All categories

3 years ago

What does a star's position in the main sequence tell you about the star

Chemistry

1 answer:

valkas [14]3 years ago

8 0

Answer:

A main sequence star is any star that is fusing hydrogen in its core and has a stable balance of outward pressure from core nuclear fusion and gravitational forces pushing inward.

Explanation:

can i get brianliest.

You might be interested in

35. Ethan-1,1-diol has two-OH groups attached to one of its carbons. Draw out this molecule

aleksklad [387]

Answer: structure of Ethane- 1,1- diol is in pic

Explanation:

8 0

3 years ago

mercury fulminate is so unstable it is used in blasting caps. Can you offer an explanation for this instability

Yakvenalex [24]

Answer:

Mercury fulminate is very sensitive to shock, friction, and sparks. ... put mercury fulminate into blasting caps for detonating dynamite.

Explanation:

6 0

3 years ago

An enzyme is discovered that catalyzes the chemical reaction:SAD -------->HAPPY

jekas [21]

Answer: Km = 10μM

Explanation: Michaelis-Menten constant (Km) measures the affinity a enzyme has to its substrate, so it can be known how well an enzyme is suited to the substrate being used. To determine Km another value associated to an eznyme is important: Turnover number (Kcat), which is the number of time an enzyme site converts substrate into product per unit time.

Enzyme veolcity is calculated as:

$V_{0} = \frac{E_{t}.K_{cat}.[substrate]}{K_{m}+[substrate]}$

where Et is concentration of enzyme catalitic sites and has to have the same unit as velocity of enzyme, so Et = 20nM = 0.02μM;

To calculate Km:

$V_{0}*K_{m} + V_{0}*[substrate] = E_{t}.K_{cat}.[substrate]$

$K_{m} = \frac{E_{t}.K_{cat}.[substrate]-V_{0}*[substrate]}{V_{0}}$

$K_{m} = \frac{0.02*600*40-9.6*40}{9.6}$

Km = 10μM

The Michaelis-Menten for the substrate SAD is 10μM.

3 0

3 years ago

Rapid, uncontrolled cell division of abnormal cells is characteristic of

adell [148]

Cancer
Cancer is a group of diseases characterized by uncontrolled growth and spread of abnormal cells. If the spread is not controlled, it can result in death.

5 0

4 years ago

Water is known as a polar molecule because Check all that apply. a. the oxygen and hydrogen atoms have the same electronegativit

Marrrta [24]

Answer:

Explanation:

Jvcguuohiijuuu

Hoojjouuijj

7 0

3 years ago