In the Bronsted-Lowery definition, an an acid is a substance that.. a. donates protones b. accepts protones c. neutralizes hydronium ions d. forms a salt

Answers

Answer 1

Answer:

Answer:

Explanation:

acids have weak bonds between hydrogen atoms and (usually) oxygen, which results in its ability to donate the protone

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true or false: ionic bonding involves the shareing of electrons, oxide ions have a 2+ charge , electrons have a negative charge , a hydrogen molecule is held together by a strong covalent bond between two hydrogen atoms, a covalent bond is a shared pair of electrons.

Answers

Ionic bonding does not involve the sharing of electrons, that one is false. In ionic bonding, the metal's electrons are given to the non-metal, so that they're both like the nearest noble gas (full electron shells.) They are then drawn together because one has a negative charge (the non-metal) and one has a positive charge (the metal.)

Oxide ions have a 2+ charge: This is false, oxide ions have a 2- charge.

Electrons do have a negative charge, this is true.

Hydrogen molecule: pretty sure this is true. We know this because both atoms are non-metals.

The last one is true: a covalent bond is a shared pair of electrons between two atoms, however be aware that there can be more than one covalent bond between two molecules.

Answer:

False , shared electrons cause covalent bonds
False , they have 2- charge
True
True
Truw

The metric unit of force is theA. newton.
B. kilogram.
C. gram.
D. nanometer.

Answers

(The answer is A.newton) For example, the SI unit of force, the newton, is defined to be the force that accelerates a mass of one kilogram at the rate of one meter per second per second. This means the newton is equal to one kilogram meter per second squared, so the algebraic relationship is N = kg.

Which polyatomic ion has a charge of 3-?

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Most of the common inorganic polyatomic ions have negative charges. This means the ion has more electrons than the neutral atoms that are in the ion. A polyatomic ion like phosphate, PO43- has three extra electrons beyond the electrons on the P and O atoms. Got this off google sorry if it doesn't help you :(

During Mr. Nye's science class, students were expected to identify various substances using physical properties they could easily measure. Mr. Nye gave each of the five groups a green, metal cube. The students had to identify what metal the cube was made of. The length of each side was 3.0 cm and the mass was 270 grams.

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Given the length of each side of a cube and its mass, the density can be obtained which can then help identify the type of material it's made of. This is because density is a unique and intrinsic property of materials. For this problem, the density is determined to be 10g/cm^3. Looking at a table of densities, the metal is most likely actinium, which has an exact density of 10 g/cm^3.

Answer:Density

Explanation: The students should compute the density of the cube. Density is a physical property that can be used to identify most pure substances. The students know the length of a side so they can compute the volume. They also know the mass. Using the density formula, density =

mass

volume

, they can compute the density and identify the metal.

Calculate the density of a piece of bone with a mass of 3.8 grams and a volume of 2.0 cubic centimeters. 1.9 g/cm3 0.53 cm3/g 7.6 g /cm3

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Answer: The density if the bone is $1.9g/cm^3$ .

Explanation:

Mass of the bone = 3.8 grams

Volume of the bone = $2.0 cm^3$

Density is defined as mass present in per unit volume of the substance.

$density=(Mass)/(Volume)=(3.8 g)/(2.0 cm^3)=1.9g/cm^3$

The density if the bone is $1.9g/cm^3$ .

Answer:

1.9 g/cm

That's your answer!!

Which of the following was NOT a conclusion of Rutherford’s gold foil experiment? a. The atom is mainly empty space
b. The nucleus has a negative charge
c. The atom has a dense nucleus
d. Alpha particles can pass through a thin sheet of gold foil
e. All of the above are correct regarding the gold foil experiment

Answers

The answer is b.) The nucleus has a negative charge

It was not a conclusion because it is neutral. It is not positive nor negative.

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