What is the chemical formula for tin (II) fluoride?

Answers

Answer 1

Answer: SnF2 with the 2 being a subscript

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A nuclear fission reaction and a nuclear fusion reaction are similar because both reactions(1) form heavy nuclides from light nuclides(2) form light nuclides from heavy nuclides(3) release a large amount of energy(4) absorb a large amount of energy
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Olive oil has a density of 0.92 g/mL. How much would 1 liter of olive oil weigh in grams?

Answers

Dimension analysis is to be used to solve this problem. First convert 1L to milliliters. That is equivalent to 1000 ml. Then by dimension analysis, multiply the volume ( 1000ml) to the density of oil (0.92 g/ml) resulting to the answer: 920 grams.

16.H2O (water) and NaCl (salt) are _________ that are in salt water, which is a(n) __________. Water and salt contain the ____________ hydrogen, oxygen, sodium, and chlorine. Compounds; mixture; elements
Mixture; compounds; elements
Element; compounds; mixture
Compound; elements; compounds

12.The number of _____ determines which element it is.

electrons
protons
positrons
neutrons

Answers

#1...Mixture; compounds; elements
#2...Protons

What type of chemical reaction is happening here? 8Fe + S8 --> 8FeS

Answers

This is a synthesis reaction since you are taking two elements and creating one (opposite of decomposition). I think this might also classify as a redox reaction as well since it appears as if iron is being oxidized and sulfur is being reduced (iron is loosing electrons while sulfur is gaining electrons).

I hope this helps. Let me know if anything is unclear.

The three components essential for a fire are:a. Oxygen, fuel, ignition source.
b. Oxygen, fuel, primer.
c. Oxygen, fuel, oxygen enriched environment.
d. Oxygen, fuel, a liquid.

Answers

Hey there

The answer should be : Oxygen, fuel , heat

I hope that's help !

Which quantity can vary among atoms of the same element?A) mass number
B) atomic number
C) number of protons
D) number of electrons

Answers

there is this thing called isotopes
it means that atoms of the same element can have a different number of neutrons.
if there is a change in the no. of neutrons, there will definitely be a change in the mass number.

so the answer is A) mass number

Final answer:

The quantity that can vary among atoms of the same element is the mass number, which represents the sum of the number of protons and neutrons in an atom.

Explanation:

The quantity that can vary among atoms of the same element is the mass number. The mass number represents the sum of the number of protons and neutrons in an atom. While the atomic number (which represents the number of protons) remains constant for atoms of the same element, the number of neutrons can vary, resulting in different mass numbers for atoms of the same element.

Learn more about atom here:

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How many atoms are present in 4.0 Mol of sodium

Answers

1 mole = 6.02 x 10^23 atoms (of any element)

So we are going to take our known value of 4 moles, and multiply by 6.02 x 10^23 (Avogadro's number) and we will get the number of atoms that are in 4 moles.

(4.0 moles of Na) x (6.02 x 10^23) / (1 mole) = 2.4 x 10^24 atoms of Na
There are 2.4 x 10^24 atoms of Na in 4.0 moles.

Final answer:

To find the number of atoms in 4.0 Mol of sodium, you need to multiply the number of moles by Avogadro's number. This will give you approximately 2.4088 x 10^24 atoms.

Explanation:

To calculate the number of atoms in 4.0 Mol of sodium, you need to use Avogadro's number, which is 6.022 x 1023 atoms per mole. The calculation is as follows:

Start with the number of moles given, which is 4.0 mol.Multiply this by Avogadro's number (6.022 x 1023) to get the total number of atoms:

4.0 mol x 6.022 x 1023 atoms/mol = 2.4088 x 1024 atoms

So, there would be approximately 2.4088 x 1024 atoms in 4.0 mol of sodium.

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A solutions isA. a pure substance that has a fixed volume and shape. B. a pure substance that does not have a fixed volume or shape. C. an unevenly distributed mixture of two or more components. D. an evenly distributed mixture of two or more components.

14. How do scientists know that the universe is expanding? The galaxies are moving away from each other, and the temperatures are decreasing. The galaxies are moving away from each other, and the temperatures are increasing. The galaxies are moving toward each other, and the temperatures are increasing. The galaxies are moving toward each other, and the temperatures are decreasing.