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
Likurg_2 [28]
3 years ago
6

Mars has a mass of 642,000,000,000,000,000,000,000 kg. How would

Chemistry
1 answer:
Daniel [21]3 years ago
6 0

= 6.42 × 10²²

(scientific notation)

= 6.42e22

(scientific e notation)

= 64.2 × 10²¹

(engineering notation)

(sextillion; prefix zetta- (Z))

= 64200000000000000000000

(real number)

You might be interested in
An atom has 32 protons, 40 neutrons, and 32 electrons. What is the charge of the atom’s nucleus?
eimsori [14]
The charge is neutral.

To find the charge, subtract the number of electrons from the number of protons. Because they are the same, there is no charge.
8 0
3 years ago
Wine goes bad soon after opening because the ethanol (CH3CH2OH) dissolved in it reacts with oxygen (O2) gas to form water and aq
andrezito [222]

The number of mole of oxygen needed is of 0.080 mole.

To solve this question, we'll begin by writing the balanced equation for the reaction. This is illustrated below:

<h3>CH₃COOH + 2O₂ —> CO₂ + 2H₂O</h3>

From the balanced equation above,

2 moles of O₂ reacted to produce 2 moles of H₂O.

Finally, we shall determine the number of mole of O₂ needed to produce 0.080 mole of H₂O. This can be obtained as follow:

From the balanced equation above,

2 moles of O₂ reacted to produce 2 moles of H₂O.

Therefore,

0.080 mole of O₂ will also react to produce 0.080 mole of H₂O.

Thus, 0.080 mole of oxygen, O₂, is needed for the reaction.

Learn more: brainly.com/question/1563415

7 0
3 years ago
I need help on this eighth grade science question
KiRa [710]

I BELIEVE D IS THE CORRECT ANSWER BECAUSE IT IS INA . CLOSED SYSTEM.

7 0
3 years ago
What occurs when a gas is changed into a liquid
ankoles [38]

for liquid to gas, Evaporation or vaporization.

for gas to liquid, condensation occurs. The opposite of evaporation. Condensation is when the gas gives up it's latent heat and simply condenses.

7 0
4 years ago
Can someone find the independent variable and the dependent variable ? :)))
sasho [114]

Answer: Dependant variable = The distance it takes for each car to stop.  Independent variable = Both cars go at 60 mph.

Explanation:

This is right because the dependant variable changes and the independent variable is the outcome of the dependant variable.

7 0
4 years ago
Other questions:
  • A chemist measures the energy change Delta H during the following
    10·1 answer
  • Wich reason is the best for choosing the ruler to measure the dimensionof tbe wooden block
    7·1 answer
  • What is the defining characteristic of an exothermic reaction.
    5·1 answer
  • Which of the following will ammonium ion form an insoluble salt? 4/16 a. chloride b. sulfate c. sulfate and carbonate d. carbona
    11·1 answer
  • The molar mass of the compound was found to be 30.069 g/mol. what is the molecular formula? express your answer as a chemical fo
    10·1 answer
  • . In what direction is heat flowing when inserting your cold hand into a warm glove on a winter day? From the warm glove to your
    9·2 answers
  • What happened to the salt molecules when they were added to cold water
    11·1 answer
  • Explain what happens to particles in a chemical reaction between metal and oxygen
    12·2 answers
  • This table lists plant adaptations and their functions.
    11·1 answer
  • Need help with question 10
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!