1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gnom [1K]
3 years ago
8

Perform the following operation

Chemistry
1 answer:
Ivenika [448]3 years ago
7 0

Answer:

7.00\times 10^8-5.00\times 10^6 = 6.95\times 10^8

Explanation:

The given expression is :

7.00\times 10^8-5.00\times 10^6

We need to solve the above expression using operations and then express it in scientific notation.

First we will make the power of 10 same in both terms

7.00\times 10^8-(5.00\times 10^6\times \dfrac{100}{100})\\\\=7.00\times 10^8-(0.05\times 10^8)\\\\=(7-0.05)\times 10^8\\\\=6.95\times 10^8

Hence, the answer is 6.95\times 10^8.

You might be interested in
How much heat is required to convert 12. 0 g of ice at -10. 0 ºc to steam at 100. 0 ºc?
nordsb [41]

Main Answer:

Given data:

Mass of ice m = 12 grams = 12/1000 = 0.012 kg

Specific heat  s = 4.18 KJ/ gm-1 C-1

Change in temperature t = t2 - t1

t = 100 - (-10)

t = 100 + 10 = 110C

Heat required Q = m x s x t

Q = 0.012 x 4.18 x 110

Q = 5.5176 KJ

Explanation:

What is heat?

Heat is defined as one of the forms of energy. It is a kinetic energy which can be transferred from one object to another object or medium. It cannot be destroyed or created. The units of heat is Joules in SI system and calories in CGS system.  

To know more about heat, please visit:

brainly.com/question/13439286

#SPJ4

8 0
2 years ago
A high pich always correspond to
Masteriza [31]
A high frequency sound wave 
4 0
4 years ago
6. For which movement of earth materials is gravity not the main force?
sineoko [7]
B moisture evaporating from an ocean
6 0
3 years ago
Read 2 more answers
Why did the water turn blue after the food coloring was added to the water
o-na [289]
Because when mixed the food coloring spreads to the less dense parts of the water cup. 
8 0
3 years ago
Enter your answer in the provided box. calculate the ph of a 0. 39 m ch3cooli solution. (ka for acetic acid = 1. 8 × 10−5. )
loris [4]

The pH of the solution is the negative logarithm of a proton or the hydrogen ion concentration. The pH of 0.39 M acetic acid solution (CH₃COONa) is 2.58.

<h3>What is pH?</h3>

The pH has been said to be the hydrogen ion concentration that can also be given by the pOH.

Given,

The acid dissociation constant Ka = 1.8 × 10⁻⁵

Concentration of acetic acid (C) = 0.39 M

The hydrogen ion concentration from Ka and molar concentration are calculated as:

H⁺ = √ Ka × C

= √1.8 × 10⁻⁵ × 0.39

= √0.00000702

= 0.0026

Now, pH from hydrogen ion is calculated as,

pH = - log [H⁺]

= - log [0.0026]

= 2.58

Therefore, the pH of acetic acid is 2.58.

Learn more about pH here:

brainly.com/question/27549063

#SPJ4

6 0
2 years ago
Other questions:
  • How many moles of n are in 0.187 g of n2o?
    7·2 answers
  • What is scientific theory
    10·2 answers
  • What happens to electron pairs when molecule is formed
    15·1 answer
  • the sodium hydroxide solution in this investigation contains 80 grams per dm^3 the students use 40cm^3 of sodium hydroxide solut
    5·1 answer
  • Why do scientists sometimes discard theories?
    9·2 answers
  • Determine the hydroxide ion concentration in
    11·1 answer
  • If any girl want to be my girlfriénd?​
    11·2 answers
  • What mass of propane could burn in 48.0 g of oxygen
    7·1 answer
  • Gold is one of the first metals extracted from the earth. Explain why
    13·1 answer
  • The milliliter is a metric unit for
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!