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
anyanavicka [17]
3 years ago
11

How to measure with SI UNIT

Chemistry
1 answer:
nordsb [41]3 years ago
8 0
The SI base units and their physical quantities are the metre for measurement of length, the kilogram for mass, the second for time, the ampere for electric current, the kelvin for temperature, the candela for luminous intensity, and the mole for amount of substance.
You might be interested in
Write the balanced chemical equation between H2SO4H2SO4 and KOHKOH in aqueous solution. This is called a neutralization reaction
const2013 [10]

Answer:

0.185M sulfuric acid

Explanation:

Based on the reaction:

H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O

<em>1 mole of sulfuric acid reacts with 2 moles of KOH</em>

Initial moles of H₂SO₄ and KOH are:

H₂SO₄: 0.750L ₓ (0.470mol / L) = <em>0.3525 moles of H₂SO₄</em>

KOH: 0.700L ₓ (0.240mol / L) = <em>0.168 moles of KOH</em>

The moles of sulfuric acis that react with KOH are:

0.168mol KOH ₓ (1 mole H₂SO₄ / 2 moles KOH) = 0.0840 moles of sulfuric acid.

Thus, moles that remain are:

0.3525moles - 0.0840 moles = <em>0.2685 moles of sulfuric acid remains</em>

As total volume is 0.700L + 0.750L = 1.450L, concentration is:

0.2685mol / 1.450L = <em>0.185M sulfuric acid</em>

8 0
2 years ago
A scientist makes several observations, develops a question, researches what is known about the question, forms a hypothesis, an
Alex73 [517]
The scientist should make a new hypothesis and do a new experiment! That is what I say!
8 0
3 years ago
Your teacher directs you to combine two liquid substances into a flask. after you combine them, you notice that the flask feels
adelina 88 [10]

Answer : The correct option is (A).

Explanation :

  • Endothermic reaction : When two liquids are combine into a flask, then the flask feels cold when we touch it because the system absorbed heat from the surrounding.

In general, endothermic process absorbs heat and cool the surrounding.

  • Exothermic reaction : When two liquids are combine into a flask, then the flask feels hot when we touch it because the system released heat into the surrounding.

In general, exothermic process releases heat and rise the temperature of surrounding.

3 0
3 years ago
Which factor is a characteristic of an acid?
Elina [12.6K]

anything that turns red litmus paper to blue it is an acid and vice versa is true

4 0
3 years ago
Mass weight of original copper rod
jolli1 [7]

Answer:

copper, 8930.

Explanation:

Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. to сuprum (Latin). Coper (Old English) and copper were derived from this, the later spelling first used around 1530.  muscle, and bone. The adult body contains between 1.4 and 2.1 mg of copper per kilogram of body weight.

8 0
2 years ago
Other questions:
  • The volume of 400mL chlorine gas at 400mm Hg is decrease to 200mL at constant tempature. What is the new gas pressure?
    5·1 answer
  • What is the difference between unconfined aquifers and confined aquifers?
    8·1 answer
  • What can be explained by the Arrhenius theory?
    13·1 answer
  • A) 30.22 g NaCl x 1 mol NaC l =      58.4430 Molar mass (g) NaCl=0.5171 mol NaCl
    7·1 answer
  • How many moles are in 2.3 grams of phosphorus? :(
    11·1 answer
  • Which Domains would you find single cell organisms
    10·1 answer
  • How could you increase the potential energy of an apple you were holding?
    15·1 answer
  • What happens when a parking lot is built in a wetlands area?
    11·2 answers
  • Which of the following would happen if Earth's moon were half the size that it is now? O The oceans' tidal variations would be s
    13·1 answer
  • Many people in South America are subsistence farmers. Subsistence farming is...
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!