subject
Biology, 22.05.2020 12:58 wanderlay29

PLEASE HELP

Question 1 (1 point)
Saved
Avogadro's number 6.02 X 10^23 is used in chemistry to measure something like electrons, atoms, elements etc.

Question 1 options:
True
False
Question 2 (1 point)
Saved
If you have 2 moles of marbles how many marbles do you have?

Question 2 options:

3.01 X 10^24

12.04 x 10^23

6.022 x 10^23

2.0 x 10^23

Question 3 (1 point)
Saved
Which value approximately represents the number of atoms in one mole of gold?

Question 3 options:

2.30×10^6

3.26×10^6

6.02×10^23

12.04×10^24

Question 4 (1 point)
Saved
How many hydrogen molecules are in 1.2 moles of hydrogen?

Question 4 options:

7.2 x 10^23

0.19 x 10^23

1.9 x 10^24

4.8 x 10^23

Question 5 (1 point)
How many water molecules are in 2.1 moles of water?

Question 5 options:

2.86 x 10^23

3.4 x 10^23

0.34 x 10^23

1.264 x 10^23

ansver
Answers: 3

Another question on Biology

question
Biology, 21.06.2019 19:50
Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?
Answers: 3
question
Biology, 22.06.2019 01:50
Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?
Answers: 1
question
Biology, 22.06.2019 10:30
Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.
Answers: 2
question
Biology, 22.06.2019 15:30
What type of reaction is photosynthesis
Answers: 2
You know the right answer?
PLEASE HELP

Question 1 (1 point)
Saved
Avogadro's number 6.02 X 10^23 is us...
Questions
question
History, 02.12.2020 18:10
question
History, 02.12.2020 18:10
Questions on the website: 13722363