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
igomit [66]
3 years ago
6

Grace runs 6miles in 2 hours what is her speed??

Chemistry
2 answers:
11111nata11111 [884]3 years ago
7 0

Answer:

3 miles/hr

Explanation:

This is a distance-rate-time problem, so we need to use the equation: d = rt, where d is the distance, r is the rate, and t is the time.

Here, the distance is 6 miles, so d = 6. The time is 2 hours, so t = 2. Plug these in to find r:

d = rt

6 = 2r

r = 6/2 = 3

Grace's speed is thus 3 miles/hr.

Hope this helps!

lakkis [162]3 years ago
4 0
Speed = miles / time
You might be interested in
An objects volume can be found by adding its mass by its?
Inessa05 [86]
Volume* density=MASS
4 0
4 years ago
what would you be most likely to measure by immsering and object in water and seeing how much the water level rises
Katena32 [7]
Mass, if you know what element you are working with.
4 0
3 years ago
A helium balloon contains 0.46g off helium. how many moles of helium does it contain?
EastWind [94]

(0.48 gram) x (1mole / 4.0 gram) = 0.48/4.0 = 0.12 mole

3 0
3 years ago
How many formula units of sodium chloride (NaCl) may theoretically be produced from 13.0 g FeCl3?
algol [13]

Answer:

1.445\times 10^{23} formula units of sodium chloride can be formed from 13.0 gram of ferric chloride.

Explanation:

Mass of ferric chloride = 13.0 g

Moles of ferric chloride = \frac{13.0 g}{162.5 g/mol}=0.08 mol

1 mole of ferric chloride has three moles of chloride ions.Then 0.08 moles of ferric chloride will have :

3\times 0.08 mol=0.24 mol of chloride

Na^++Cl^-\rightarrow NaCl

1 mole of sodium ion reacts with 1 mole of chloride ion to form 1 mole of NaCl. Then 0.24 moles of chloride ion will give:

\frac{1}{1}\times 0.24 mol=0.24 mol of NaCl

1 mole = N_A=6.022\times 10^{23} molecules/ atoms

Number of NaCl molecules in 0.24 moles :

=6.022\times 10^{23}\times 0.24=1.445\times 10^{23} molecules

1.445\times 10^{23} formula units of sodium chloride can be formed from 13.0 gram of ferric chloride.

4 0
3 years ago
Some animals hunt by _______ or sneaking up on their prey. It a nine letter word and there a m in the second place
guajiro [1.7K]

Answer:

Some animals hunt by <em>Camouflage</em> or sneaking up on their prey.

5 0
2 years ago
Other questions:
  • What would likely happen if a hot saturated solution were filtered by vacuum filtration using a büchner funnel? (hint: the mixtu
    14·1 answer
  • what if you scored a 0.80 on a test what. fraction of the test in simplest form did you answer correctly
    12·2 answers
  • The most common form of energy encountered in chemical reactions is _____. Select one:
    5·1 answer
  • Please do question 20 (help)
    9·1 answer
  • Methane gas is expanded from an initial volume of 20.5 L at 0.92 atm at 23oC to a final volume of 34.6 L. During the expansion t
    7·1 answer
  • How do you pass sience
    14·1 answer
  • Elements in group 18 are very unreactive. They are said to be "inert". We call these the..
    7·1 answer
  • Explain and describe how the photoelectric effect occurs on an atomic level in terms of protons, neutrons, and electrons
    14·1 answer
  • The length of a year is equivalent to the time it takes for one.. (pls help I honestly forgot )
    13·1 answer
  • PLEASE PLEASE PLEASE PLEASE HELP ME WITH THIS!!!!!!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!