Answers
Answer:
800 ml
marbel
flow
Explanation:
19- if we have a ring with a mass of 107g and a volume of 5ml. We will use the following formula d=m/v so this ends up as 21.4=107g/5ml this gives us the material Platinum
Related Questions
Which property of light does this diagram show?
Answers
What characteristics are similar between two biomes
Answers
Answer:
Niches
Explanation:
Select the correct answer.
Which two particles can form an ionic bond with each other?
A.
a negative oxygen ion and a negative chlorine ion
B.
a positive sodium ion and a positive magnesium ion
C.
a positive calcium ion and a negative oxygen ion
D.
a neutral fluorine atom and a negative sulfur ion
Answers
Answer:
C. a positive calcium ion and a negative oxygen ion
Explanation:
Ionic bonds are generally positive and negative because one is gaining electrons while the other is losing.
The term chemical bond generally refers to the attractive force that holds the constituent atoms or ions of a molecular species together. Here an ionic bond is formed between a positive calcium ion and a negative oxygen ion. The correct option is C.
What is an ionic compound?An ionic compound is formed by the transfer of one or more electrons between the atoms. An ionic bond or electrovalent bond refers to the strong electrostatic forces of attraction that hold together oppositely charged ions.
The number of electrons lost or gained by an atom of an element so as to acquire a stable octet configuration in its outermost shell is called the electrovalency of the element.
Here 'Ca' has 20 valence electrons and 'O' has 6 valence electrons. So in order to attain the stable octet configuration of 'Ar', 'Ca' loses two electrons whereas 'O' accepts two electrons to attain stable octet configuration of 'Ne'.
Thus the correct option is C.
To know more about ionic compounds, visit;
https://brainly.com/question/13058663
#SPJ7
I didn't really understand the explanation, can it be broken down
Answers
Answer:
40.06
Explanation:
(23 * 39) + (48 * 40) + (29 * 41)
100
= 40.06
formula:
(% of isotope A * mass of A) + (% of isotope B * mass of B) ......
100
Answer:
yes it can be broken down
What can be inferred from the graph?
Answers
do the yoga boi TUT yooooooooooooooooooooo9ooooooooot
I really need help on this question! Thank you so much!
Answers
Answer:
A. Empirical formula => C₂H₄O
B. Molecular formula => C₄H₈O₂
Explanation:
From the question given above, the following data were obtained:
Mass of C = 0.273 g
Mass of H = 0.046 g
Mass of O = 0.182 g
Molar mass of compound = 88 g/mol
A. Determination of the empirical formula of the compound.
C = 0.273 g
H = 0.046 g
O = 0.182 g
Divide by their molar mass
C = 0.273 /12 = 0.023
H = 0.046 /1 = 0.046
O = 0.182 /16 = 0.011
Divide by the smallest
C = 0.023 / 0.011 = 2
H = 0.046 / 0.011 = 4
O = 0.011 / 0.011 = 1
Thus, the empirical formula of the compound is C₂H₄O
B. Determination of the molecular formula of the compound.
Empirical formula = C₂H₄O
Molar mass of compound = 88 g/mol
Molecular formula =?
Molecular formula = [C₂H₄O]ₙ
[C₂H₄O]ₙ = 88
[(12×2) + (4×1) + 16]n = 88
[24 + 4 + 16]n = 88
44n = 88
Divide both side by 44
n = 88 / 44
n = 2
Molecular formula = [C₂H₄O]ₙ
Molecular formula = [C₂H₄O]₂
Molecular formula = C₄H₈O₂
Can someone please help me with this question.
Answers
Answer:
Birds evolved from a group of meat-eating dinosaurs called theropods. That's the same group that Tyrannosaurus rex belonged to, although birds evolved from small theropods, not huge ones like T. rex.
Answer:
we haven't done anything to study the roots of the bird yet
PLS ANSWER I WILL GIVE BRAINLY TO First!!!
Answers
Answer:
if I tell the ans u won't give me brainly
What volume of chlorine gas (Cl2), measured at STP, can be produced by the decomposition of 73.0g of hydrogen chloride gas (HCl), according to the balanced equation? (the other product is hydrogen gas (H2))
Answers
Answer:
Explanation:
2HCl = H₂ + Cl₂
2 mole 1 mole 1 mole
73 gram HCl = 73 / 36.5 = 2 mole of HCl
2 moles of HCl will produce 1 mole of chlorine gas .
At STP , one mole of chlorine gas has volume equal to 22.4 litre .
Name the following:
1. SF6
2. N2O4
3. Cl2O7
4. S2Cl2
Answers
Answer:
Solfuric Floride
Nitrodgen Oxide
Clorine oxide
Sulfur Cloride
Explanation:
IM A CHEMISTRY WIZ
Without the atmosphere, life on Earth would not be possible. Which of the following is NOT an explanation for how Earth’s atmosphere protects life on the planet?
A. It allows visible light to pass through completely.
B. It contains gases that filter out ultraviolet radiation.
C. It keeps Earth warm by trapping in heat.
D. It protects life from ultraviolet rays of light
Answers
Answer:
B
Explanation:
IM A CHEMISTRY WIZZZZ
:)
I hope u get full marks on your paper/test/quiz or whatever!
There is a 20 percent chance so stay positive!
Answer:
D
Explanation: ultraviolet rays are harmful to humans
Powdered sodium carbonate reacts with a solution of sulphuric acid (H2SO4) to make a solution of sodium sulphate and water
carbon dixide is given
off.
Answers
Answer:
yes
Explanation:
Na2CO3 + H2SO4 --> Na2SO4 + H2O + CO2
Will give Brainliest If Correct!
Which of the following best describes the distribution of the world’s food supply? Select all that apply.
Still unevenly distributed leaving millions starving to death.
Quickly changing to be evenly distribute based on humanitarian efforts.
Slowly changing to be slightly more evenly distributed based on humanitarian efforts.
Evenly distributed throughout the population of the world now.
Answers
Answer:
Slowly changing to be slightly more evenly distributed based on humanitarian efforts. Still unevenly distributed leaving millions starving to death.
Explanation:
This equation represents cellular respiration.
C6H12O6 +602
6 CO2 + 6H2O + energy
Which table lists all the atoms in reactants and products of cellular respiration?
Reactants 6 C 12 H 18 O
ΟΑ.
Products 6 C 12 H 18 O
Reactants 6 C 6H 2
Ов.
Products 6 C 12 H 120
Reactants 6 C 12 H 120
C.
Products 6 C 12 H 30
Reactants 6 C 12 H 18 0
D.
Products 1C6H 18 O
Please hurry
Answers
if you work it put you will get the 3rd one I think
What is this molecule an
example of?
A. an atom
B. a mixture
C. an element
D. a compound
PLEASE HELP ASAP
Answers
Answer:
D. Compounds
Explanation:
Because it's says that have 3 components
which of the following is unbalanced
A. SnO2 + H2 → Sn + 2 H2O
B. 2Na + 2H2O → 2NaOH + H2
C. N2O5 + H2O → HNO3
D. 2Fe + 3Cl2 → 2FeCl3
Answers
Answer:
The unbalanced chemical equation is;
C. N₂O₅ + H₂O → HNO₃
Explanation:
In balancing a chemical reaction equation, only the coefficients of the terms of the reactants and/or the products are adjusted (and not the subscripts to the atoms in the compounds) to ensure that the total number of each element is the same on either side of the arrow for the chemical reaction
A coefficient term is the number multiplier of the compounds and elements in a chemical reaction
Therefore, the balanced chemical equation is obtained by changing the coefficient of the product from the implied '1' to a '2' as follows;
N₂O₅ + H₂O → 2HNO₃
What type of nonvisible light has a longer wavelength than the color red?
Answers
Answer:
i believe its blue
Explanation:
a. How does the atomic radius change going down and across the periodic table?
B. How does first ionization energy change going down and across the periodic table?
Answers
Answer: A when going down the periodic table your atomic radius will get bigger same if you got to the side. B Moving left to right within a period or upward within a group, the first ionization energy generally increases
Explanation:
elect the correct answer.
Which atom or ion is the largest?
A.
K
B.
K+
C.
Ca
D.
Ca2+
E.
Li
Answers
Answer:
Ca2+ I'm not sure hahahahhahah
Answer:
Ca
hope it is helpful..
he chemical formula for lithium hydride is LiH A chemist determined by measurements that 0.0800 moles of lithium hydride participate in a chemical reaction. Calculate the mass of lithium hydride that participates. Be sure your answer has the correct number of significant digits.
CAN SOMEONE HELP PLEASE
Answers
The mass of lithium hydride that participates in the chemical reaction is 6.35 grams.
How to calculate mass?The mass of a substance can be calculated by multiplying the number of moles by its molar mass as follows:
mass (g) = no of moles (mol) × molar mass (g/mol)
According to this question, the chemical formula for lithium hydride is LiH. A chemist determined by measurements that 0.0800 moles of lithium hydride participate in a chemical reaction.
Molar mass of LiH = 6.941 + 1 = 7.94g/mol
mass = 0.8mol × 7.94g/mol = 6.35grams
Therefore, 6.35g is the mass of the lithium hydride.
Learn more about mass at: https://brainly.com/question/11954533
#SPJ1
what is the conclusion that males are stronger than females
Answers
Select the correct answer.
How many electrons does a covalent bond consist of?
A.
one
B.
two
C.
four
D.
eight
Answers
Explanation:
A covalent bond can be thought of as a 'shared pair' of electrons, so there are 2 electrons in each bond. That means that a double bond will have 4 electrons in the space between the bonded nuclei, and a triple bond will have 6.
MARK ME AS BRAINLISTMatch the general form of each reaction to it’s appropriate chenille reaction.
In photo
Answers
2. E
3. C
4. D
5. B
respond if you got a min to help me with my problem
Answers
Answer:
I mean i dont know......
Explanation:
What is the molar mass for MgO?
Answers
Answer:
40.3044 g/mol
Explanation:
please help >>>>>>>>>>>
Answers
Answer:
Explanation:
mass of 1mole of brick = mass of 1 brick x avagadro number
= 4 kg x 6.022 x 10^23 bricks = 2.4 x 10^24 kg
No. of moles of bricks have a mass equal to the mass of the earth
= mass of earth / mass of 1 mole of brick
= [ 6 x 10^27 ] / [ 2.4 x 10^24 ]
= 2.5 x 10^3
= 2500 moles
1. What is solar energy? Give an example
Answers
Answer:
Solar energy is energy from the sun. for example solar panels are used to use energy for the sun to give you eletricity.
Explanation:
Explanation:
solar energy is energy from the sun, it can be used for electricity.
Which of the following elements does not form a diatomic molecule?
A. Chlorine.
B. Nitrogen.
C. Neon.
D. Hydrogen.
Answers
Answer:
C
Explanation:
Neon is a noble gas, which is monoatomic.
how do I out pizza the hut?
Answers
Answer:
you get one of their pizzas and then put more toppings on cheese on the pizza
Explanation:
How are you able to light a bunsen burner
Answers
Answer:
Lighting Bunsen Burner:
Explanation:
Close needle valve and collar. Open gas valve fully. Open needle valve 1/2 turn. Use the spark/lighter to light the flame.