CHEMISTRY HIGH SCHOOL

Add 3 x 10^9 +5.3 x 10^10

Answers

Answer 1

Answer: Add 3 x 10^9 +5.3 x 10^10

3 x 10^9
+5.3 x 10^10
------------------
5.6 x 10^10

Answer 2

Answer:

Answer:

3*10⁹ + 5.3*10¹⁰ = 5.6*10¹⁰

Explanation:

The values are given as exponents:

3*10⁹ and 5.3*10¹⁰

As per the rules:

-Before adding two numbers, all exponents must be the same

-The addition takes place between the numerical portion of the numbers

- The final value is rounded off to the least places in the decimal portion of the given numbers

Therefore, the two numbers to be added are:

$3*10^(9)+53*10^(9)=56*10^(9)$

Rounded off the final value to 1 decimal place gives:

5.6*10¹⁰

Related Questions

The compound NacI is an example of a/an
A salt is obtained as a reaction between .A. a base and water. B. a nonmetal and a metal. C. an acid and oxygen. D. a base and an acid.
Which method is appropriate for separating a mixture of iron and aluminum? A. using a magnet B. distillation C. evaporation D. observing different densitie
A change in the number of protons or neutrons occurs in which type of reaction?A: electrochemical reaction B: thermochemical reaction C: nuclear reaction D: chemical reaction
A color change happens during an experiment mixing two liquids. Is this a physical change or chemical change?

What is the definition of half-life

Answers

Answer:

the time taken for the radioactivity of a specified isotope to fall to half its original value.

Explanation:

How many covalent bonds can each carbon atom form?

Answers

The covalent bonds present in based on the valence electrons and thus form 4 bonds.

What are valence electrons?

The valence electrons are the number of electrons present on the last orbital of the atom.

The atomic number of carbon is 6, thereby it is given with the electronic configuration 2, 4.

There is the presence of the 4 valence electrons in the carbon atom, and thereby the number of covalent bonds formed by carbon atom is 4.

Learn more about valence electrons, here:

brainly.com/question/12717954

#SPJ2

Carbon can form a maximum of 4 covalent bonds because it has 4 valence electrons i.e. 4 outer electrons.

What chemical change is magnetizing steel

Answers

Magnetizing steel is a physical change, not a chemical change.

Magnetizing steel is a physical change, not a chemical change because it does not change the chemical composition of the steel.

A chemical change is a change in which new substances are formed. This is because the atoms in the original substances are rearranged to form new atoms or molecules. There is no chemical change when magnetizing steel. For example, when iron rusts, it reacts with oxygen to form a new substance called iron oxide.

A physical change is a change in which the form of a substance is changed, but the substanceitself is not changed. For example, when you melt ice, you are changing the form of water from a solid to a liquid, but the water itself is not changed.

When you magnetize steel, you are simply aligning the magnetic domains in the steel. Magnetic domains are regions of a material that have a net magnetic field. When the magnetic domains are aligned, the steel becomes magnetized.

Magnetizing steel does not change the chemical composition of the steel. The steel is still made up of the same atoms, and the atoms are still arranged in the same way. The only difference is that the magnetic domains are aligned, which gives the steel its magnetic properties.

To know more about Magnetizing steel here

brainly.com/question/19109664

#SPJ6

Bromine, a liquid at room temperature, has a boiling point of 58° C and a melting point of -7.2° C bromine can be classified as a Compound, impure substance, mixture, or pure substance

Answers

The answer to the chemistry question above would be pure substance. Bromine is classified as a pure substance because only the element is present and there are no other substances added or mixed with it. It is also not a compound because it does not come with another element.

Answer:

pure substance

Explanation:

i just did on edgen

The relationship between the mass m of a material, its volume V, and its density D is

Answers

D V = m thst should nbe the answer

Final answer:

The question is asking about the mathematical relationship between mass, volume and density in Physics, which is represented by the formula D = m/V; this formula is essential in various physics computations.

Explanation:

The relationship between the mass (m) of a material, its volume (V), and its density (D) is represented by the formula D = m/V. This is a fundamental concept in Physics, specifically in areas involving fluid mechanics and material science. If you know the mass and volume of a material, you calculate its density using this formula, and decipher a lot about the material's properties from the result of this calculation.