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
timurjin [86]
2 years ago
15

What gives a pant cell a rigid shape?

Chemistry
1 answer:
pogonyaev2 years ago
5 0

Answer:

Cell Wall

Explanation:

In plant cells, the cell wall is rigid the outer structure that protects the plant cell.

You might be interested in
Water boils at 212 degrees
max2010maxim [7]

Answer:

Fahrenheit

Explanation:

Bc i said so LOL JKJK ABAHGTRDSED

5 0
3 years ago
Pls help me in this:(​
antiseptic1488 [7]

Answer:

a) 26.98

b) 3

c) 3* 1.01 = 3.03

d) 3 *16 = 48

e) 26.98 + 3.03 + 48 = 78.01

f) 6.023 * 10²³

3 0
3 years ago
1. What element is a metalloid in group 3?
denis23 [38]

Answer:

1.The metalloids; boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), polonium (Po) and astatine (At) are the elements found along the step like line between metals and non-metals of the periodic table.

2.hydrogen

The elements generally classified as nonmetals include one element in group 1 (hydrogen);

3.element iron

The element iron is in group 8, and therefore has two or three apparent valence electrons.

8 0
3 years ago
The freezing point of ethanol, CH3CH2OH, is -117.300 °C at 1 atmosphere. Kf(ethanol) = 1.99 °C/m
MAXImum [283]

Answer : The molecular weight of this compound is 891.10 g/mol

Explanation :  Given,

Mass of compound = 12.70 g

Mass of ethanol = 216.5 g

Formula used :  

\Delta T_f=i\times K_f\times m\\\\T_f^o-T_f=i\times T_f\times\frac{\text{Mass of compound}\times 1000}{\text{Molar mass of compound}\times \text{Mass of ethanol}}

where,

\Delta T_f = change in freezing point

T_f^o = temperature of pure ethanol = -117.300^oC

T_f = temperature of solution = -117.431^oC

K_f = freezing point constant of ethanol = 1.99^oC/m

i = van't hoff factor = 1   (for non-electrolyte)

m = molality

Now put all the given values in this formula, we get

(-117.300)-(-117.431)=1\times 1.99^oC/m\times \frac{12.70g\times 1000}{\text{Molar mass of compound}\times 216.5g}

\text{Molar mass of compound}=891.10g/mol

Therefore, the molecular weight of this compound is 891.10 g/mol

7 0
3 years ago
Describe the structure of atoms including the masses, electrical, charges, and locations of protons, neutrons in the nucleus ,an
steposvetlana [31]

Answer:

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge).

Explanation:

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge).

3 0
3 years ago
Other questions:
  • What are the ionic bonds
    6·1 answer
  • Write a balanced equation for double replacement of KOH+ZnCl2
    5·1 answer
  • Consider the partial equation.
    13·1 answer
  • You are given 230 grams of a substance with a half-life of 0.75 years. How much will remain after 3 years?
    14·1 answer
  • If you had a sample containing 55 alpha particles, how many protons would be present in that sample? Show all necessary work.
    11·1 answer
  • water is set on the stove to boil as it absorbs the temperature increases from 27.5°C to 56.0°C. if there was 325g of water adde
    5·1 answer
  • Which of the following processes does our Sun and other stars in our galaxy use to create energy?
    5·1 answer
  • Where is carbon dioxide found in nature​
    10·2 answers
  • Consider the following processes:
    7·1 answer
  • a parent isotope has atomic number 90 and mass number 232. which are the atomic and mass numbers of the daughter isotope if it e
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!