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
Jobisdone [24]
2 years ago
8

Cómo se puede comprobar el efecto universo​

Chemistry
2 answers:
ch4aika [34]2 years ago
7 0

Answer:

???! huhhhjhhh no I speak English

Explanation:

?

WARRIOR [948]2 years ago
4 0

Answer:

vifucivud UKvi uiiijhhh

You might be interested in
What is the total number of atoms in this formula?<br> NaHCO3
Pavel [41]
6 - one sodium atom, 1 hydrogen atom, 1 carbon atom, and 3 oxygen atoms.


7 0
3 years ago
How many moles are in 20 grams of Ar?​
pashok25 [27]

Answer:

moles Ar in 20g = 0.500 mole Ar

Explanation:

moles = grams given / formula weight = 20g / 39.948g·mol⁻¹ = 0.500 mole Ar

7 0
2 years ago
1. Lab Investigator: Chemical Reactions cannot be used for
Elina [12.6K]

1: viewing any chemical reaction in a laboratory

2: dangerous to look at when it burns & used in photography, fireworks, and flares

3: the product

3 0
2 years ago
Read 2 more answers
if you are told to get 100 mL of stock solution to use to prepare smaller size sample for an experiment, which piece of glasswar
fgiga [73]

Answer:

A beaker  

Step-by-step explanation:

Specifically, I would use a 250 mL graduated beaker.

A beaker is appropriate to measure 100 mL of stock solution, because it's easy to pour into itscwide mouth from a large stock bottle.

You don't need precisely 100 mL solution.

If the beaker is graduated, you can easily measure 100 mL of the stock solution.

Even if it isn't graduated, 100 mL is just under half the volume of the beaker, and that should be good enough for your purposes (you will be using more precise measuring tools during the experiment).

6 0
2 years ago
What is the formula of the ionic compound composed of element X^2+ and element Y^-3?​
mihalych1998 [28]

Answer: X3Y2

Explanation:

The formula is

X has a valency of 2

Y has a valency of 3

So, we interchange the valencies

Therefore, the formula is

X3Y2

3 0
3 years ago
Other questions:
  • For a particular reaction, Δ H = 120.5 kJ / mol and Δ S = 758.2 J / ( mol⋅K). Calculate Δ G for this reaction at 298 K. Δ G = kJ
    10·1 answer
  • What is made up of usable amounts of metallic elements
    11·2 answers
  • Calculate OH- given H3 O+ = 1.40 *10^-4 M
    8·1 answer
  • Draw the products of the acid-base reaction between stearic acid and OH-
    6·1 answer
  • Chlorine has two isotopes. Chlorine-35 has an actual mass of 34.9689 u and chlorine-37 has a mass of 36.9659 u. In any sample of
    11·1 answer
  • Can you balance the following oxidation-reduction reaction and indicate which atoms have undergone oxidation and reduction? ____
    15·2 answers
  • What solutes are soluble in water?
    11·1 answer
  • Estado de oxidación de doro​
    13·1 answer
  • Heat being transferred from a hot pan to our food while cooking is an example of... *
    5·1 answer
  • Write a chemical equation of Dr. Jeff’s demonstration using a battery to light steel wool on fire. The battery is used to allow
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!