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
aleksklad [387]
3 years ago
5

This age group walks and runs confidently, but may run into things, walks up and down stairs without assistance, scribbles in de

liberate directions, removes slip on clothing.
Chemistry
1 answer:
Slav-nsk [51]3 years ago
6 0
A baby, idk if that’s right, my bad if it isn’t
You might be interested in
Scientists classify organisms into different groups based on:
Julli [10]
D. Common characteristics
5 0
3 years ago
Why is there day and night
Burka [1]
Because the moon orbits the earth and when the moon gets in front of the sun it blocks the sunlight and then it becomes night
6 0
3 years ago
Which of the following pairs consists of a weak acid and a strong base? (1 point)
notka56 [123]

Answer:

acetic acid, sodium hydroxide

Explanation:

A strong acid is an acid that ionizes in water to give all its hydrogen ion. Weak acid only ionize to a certain degree. Acetic acid (CH3COOH) only ionize to give one hydrogen ion despite having other hydrogen atom. This account for its weak nature as an acid as shown below:

CH3COOH <=> H^+ + CH3COO^-

A strong base is a base that ionizes in water to give all it hydroxide ion. Sodium hydroxide(NaOH) ionizes to give all its hydroxide ions. This make it a strong base as shown below;

NaOH <=> Na^+ + OH^-

8 0
2 years ago
Is diphenylamine a solid, liquid, or a gas at room temperature
goblinko [34]

Answer:

Solid

Explanation:

Diphenylamine has a melting point of 127.4 F or 53 C so at room temperature ~70 F or 21 C its a solid.

3 0
3 years ago
A 110 g copper bowl contains 240 g of water, both at 21.0°C. A very hot 410 g copper cylinder is dropped into the water, causing
vlada-n [284]

Answer:

There is 98.76 kJ energy transfered to the water as heat.

Explanation:

<u>Step 1:</u> Data given

Mass of copper bowl = 110 grams

Mass of water = 240 grams

Temperature of water and copper = 21.0 °C

Mass of the hot copper cylinder = 410 grams

8.6 grams being converted to steam

Final temperature = 100 °C

<u>Step 2:</u> Calculate the energy gained by the water:

Q = m(water)*C(water)*ΔT + m(vapor)*Lw

⇒with mass of water = 0.240 kg

⇒ with C(water) = the heat capacity of water = 4184 J/kg°C

⇒ with ΔT = the change in temperature = T2 - T1 = 100 °C - 21.0 = 79°C

⇒ with mass of vapor = 8.60 grams = 0.0086 kg

⇒ with Lw = The latent heat of vaporization (water to steam) = 22.6 *10^5 J/kg

Q = 0.24kg * 4184 J/kg°C *79°C + 0.0086 kg*22.6*10^5 J/kg

Q = 79328.64 + 19436 = 98764.64 J = 98.76 kJ

There is 98.76 kJ energy transfered to the water as heat.

4 0
3 years ago
Other questions:
  • Define the term ionization energy. Choose one:
    11·1 answer
  • Distilled water has a hydronium ion concentration of 1 × 10–7 M. What is the pH of distilled water?
    12·1 answer
  • Which of the following solutes has the greatest effect on the colligative properties for a given mass of pure water? Explain.
    8·1 answer
  • Which statement best describes what a circle graph shows?
    10·2 answers
  • Which type of chemical reaction occurs in Ca + Cl2 -&gt;CaCl2?
    10·2 answers
  • What is a cold front
    5·2 answers
  • se tienen 10 litros de nitrogeno gaseoso bajo una presion de 560 mm Hg. Determina el volumen del nitrogeno a una presion de 760
    13·1 answer
  • Which best explains how photosynthesis is helpful to humans?​
    5·1 answer
  • Look at this graph:
    9·1 answer
  • The partial pressure of argon gas, making up 40% of a mixture is 325 torr. What is the total pressure of the mixture in kPa?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!