Answers
Answer:
its b , Symmetrical and nonpolar
Explanation:
Its c
Answer:
Explanation:
Related Questions
If a Maritime Tropical Air mass begins in the Southern United States and keeps traveling North directly over the central USA, will it remain a Maritime Tropical air mass? Why?
Answers
Answer:
If a Maritime Tropical Air mass begins in the Southern United States and keeps traveling North directly over the central USA, it will turn into a polar air mass.
Explanation:
because Northern USA is colder than the South :)
Using the empirical formula, calculate the formula weight of the compound. Use the periodic table to help you.
Type the correct answer in the box. Round your answer to three decimal places.
Answers
Answer:
The formula weight of the compound is
46.069 g/mol.
Explanation:
Determine the molar mass from the empirical formula (C2H6O) by multiplying the molar mass of each element in the compound by the number of atoms of it and adding the resulting masses of the elements:
molar mass of C2H6O = (2 × 12.011 g/mol) + (6 × 1.008 g/mol) + (1 × 15.999 g/mol) = 46.069 g/mol.
About how old is the Sun?
1.2 billion years
4.6 billion years
6.4 billion years
8.2 billion years
Answers
Answer:
B : 4.6 billion years
Credits go to the person above me.
;)
Explanation:
EDGE 2021
The sun is about 4.6 billion years old. Therefore, option (B) is correct.
What is the sun made of?The Sun is made primarily of the elements hydrogen and helium. They account for 74.9% and 23.8% mass of the Sun in the photosphere. All heavier elements, called metals account for less than 2% of the mass, with oxygen (<1%), carbon (0.3%), neon (0.2%), and iron (0.2%) being the most abundant.
The hydrogen and helium in the Sun would have been produced by Big Bang nucleosynthesis and the heavier elements were produced by former generations of stars before the Sun was formed.
The amount of helium and its location within the Sun has gradually changed over the past 4.6 billion years. The proportion of helium has raised from about 24% to 60% due to fusion, and some of the He and heavy elements have settled from the photosphere toward the center due to gravity.
Therefore, the age of the sun is about 4.6 billion years.
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How can you measure the volume of an irregular shaped solid?
Answers
Answer:
If the object has an irregular shape, the volume can be measured using a displacement can. The displacement can is filled with water above a narrow spout and allowed to drain until the water is level with the tap. As the irregular object is lowered into the displacement can, the water level rises.
Explanation:
1. Find the mass of 0.89 mol of CaCl2.
Answers
Answer:
97.9
Explanation:
m= n*M
M CaCl2= 40+ 35.5*2= 110
m= 0.89*110= 97.9
The mass of the given mole of [tex]CaCl_2[/tex] is required.
The mass of the given compound is 98.78 g.
Molar mass of [tex]CaCl_2[/tex]
[tex]M=40.078+35.453\times 2=110.984\ \text{g/mol}[/tex]
n = Number of moles = 0.89 mol
Mass is given by
[tex]m=Mn\\\Rightarrow m=110.984\times 0.89\\\Rightarrow m=98.78\ \text{g}[/tex]
The mass of the given compound is 98.78 g.
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Solid iron pellets are heated, melted and drawn into wires. This is an example of a chemical reaction
True
False
Answers
Answer:
false
Explanation:
It is a physical reaction because it is being heated.
Answer:
False
Explanation:
Just because the iron was melted into wires does not mean that it isn't iron. It is still iron just in a different form.
i need help asap :( i’ll give you brainliest
Answers
Answer:
a.0.837 moles of silver phosphate
b. 14.55
c. 2.61
Explanation: it is all about the molar ratio so the numbers of front of the molecular formulas there is a 3 in front of the silver nitrate and the other 2 we are asked abuoit have no number so that is a 1 so you are multiplying or dividing by that ratio whichever way you go
What are the elements in group 1 of the
periodic table called?
Answers
Answer:
there called alkali metals
Answer:
alkali metals.
Explanation:
Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
what is an example of a combustion reaction
if possible, can it come with an explanation pls
Answers
Answer:
An example of a combustion reaction is the burning wood in a fire.
Explanation:
In the combustion reaction, the carbohydrates in wood combine with oxygen to create water and carbon dioxide. This reaction is very energetic, and it generates heat and light as it releases said energy.
Hope this helps! Have a nice day! (And please mark me brainliest)
What is the name of the the multi valence compound SnH4?
Answers
~ Hope this helps!
The moon stays in orbit around the Earth because of the Earth's
Answers
Answer:
Gravity
Explanation:
how many oxygen molecules are in 5.17g of oxygen gas
Answers
Answer:
is cool is cool goodcripopo
Can someone pls help me?
Answers
Answer:
17
Explanation:
what is the independent variable
Earth's surrounding atmosphere (all of the air in the world) is part of its __________.
A. biosphere
B. food chains
C. Niche
D. population
Answers
Answer:
im an idiot but i think its A
if im wrong im so sorry
Explanation:
What number should replace the question mark to show the number of C6H1206 (glucose) molecules in a balanced
chemical equation?
Answers
Skill and
Serina is a ballet dancer. During her dance, she dances in a "Z" pattern on the stage. It takes her about 30 seconds to
complete the ®Z." The top and bottom of the "Z" are equal distances of about 3 meters each. The middle part of the "Z"
is about 6 meters long. How quickly (in meters per second) is she traveling during this part of the dance?
Answers
Answer:
2.5 m/s
Explanation:
total of 12 meters in 30 seconds
12x2.5=30
4. (10 Points) Why would a mixture of gases in a 5 L balloon react faster than a
mixture of the same gases in a 10 L balloon?
Answers
Answer:
There is more space in a balloon with less gases meaning it can move around a lot faster
Explanation:
hi please help, i will give 100 points
Answers
Explanation:
Boiling water:water heats up and bubbles physical change
Baking a cake: starts to cook into bread chemical change
Burning wood: turns into ash and burned wood chemical change
Painting a door: door changes color physical change
Answer:
water is yummy
Explanation:
PLEASE HELP!!!What are the factors of climate change
Answers
Answer:
According to The genic variations in atmospheric compositions and proper use of land or the other factors the cahs climate change
Boyles Law-
Variables that change:
Variables that remain constant:
Charles Law-
Variables that change:
Variables that remain constant:
Answers
Answer:
Boyles Law-
Variables that change: volume and pressure
Variables that remain constant: Temperature
Charles Law-
Variables that change: volume and temperature
Variables that remain constant: pressure
Explanation:
What is known as the downhill movements of masses of rock and soil?
A. Mass wasting
B. weathering
c. giant erosions
Answers
Answer:
b
Explanation:
Answer:
Gravity drives all mass wasting.
Explanation:
How many molecules are in 0.25 mole of CO?
Answers
1.5 x 10 to 23rd power
What is the name of the following ionic compound?
AlF3
ASAP QUICCKKKM
Look at picture
Answers
Aluminum fluoride is the name of the following ionic compound. The recognised authority on chemical terminology and nomenclature is IUPAC.
IUPAC is the widely acknowledged authority on chemical terminology and nomenclature, and two IUPAC organisations play key roles in this activity: The Interdivisional Commission on Terminology, Nomenclature, as well as Symbols and Division VIII - Chemical Nomenclature or Structure Representation. Unambiguous, uniform, and reliable nomenclature as well as terminology for particular scientific fields are developed by IUPAC as one of its main activities. These recommendations are typically presented as glossaries of terms for particular chemical disciplines. Aluminum fluoride is the name of the following ionic compound.
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Aluminum has metallic bonds between its atoms. Which statement BEST describes the
valence electrons in aluminum?
are exchanged with nonmetal atoms
are exchanged with other metal atoms
are localized and stay between metal atoms
are delocalized and move between metal atoms
Look at picture
ASAP please will mark as brainlist don’t got much time
Answers
Answer:
are delocalized and move between metal atoms
Explanation:
As the problem says, aluminum has metallic bonds. The main characteristic of metallic bonds is that the electrons are free to move between the metal ions (they are delocalized), thus being responsible for the good electrical conductivity of metals.
In a series circuit with 5 light bulbs if the battery has a current of 10 A how much current is in the first light bulb
Answers
Answer:
10A because they are series
what word means to bend light rays toward each other
Answers
Hdjdhjsj
help me with this question please !
Answers
Answer:
its C
Explanation:
Wind turbines work on a simple principle: instead of using electricity to make wind—like a fan—wind turbines use wind to make electricity. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity.
Answer: I wanna say B
Explanation:
It makes the most scenes out of all of those answers let me know if im right:)
The transfer of pollen grains from another of a male to the stigma of female flower
Answers
Answer:
pollination is the proces called
What can describe the form of precipitation
Answers
Do you have a picture/answer choices?
Some forms of precipitation are rain, sleet, snow, and hail, if that's what you were asking for.
Which is the best explanation of why heat is released when
wood burns?
Select one:
A. Burning releases energy stored in chemical bonds.
B. Burning creates energy by increasing particle motion.
C. Burning destroys matter and creates energy from it.
D. Burning causes convection currents which create heat energy.