Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes.
Explanation:
For the reaction: 2Al + 3CuSO4 ---> Al2(SO4)3 + 3Cu
What is the mole ratio of copper to aluminum?
Answer:
the mole ratio of copper to Al is 3:2
what is properties of matter
Explanation:
color (intensive)
density (intensive)
volume (extensive)
mass (extensive)
boiling point (intensive): the temperature at which a substance boils
melting point (intensive): the temperature at which a substance
density
volume
odor
temperature
mass
color
length
malleability
Identify the reaction type and the products. Al+F2 ->
Answer:
redox and AlF2
Explanation:
PLS HELPPP ASAP
According to the Periodic Table of Elements, the neutral atom of what element has 4
protons, 5 neutrons, and 4 electrons?
O A. beryllium
O B. boron
OC. fluorine
D. aluminum
It would be helpful if you could explain the process or do a few to show me how to do it. You don't need to do it all just one would help.
Thank you
Convert 220 grams of CO2 into Moles.
Answer:
. 44.0 g/mol.
Explanation:
Determine el número de moles presentes en una esfera de titaniode 0.5 cm de radio, sabiendo que la densidad del titanio es de 4507kg/m³. =433
Answer:
0.0493 moles de Titanio
Explanation:
Primero, debemos hallar el volumen de la esfera. Usando la densidad podemos hallar la masa de titanio y usando la masa atómica encontraremos las moles de titanio:
Volumen de la esfera:
Volumen esfera = 4/3π * Radio³
Volumen = 0.5236cm³
En m³ (1m³ = 1x10⁶cm³):
0.5236cm³ * (1m³ / 1x10⁶cm³) = 5.36x10⁻⁷m³
Masa en gramos:
5.36x10⁻⁷m³ * (4507kg / m³) = 2.36x10⁻³kg * (1000g / 1kg) = 2.36g de Titanio
Moles -Masa molar Ti: 47.867g/mol-:
2.36g de Titanio * (1mol / 47.867g) =
0.0493 moles de TitanioIf a 2,000-kilogram car accelerates at a rate of 3 meters per second squared,
what is the force the engine applied to the car?
HELP
Answer:
Explanation:
assuming there is no friction
fnet=ma
2,000 kg*3m/s=6,000 N
Is calcium and fluorine
a. Nonpolar covalent
b. Ionic
c. Polar covalent
Answer:
Ionic
Explanation:
A transfer of electrons occurs when fluorine and calcium react to form an ionic compound. This is because calcium is in group two and so forms ions with a two positive charge. Fluorine is in group seven so forms ions with a negative charge.
When white light passes through a prism, what can be discovered?
A)
White light is made invisible by passing through prisms.
B)
White light is made brighter by passing through prisms.
White light is made of a spectrum of various colors.
D)
White light gets hotter when it passes through prisms.
Answer:
White light is made of a spectrum of various colors.
Explanation:
As light passes through a prism, it is bent, or refracted, by the angles and plane faces of the prism and each wavelength of light is refracted by a slightly different amount. ... As a result, all of the colors in the white light of the sun separate into the individual bands of color characteristic of a rainbow.
What Classification type star this?
Explanation:
The Sun is a as a G2V type star, a yellow dwarf and a main sequence star. Stars are classified by their spectra (the elements that they absorb) and their temperature.
whish this helped!
Would you rather travel back in time to learn about your future or learn past life lesson to understand your lifestyle?
If there are 0.090 moles of sugar (C₁₂H₂₂O₁₁) in the average can of soda, how many sugar molecules would this be
Given :
There are 0.090 moles of sugar (C₁₂H₂₂O₁₁) in the average can of soda.
To Find :
How many sugar molecules would this be ?
Solution :
We know, in 1 mole of any compound their are [tex]6.022\times 10^{23}[/tex] molecules of that compound.
So, number of molecules in 0.090 moles of compound is :
[tex]n = 0.090 \times 6.022 \times 10^{23}\\\\n = 5.42\times 10^{22}[/tex]
Therefore, number of molecules in 0.090 moles of compound is [tex]5.42 \times 10^{22}[/tex] .
What element does this atomic model represent?
yo que se wey nose una particula
Which of the activities below does NOT affect the water cycle
Hydroelectricity
Deforestation
Exercising
Greenhouse effect
Answer:
Exercising would not affect the water cycle.
What is the formula mass/molar mass of H2CO2
H - 1.01
C - 12.01
0 - 16.00
2(1.01) + 12.01 + 2(16.00) = 46.03 g/mol
Relative and average atomic mass both describe properties of an element related to its different isotopes. Out of these two Relative atomic mas is more accurate. Therefore, 46.03 g/mol is the formula mass/molar mass of H[tex]_2[/tex]CO[tex]_2[/tex].
What is mass?Mass defines the quantity of a substance. It is measured in gram or kilogram. Average mass is the mass of atoms of an element that are isotopes. It can be calculated by multiplying mass of a isotope to natural abundance of that isotope.
molar mass of Hydrogen - 1.01
molar mass of Carbon- 12.01
molar mass of Oxygen - 16.00
Molar mass =2×molar mass of H +1×molar mass of C+2×molar mass of O
substituting all the values, we get
2(1.01) + 12.01 + 2(16.00) = 46.03 g/mol
Therefore, 46.03 g/mol is the formula mass/molar mass of H[tex]_2[/tex]CO[tex]_2[/tex].
To learn more about mass, here:
https://brainly.com/question/28704035
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What is the reaction change of this chemical equation
C(s)+O2(g) -> CO2(g)
a.single dispalcement
b.double dispacement
c. decomposition
d. synthesis
In a 63.17 g sample of SOs, how many grams are sulfur?
Answer:
25.30 gram
Explanation:
No of moles = given mass / molar mass
No of moles = 63.17/80.06
0.7890 moles
Mass of sulphar = no of moles× molar mass of sulphar
Mass of sulphur = 0.7890×32.065
25.30 gram
if you do 40 J of work on an object move it to meters, you apply ____ newtons of force to the object
Have you figured out the answer yet ?
Answer:
no
Explanation:
Answer:
Not yet!
Note:
Please mark as Brainliest! <3
Based on the illustration below, explain how the different organ systems work together.
__________________________________________
____________
Answer:
this is not a proper informative question
Jay painted the inner four walls of a box. Then he put an ice block into it such that it did not touch the walls, but he couldn't do the same when he put water in that box. Why?
Answer:
Liquid takes the shape of container, so it will always touch the walls of the box in which you put it.
Explanation:
We know that a solid has a definite shape and a definite volume hence it occupies only its own volume in the box, it does not touch the walls of the box.
However, a liquid does not have a definite shape and volume. It occupies the volume of the box. Therefore, the liquid water must definitely touch the walls of the box.
If an object has a Mass of 11g and a volume fo 13mil, what is its density?
A.143g/ml
B.0.85g/ml
C.2g/ml D.24g/ml
Answer:
[tex]\boxed {\boxed {\sf B. \ d \approx 0.85 \ g/mL}}[/tex]
Explanation:
Density is found by dividing the mass by the volume.
[tex]d=\frac{m}{v}[/tex]
The mass of the object is 11 grams and the volume is 13 milliliters.
[tex]m= 11 \ g \\v= 13 \ mL[/tex]
Substitute the values into the formula.
[tex]d= \frac{11 \ g}{13 \ mL}[/tex]
Divide.
[tex]d=0.846153846 \ g/mL[/tex]
Round to the nearest hundredth. The 6 in the thousandth place tells us to round the 4 to a 5.
[tex]d \approx 0.85 \ g/mL[/tex]
The density is about 0.85 grams per milliliter.
6 grams of sodium chloride (NaCl) is dissolved to create 0.5 L of solution. What is the
molarity of this solution?
Answer:
0.206M
Explanation:
Molarity, which refers to the molar concentration of a substance can be calculated using the formula as follows:
Molarity (M) = number of moles (n) ÷ volume (V)
According to the provided information, mass = 6grams, volume = 0.5L
Since molar mass of NaCl = 23 + 35.5
= 58.5g/lol
Mole = mass/molar mass
Mole = 6/58.5
Mole = 0.103mol
Hence;
Molarity = 0.103/0.5
Molarity = 0.206M
What provides the energy to set the water cycle in motion?
Nothing, the water cycle does not need energy.
Clouds
Sun
Water.
pls help i give brainest
Which best describes what occurs when heating a compound containing a
metal in the flame of a Bunsen burner?
1)Forms new atoms in the compound. When these new atoms are formed in the
compound, thes release energy as colored light.
2)Can destroy atoms in the compound. When the atoms of the compound are
destroyed, this gives off energy in the form of heat and colored light.
3)Can cause electrons in some of the metal atoms to move further away from the
nucleus. When these excited electrons return to their original locations, energy is
given off in the form of colored light.
4)can cause new nonmetal atoms to be formed in the compound. These new nonmetal
atoms release energy in the form of colored light when they are created.
Answer:
Heating compound containing a metal can cause electrons in some of the metal atoms to move further away from the nucleus.
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TAKE CARE
Explanation:
what are atoms? please answer me fast i need help
Explanation:
an atom is the smallest unit of ordinary matter that forms a chemical element every solid liquid gas and plasma is compost neutral or ionized atoms. atoms are extremely small typically around 100 picometers across.
Hope it will help you
For the reaction
? P4+? S8 - ? P4S10
what is the maximum amount of P4S10 which
could be formed from 15.29 g of P4 and 17.66 g
of Sg?
Answer in units of g.
Please hurry it’s due today and include the steps if you can
If 3.50 moles of sodium chloride is added to your food, how many grams is added?
Answer:
204.8g
Explanation:
The number of moles of a substance is related to its mass and molecular mass as follows:
mole (n) = mass (m) ÷ molar mass (MM)
According to this question, 3.50 moles of sodium chloride (NaCl) is added to a food.
Molar mass of NaCl = 23 + 35.5
= 58.5g/mol
Using mole = mass/molar mass
Mass = molar mass × mole
Mass = 58.5g/mol × 3.5mol
Mass = 204.75
Mass = 204.8grams.
Therefore, 204.8grams of NaCl or common salt was added to the food.