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3 years ago

If 1 bus = 12 cars, 3 cars = 1 truck, and 1000 basketballs = 1 truck, how many basketballs can be carried by 8 buses?

1 answer:

6 0

1 bus = 12 cars
1 truck = 3 cars
4 trucks= 12 cars
1 bus = 4 trucks
1 bus = 4000 basketballs
8 buses= 32,000 basketballs

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Ammonia, NH3 is a common base with Kb of 1.8 X 10-5. For a solution of 0.150 M NH3:

Vesnalui [34]

The concentrations : 0.15 M

pH=11.21

<h3>Further explanation</h3>

The ionization of ammonia in water :

NH₃+H₂O⇒NH₄OH

NH₃+H₂O⇒NH₄⁺ + OH⁻

The concentrations of all species present in the solution = 0.15 M

Kb=1.8 x 10⁻⁵

M=0.15

$\tt [OH^-]=\sqrt{Kb.M}\\\\(OH^-]=\sqrt{1.8\times 10^{-5}\times 0.15}\\\\(OH^-]=\sqrt{2.7\times 10^{-6}}=1.64\times 10^{-3}$

$\tt pOH=-log[OH^-]\\\\pOH=3-log~1.64=2.79\\\\pH=14-2.79=11.21$

8 0

3 years ago

Choose the abiotic factors that characterize the tundra biome.

Arada [10]

The only answer that makes sense is A.

Warm wet forests is a rainforest, arctic foxes are biotic, not abiotic, and little rainfall extreme temperatures is a desert.

3 0

4 years ago

Read 2 more answers

Which of the following is NOT a testable hypothesis?

Leto [7]

Gravity is caused by a magical force

6 0

4 years ago

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A. How many Joules of energy are required to raise 3.50kg of water from 38.5 to 75.0C ? (specific heat of water is 4.184J/g C)(1

DochEvi [55]

A substance's specific heat tells you how much heat is required to increase the temperature of 1 g of that substance by 1°C.

The equation that establishes a relationshop between heat and change in temperature is

q = m • c • ∆T, where

q - heat absorbed

c - the specific heat of the substance, in your case of water

ΔT - the change in temperature, defined as the difference between the final temperature and the initial temperature

so:

q = 1.00 g • 4.18 J/g×°C • (75.0 - 38.5)°C

q = 152,57 J

just apply this formula for all exercises

7 0

2 years ago

Read 2 more answers

Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm3. What is the density of the rock? * 0 7 ml O 28 g/cm3 07 g/cm

jeyben [28]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass of rock = 14 g

volume = 2 cm³

The density of the rock is

$density = \frac{14}{2} \\$

We have the final answer as

Hope this helps you

3 0

4 years ago