Ask question

Ask question

All categories

3 years ago

13

Express 749 000 000 in scientific notation,

1 answer:

Dima020 [189]3 years ago

8 0

Answer:

7.49 × 108

Explanation:

Scientific notation is a way to express numbers in a form that makes numbers that are too small or too large more convenient to write. It is commonly used in mathematics, engineering, and science, as it can help simplify arithmetic operations. In scientific notation, numbers are written as a base, b, referred to as the significant, multiplied by 10 raised to an integer exponent, n, which is referred to as the order of magnitude:

You might be interested in

Which of these is found in the energy levels of an atom?

Paul [167]

Answer:

Electrons

Explanation:

Because the nucleas is In the middle and the Electrons surround it

3 0

2 years ago

What is the molecular formula of a compound with the empirical formula

ipn [44]

Answer: $C_2H_2O_2$

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

The empirical formula is $CHO$

The empirical weight of $CHO$ = 1(12)+1(1)+1(16)= 29 g.

The molecular weight = 60 g/mole

Now we have to calculate the molecular formula:

$n=\frac{\text{Molecular weight}}{\text{Equivalent weight}}=\frac{60}{29}=2$

The molecular formula will be= $2\times CHO=C_2H_2O_2$

Thus molecular formula will be $C_2H_2O_2$

5 0

2 years ago

What is true of all body except sex cells

Evgesh-ka [11]

They can all by seperrated or replicated.

4 0

3 years ago

WHO INVENTED THE LIGHT BOLD, WHO EVER GETS THE ANSWER RIGHT GETS A THANK YOU FROM ME

aivan3 [116]

This is a hard question because BEING BOLD cant be light ya know... but the light bulb.. thomas edison and joseph swan

5 0

2 years ago

Read 2 more answers

The diagram below represents a sodium atom bonding to a chlorine atom to form sodium chlorine.

Sergio [31]

Sodium Chloride is a compound.

8 0

3 years ago