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
ipn [44]
3 years ago
13

What scientist determined that atomic mass did not determine the pattern of the periodic table? A. James Watson B. Henry Moseley

C. Rosalind Franklin D. Dmitri Mendeleev
Chemistry
1 answer:
marta [7]3 years ago
5 0
The answer is B. Henry Moseley
You might be interested in
If you have a pitcher of lemonade and the recipe calls for 2 lemons and you decided to use 4, would this be considered diluted o
pantera1 [17]

Answer: This would be considered concentrated because if you're upping the recipe on your own accord, it would be way more sour, causing the lemonade to be more concentrated. It would be diluted if you added less than 2 lemons.

7 0
3 years ago
Which term names enzymes in the body that speed up chemical reactions?
Viefleur [7K]

Answer:

Catalyst speeds up the chemical reactions. Catalyst is the compound that adds to the chemical reaction so that it happen more quickly. Catalyst without being consumed in the reaction accelerates the reaction. It lowers down the activation energy of the transition state and thus accelerates the reaction.

Hope this helped!

Plz mark me as Brainliest!

7 0
2 years ago
Read 2 more answers
What metalloid has commonly been used as an insecticide due<br> to its effectiveness as a poison.
Taya2010 [7]

Answer:

Arsenic.

Explanation:

Hello there!

In this case, since insecticides are substances that act as poisons to get rid of insects in order to prevent their presence and/or reproduction in houses, companies, crops and others, a substance that has been widely used is the metalloid arsenic due to its direct affection of the insect's body (movement, performance, cellular functions).

In addition, high levels of arsenic in food could cause arsenic poisoning in humans as well, that is why such practice must be properly performed and by using the correct security protocol.

Best regards!

5 0
3 years ago
What is formula mass of glucose C2H12O6
Delvig [45]
Glucose has empirical formula C6H12O6. So its formula mass can be calculated from that: 12.01x6 + 1.008x12 + 16.00x6 = 72.06 + 12.096 + 96.00 = 180.156 which needs to be rounded to two decimals to get 180.16 g/mole<span>.</span>
3 0
3 years ago
true or false in a chemical reaction the same number of each type of atom will always be present before and after the reaction t
iren [92.7K]

Answer:

True

Explanation:

True because of the law of conservation of mass, the same same amount of atoms will be on both sides of the reaction.

6 0
2 years ago
Other questions:
  • A dark grey rock has a mass of 80 grams. When dropped in water, it makes the water level rise from 70 mL to 90 mL. What is the d
    6·2 answers
  • What is the theoretical Van’t Hoff factor for the following substances: HCL &amp; ethanol (CH3CH2OH)
    15·1 answer
  • Prior to the Industrial Revolution, the majority of the population in England consisted of the light colored variation. The dark
    6·1 answer
  • Identify the type of solid for FeF3
    9·1 answer
  • Consider the scenario.
    5·1 answer
  • It contains only one type of molecule or<br> extended structure.
    12·1 answer
  • Sodium chloride (table salt,) whose formula is NaCl: <br> Ionic <br> Covalent
    12·2 answers
  • Write the balanced net ionic equation, including the phases, for the given reaction. A solution of Ba ( OH ) 2 and a solution of
    10·1 answer
  • The acetoacetic ester synthesis is a method for preparing methyl ketones from alkyl halides.
    12·1 answer
  • Hydrogen sulfide gas reacts with oxygen to produce sulfur dioxide gas and water according to the balance equation:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!