All categories

3 years ago

Match the following terms to their respective definitions:

Chemistry

1 answer:

ruslelena [56]3 years ago

4 0

Enzyme is C(the last answer choice),Substrate is A(the first one),and Active Site is B(the second answer choice)

You might be interested in

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. What is the weight/

lara31 [8.8K]

Answer:

A solution is made by dissolving 4.87 g of potassium nitrate in water to a final volume of 86.4 mL solution. The weight/weight % or percent by mass of the solute is :

2.67%

Explanation:

Note : Look at the density of potassium nitrate in water if given in the question.

You are calculating weight /Volume not weight/weight % or percent by mass of the solute

Here the weight/weight % or percent by mass of the solute is asked : So first convert the VOLUME OF SOLUTION into MASS

Density of potassium nitrate in water KNO3 = 2.11 g/mL

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

Density = 2.11 g/mL

Volume of solution = 86.4 mL

$2.11=\frac{mass}{86.4}$

$mass = 2.11\times 86.4$

$mass=182.3grams$

Mass of Solute = 4.87 g

Mass of Solution = 183.2 g

w/w% of the solute =

$= \frac{mass\ of\ solute}{mass\ of\ solution}\times 100$

$=\frac{4.87}{183.2}\times 100$

w/w%=2.67%

8 0

3 years ago

LaShawna and her family went to Yellowstone National Park. They saw a spring called Green Dragon Spring. Steam was rising off th

sergiy2304 [10]

Yes , I agree with the statement water contains minerals

Explanation:

When LaShawna saw the steam, she said that the water must contain a lot of minerals and the statement is true.
Most of the water comes from the underground supply and they undergo some cleaning process and stuff.
Usually, mineral water comes from natural underground water supply and the springs.
Chemical compounds like Calcium, potassium, sodium, iron are present in water.
Magnesium plays an essential function in maintaining blood supply and high mineral content water helps us to prevent or lower the heart-related disease.
Calcium is the building block for maintaining the bone's health.

4 0

3 years ago

Read 2 more answers

This answer please :))

r-ruslan [8.4K]

Answer: ya this one

Explanation: this is the one

4 0

3 years ago

Which of the following black body curves is representative of stars like our sun?

Bumek [7]

The answer is B
I also did this quiz.