Answers
Answer:
igneous rock is the correct answer
Related Questions
How many more electrons does each oxygen atom need to be stable?
Answers
Calculate the mass percent of H in C3H8O3.
%
Answers
Answer:
because of it being that you have inferno dragon plsss
HELP!! please choose all the correct answers, picture attached
Answers
Answer:
Only C. is wrong else every option is correct.
Explanation:
Hope this helps you. If you want explanation then ask in comments. Good luck!
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If F1 is equal to F2 and F4 is greater than F3, which statement is correct?
An unbalanced force will move the box up.
An unbalanced force will move the box down.
Several balanced forces will keep the box stationary.
Several balanced forces will keep the box moving towards the right.
Answers
"An unbalanced force will move the box down"
I could be wrong but I tried
And it's ok if you don't give brainliest to me
But I hope this helped:)
Have a wonderful day!
1. Since the electron has a negative electric charge and the nucleus has a positive
electric charge, where would you expect to find electrons in atoms?
Answers
The mass of 1 mole of phosphorus atoms is how many
grams.
Answers
Answer:
approximately 30 g.
The mass of 1 mole of phosphorus atoms is approximately 30 g.
Explanation:
Hope this helps.
A solution made from pure Potassium hydroxide contained 1.85 g of Potassium hydroxide in exactly 200 cm3 of water. Using phenolphthalein indicator, titration of 20.0 cm3 of this solution is carried out v/s sulphuric acid. 9.35 cm3 of sulphuric acid solution is required for complete neutralisation. [atomic masses: K= 39, O = 16, H = 1]
(a) write the equation for the titration reaction.
(b) calculate the molarity of the Potassium hydroxide solution. (c) calculate the moles of Potassium hydroxide neutralised. (d) calculate the moles of sulphuric acid neutralised.
(e) calculate the molarity of the sulphuric acid.
Answers
The concentration of H2SO4 is 0.176 M. The number of moles of H2SO4 is 0.0165 moles.
The equation of the reaction is;
2KOH(aq) + H2SO4(aq) ------> K2SO4(aq) + H2O(l)
The number of moles of KOH = 1.85 g/56 g/mol = 0.033 moles
concentration = number of moles /volume
volume = 200 cm3 or 0.2 L
concentration of KOH = 0.033 moles/0.2 L = 0.165 M
From the titration formula;
CAVA/CBVB =na/nb
CA = concentration of acid
VA = volume of acid
CB = concentration of base
VB = volume of base
na = number of moles of acid
nb = number of moles of base
Making CA the subject of formula;
CA = CBVBna/VAnb
CA = ?
CB = 0.165 M
VA = 9.35 cm3
VB = 20.0 cm3
na = 1
nb =2
CA = CBVBna/VAnb
CA = 0.165 M × 20.0 cm3 × 1/9.35 cm3 × 2
CA = 0.176 M
The concentration of sulphuric acid is 0.176 M
From the reaction equation;
2 moles of KOH reacts with 1 mole of H2SO4
0.033 moles of KOH reacts with 0.033 moles × 1 mole/2 moles
= 0.0165 moles of H2SO4
Learn more: https://brainly.com/question/24556237
What element does “X” represent in Figure 1?
Helium
Krypton
Neon
Argon
Answers
Answer:
Argon
Explanation:
It's atomic number is 18
hope that's it
What is the word "love" really mean to someone? when do you know when the time is right
Answers
The penalty for not voting in New South Wales is a $55 fine. You must respond within 28 days of the issue date of the notice. You will have four options: If you voted, you can provide details of where and when using our non-voter self-service portal.
how do you determine the total number of Valence electrons that are used to make a particular lewis structure for a compound or an ion?
Answers
Answer:
The number of valence electrons of an element can be determined by the periodic table group (vertical column) in which the element is categorized.
Explanation:
Hope it helps!
How many grams of NaBr must he measure out to have 4.20 moles?
Answers
Answer: 432 grams
Explanation:NaBr must he measure out to have 4.20 moles.
Which factor causes Earth’s seasons?
Answers
Answer:
The sun's position near earth
Explanation:
Help please!! I thought it was 374.8 but it keeps saying to check my significant digits
Answers
Answer:
ok
Explanation:
i am doing now so
help meeee I BEG YOU!
Answers
E brainliest
The tides of the oceans and large lakes that occur on Earth are caused by_______
The gravitational pull from the moon and sun
The earth’s rotation
Answers
Answer:
The gravitational pull from the moon and sun
Explanation:
Answer: gravity
Explanation:
Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).
A rectangular block weighs 121g. The dimensions of the block are 9.1cm by 5.4cm by 2.3cm. From this data, what us the density of the block in g/mL? Will tge block float or sink in water and how do you know? Show all your work on a piece of paper.
Answers
The density of the rectangular block is 1.07 g/mL.
From the question, we have the mass of the rectangular block as 121g
The dimensions of the block are given as follows;9.1cm by 5.4cm by 2.3cm
So we have the volume of the block as; 9.1cm × 5.4cm × 2.3cm = 113 cm^3
Let us recall that; 1 cm^3 = 1 mL, so 113 cm^3 = 113 mL
Having said that, we must also remember that;
Density = Mass/volume
Density = 121g/113 mL
Density = 1.07 g/mL
Learn more: https://brainly.com/question/9196460
If I have 1000ml of water and 10 ml of water, which will have the greater density? Why?
Answers
Answer:
1000 ml
Explanation:
hope it helpssssssss
Answer:
1000 ml because the bigger ml the greater density brainliest pls
PLEASE HELP!!!!!!!!!!!!!
Which option would be an appropriate model of nuclear fission?
A. dividing a stack of paper equally between two people
B. taking a teaspoon of sugar from a bowl
C. disturbing a drop of water such that it breaks into smaller droplets
D. cutting a cake in half
Answers
Answer:C
Explanation:
from the illustration of the potassium atom fill in the periodic table selection
Answers
Answer:
2 electrons
8 electrons
8 electrons
1 electron (just count in the rings for these ones)
19 protons (it says "P=19" in the middle. The P stands for Protons)
K (it's from Latin medieval Latin "kalium")
39 (add proton and neutron amounts to get the approximate atomic mass--electrons are negligible)
Explanation:
Which of these mixture is a solution
Answers
Answer:
A. Sugar and water
Explanation:
Because water can dissolve sugar
Which of the following resources can be obtained from the hydrosphere?
Answers
HOPE THIS HELPS YOU!!!!!
A substance that flows is called a
Answers
Answer: a fluid???
Explanation: Sorry if it is wrong but i think that is right
Yo can someone explain the heat of fusion and heat of vaporization thing to me?
Answers
Answer:
The heat of fusion is the amount of energy required to change a solid into a liquid at its melting point. When a liquid becomes a solid, freezing or solidification has occurred. The heat of vaporization is the energy required to change a liquid into a gas at its boiling point.
Explanation:
Explain how conditions in the mantle crate a conventional current
Answers
Answer:
As the warmer material rises, it also cools, eventually pushed aside by warmer rising material and sinking back toward the core. Mantle material flows slowly, like thick asphalt or mountain glaciers. While the mantle material remains solid, the heat and pressure allow convection currents to move the mantle material
Can anyone help me with this?
Answers
Answer:
Label 2
Explanation:
Earth is about 2/3 of the way up the Orion Arm of the Milky Way Galaxy
Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide.
Which statement best describes these three components of air?
O Oxygen, nitrogen, and carbon dioxide are all classified as pure substances.
Oxygen, nitrogen, and carbon dioxide cannot react with another substance.
Oxygen, nitrogen, and carbon dioxide are chemically bonded to one another.
O Oxygen, nitrogen, and carbon dioxide can be classified as elements.
idio
Answers
Answer:
option A
Explanation:
hope it helps
need boy who is at leaast 12
Answers
Answer:
helloo!!!!!!! I am 12 :)
PLEASE HELP , 50 points!
Write the electron configuration of a -2 ion with 16 protons.
Answers
Answer:
1s^2 2s^2 2p^6 3s^2 3p^6
Explanation:
Number of electrons = Number of protons. Originally, sulfur has 16 protons, but the question asks states 2- ions. So S^(2-), or a total of 18 protons. Follow the rules, and make sure the exponents add up to 18. 2 + 2 + 6 + 2 + 6 = 18 electrons.
helpppppppppp meeeeee
Answers
Answer:
It's false. We can not alter the formula of the substance involved in a chemical reaction.
which chemical formal shows an ionic compound? A. CO2 B.N 2 O C.NaCI D.C6 H12 O6
Answers
Answer:
B
N2O
Explanation:
maybe
d can also be lol