All categories

3 years ago

Please help! Will mark friend!

Chemistry

2 answers:

bezimeni [28]3 years ago

5 0

The answer is D the Respiration rate increases as the Exercise Intensity increases as well

ziro4ka [17]3 years ago

5 0

The answer is D because both increase

You might be interested in

When a substance is heated ,the kinetic energy of its molecules

Simora [160]

Answer:

When a substance is heated ,the kinetic energy of its molecules also increase.

Explanation:

K.E is directly proportional to T

5 0

2 years ago

What is the elevation of hachure line A? 125 feet 75 feet 100 feet 50 feet

mote1985 [20]

elevation between index contours would be 125 feet

7 0

2 years ago

Read 2 more answers

The illustration depicts the formation of an ionic chemical bond between lithium and fluorine atoms. Why is the resulting compou

nirvana33 [79]

The transferred electron from lithium to fluorine provides each atom with a full outer energy level.

7 0

2 years ago

Read 2 more answers

An object floats im sea water more readily because of sea water’s

Taya2010 [7]

Because of the sea waters density. If an object is less dense than the water it would not float

7 0

2 years ago

Read 2 more answers

A 44% wt/wt solution of H2SO4 has a density of 1.343g/ml. What mass of H2SO4 is 60ml of this solution?

horsena [70]

Answer: The mass of sulfuric acid present in 60 mL of solution is 34.1 grams

Explanation:

We are given:

44 % (m/m) solution of sulfuric acid. This means that 44 grams of sulfuric acid is present in 100 grams of solution.

To calculate volume of a substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of solution = 1.343 g/mL

Mass of solution = 100 g

Putting values in above equation, we get:

$1.343g/mL=\frac{100g}{\text{Volume of solution}}\\\\\text{Volume of solution}=\frac{100g}{1.343g/mL}=77.46mL$

To calculate the mass of sulfuric acid present in 60 mL of solution, we use unitary method:

In 77.46 mL of solution, mass of sulfuric acid present is 44 g

So, in 60 mL of solution, mass of sulfuric acid present will be = $\frac{44g}{77.46mL}\times 60mL=34.1g$

Hence, the mass of sulfuric acid present in 60 mL of solution is 34.1 grams

3 0

2 years ago