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
Marianna [84]
3 years ago
11

Not really good at rounding lol please help ASAP !!!!!

Chemistry
1 answer:
stepan [7]3 years ago
7 0
We need to round to the ones place (which is a 7). We look to the digit to the right of the 7 and it is a number 5 or bigger (6), so we round the 7 up one to 8.
498 g
You might be interested in
Fill in the coefficients that will balance the following reaction:<br> __C₂H₂+__O2–&gt;__CO2 +__H2O
lord [1]

Explanation:

C3H8 + 5O2 -> 3CO2 + 4H2O

C2H2 + 2.5O2 -> 2CO2 + H2O

5 0
3 years ago
Why does the nitrogen concentration decrease after hydrogen is added? n2(g)+3h2(g)⇌2nh3(g) why does the nitrogen concentration d
Leno4ka [110]

<span>The chemical reaction of a reversible reaction is actually governed by Le Chatelier’s principle. It states that when more reactants are introduced into the system, the reaction will proceed forward to create more products. So since Hydrogen is a reactant and Nitrogen is also reactant so adding more Hydrogen makes more products hence reducing the Nitrogen concentration.</span>

3 0
3 years ago
Which is the reason that ionic compounds are brittle? The bonds between the anions and cations are weak and therefore easily bro
bearhunter [10]
Well ionic compounds are brittle because similar charges repel, which causes them to break usually occurring when a force is applied, like a hammer strike. 
8 1
3 years ago
What is the majority of the atom composed of *TWO WORD ANSWER* ANSWER ASAP WILL AWARD BRAINLIEST! SCAM ANSWERS WILL BE REPORTED
Olin [163]

Answer:

Most of the atom is empty space. The rest consists of a positively charged nucleus of protons and neutrons surrounded by a cloud of negatively charged electrons. The nucleus is small and dense compared with the electrons, which are the lightest charged particles in nature..

Explanation:

Hope it helps you..

Y-your welcome in advance..

(;ŏ﹏ŏ)(ㆁωㆁ)

6 0
3 years ago
Calculate the volume of a sample of aluminum that has a mass of 3.057 kg. The density of aluminum is 2.70 g/cm3 (taking into con
Misha Larkins [42]

Answer:

v = 1130 cm³

Explanation:

Given data:

Volume of sample = ?

Mass of Al sample = 3.057 Kg (3.057 Kg× 1000g/1 Kg = 3057g)

Density of Al sample = 2.70 g/cm³

Solution:

Formula:

d = m/v

d = density

m = mass

v= volume

by putting values

2.70 g/cm³ = 3057g /v

v = 3057g /2.70 g/cm³

v = 1130 cm³

3 0
3 years ago
Other questions:
  • One type of detector used in gas chromatography is a thermal conductivity detector (tcd). what two elements commonly make up the
    12·1 answer
  • Glucose dissolves in water but doesn't produce ions during dissolution process. Two (positive and negative) electrodes that were
    9·1 answer
  • In most Acid-base reactions , what type of bond (ionic or covalent) is formed between the ions of the “salt”?
    13·1 answer
  • The chemical equation for the formation of ammonia is unbalanced. 3H2(g) + N2(g) -----&gt; NH3(g) If three molecules of hydrogen
    5·2 answers
  • Write the complete balanced equation for the following reaction:
    5·1 answer
  • Write a balanced chemical equation for the reaction that occurs when copper (II) hydroxide decomposes into copper (II) oxide and
    14·1 answer
  • Elements are organized in a chart called what?<br><br><br><br> Pls help
    14·2 answers
  • Please help me ill give brainiest to the right answer
    12·2 answers
  • Propane is often used in stoves and cooktops as a source of heat. The combustion of propane yields water and carbon
    7·1 answer
  • Is it possible for cells to overcome the effects of alkylating agents? how?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!