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
Romashka [77]
3 years ago
12

When nutrients, water, and materials cross a cell membrane without requiring energy from the cell, the process is called

Chemistry
1 answer:
seraphim [82]3 years ago
7 0
Answer

passive transport.

Explanation

the movement of substances across a cell membrane without the use of energy by the cell.
You might be interested in
Can spectrum colors be mixed
larisa86 [58]
Additive color mixing involves multiple sources of light with different colors in each source. Subtractive color mixing involves a single source of light with different colors absorbing various wavelengths of the color spectrum. Secondary colors of one system serve as the primary colors for the other.
8 0
3 years ago
Draw a mechanism for this reaction. 5-hydroxypentanoic acid forms 2-oxanone in the presence of acid. draw all missing reactants
Licemer1 [7]

Answer: -

The first step involves protonation of the carbonyl oxygen.

After protonation, the Alcohol oxygen now attacks the carbon of the carbonyl.

Thus a six membered ring is formed with 5 carbon atoms and 1 oxygen atom. The 1st position carbon atom has 2 OH groups.

One of these gets again protonated.

This leaves as water. With the loss of the H+, there results a carbonyl at 1 position.

Thus 5-hydroxypentanoic acid forms a lactone or 2-oxanone in presence of acid.

3 0
3 years ago
PLZ HELP!!! WILL GIVE BRAINLIEST!! Balance the following equations to show the law of conservation of mass: (10 points - 1 point
Dafna11 [192]
A - 1 CH4+ 1 O2 = 1 CO2+2 H2
b - 2 Al+3 Cl2 = 2 AlCl3
c - 1 CH2O+ 1 H2 = 1 CH3OH
*The ones that have the coefficient of 1 you can leave blank but if you have to put a number just put 1
4 0
3 years ago
Explain how energy causes changes to earths surface
dlinn [17]

Answer:

Explanation:

The absorbed sunlight drives photosynthesis, fuels evaporation, melts snow and ice, and warms the Earth system. Solar power drives Earth's climate. Energy from the Sun heats the surface, warms the atmosphere, and powers the ocean currents.

7 0
2 years ago
If excess ammonium sulfate reacts with 20.0g of calcium hydroxide how many grams of ammonia are produced
bagirrra123 [75]
The reaction between ammonium sulfate and calcium hydroxide is given below. 
            (NH₄)₂SO₄ + Ca(OH)₂ --> 2NH₃ + CaSO₄ + 2H₂O
From the balance equation, we can conclude that every 74 g of calcium sulfate reacted with enough amount of ammonium sulfate will yield 34 grams of ammonia. From the given amount,
               (20 g calcium sulfate) x (34 grams ammonia / 74 g calcium sulfate)
                               = <em>9.19 g ammonia</em>
3 0
4 years ago
Other questions:
  • For the following reaction in aqueous solution, identify all those species that will be spectator ions. Select all that apply.
    15·1 answer
  • If you are given a chemical equation and specific amounts for each reactant in grams, how would you determine how much product c
    12·1 answer
  • A sample of solid NH 4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (at
    10·1 answer
  • Which of the following chemical reactions is reversible?
    9·2 answers
  • In an exothermic reaction, the average kinetic energy of the particles of matter ib the products _____
    7·1 answer
  • How many centimeters are in 5 miles? Hint: 1 miles = 5280 feet
    13·1 answer
  • Consider the following reaction: 4Fe + 302 → 2Fe2O3. What mass of iron(III) oxide would
    10·1 answer
  • Long scratch marks that are left behind as evidence of glaciers are called
    11·1 answer
  • 1. The calendar below shows a sample month of the year. Suppose that you see a full moon on the first day of this month.
    15·1 answer
  • Layer F can help scientists to correlate the relative age of another layer. What makes layer F useful for relative dating?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!