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
Xelga [282]
3 years ago
15

The mass of an object is 205 gram while the volume was measured to be 82.5 mL. What is this object's density?

Chemistry
1 answer:
aniked [119]3 years ago
5 0

2.48 g/mL

Density = mass/volume = (205 g)/(82.5 mL) = 2.48 g/mL

You might be interested in
What most likely happens during this reaction
Bad White [126]

Answer:

I think that it is A I am sorry if I am wrong

Explanation:

8 0
2 years ago
What evidence supports a conservation law?
Murljashka [212]

Answer:

A- Energy from sunlight becomes glucose during photosynthesis

Explanation:

The law of conservational photosynthetic energy states that atoms cannot be created nor destroyed; the atoms can only be rearranged into new molecules and ions. This implies that the enzymes in photosynthesis are aided by energy to transform into glucose, which the plant needs.

5 0
2 years ago
Read 2 more answers
Which two periods have the same number of elements ​
Stels [109]

Answer:

4 & 5 have the same number of elements

7 0
3 years ago
Read 2 more answers
A first order reaction has a rate constant of 0. 543 at 25°C. Given that the activation energy is 75. 9 kj/mol. Calculate the ra
Rasek [7]

The rate constant of first order reaction at 32. 3 °C is 0.343 /s must be less the 0. 543 at 25°C.

First-order reactions are very commonplace. we have already encountered  examples of first-order reactions: the hydrolysis of aspirin and the reaction of t-butyl bromide with water to present t-butanol. every other reaction that famous obvious first-order kinetics is the hydrolysis of the anticancer drug cisplatin.

The value of ok suggests the equilibrium ratio of products to reactants. In an equilibrium combination both reactants and merchandise co-exist. big ok > 1 merchandise are k = 1 neither reactants nor products are desired.

Rate constant K₁  = 0. 543 /s

T₁  = 25°C

Activation energy Eₐ =  75. 9 k j/mol.

T₂ = 32. 3 °C.

K₂ =?

formula;

log K₂/K₁=  Eₐ /2.303 R [1/T₁ - 1/T₂]

putting the value in the equation  

K₂ = 0.343 /s

Hence, The rate constant of first order reaction at 32. 3 °C is 0.343 /s

The specific rate steady is the proportionality consistent touching on the fee of the reaction to the concentrations of reactants. The fee law and the specific charge consistent for any chemical reaction should be determined experimentally. The cost of the charge steady is temperature established.

Learn more about activation energy here:- brainly.com/question/26724488

#SPJ4

4 0
1 year ago
Write balanced complete ionic equation for hcl(aq)+lioh(aq)→h2o(l)+licl(aq) express your answer as a chemical equation. identify
Svet_ta [14]

Explanation:

An equation is said to be balanced when the number of atoms on both reactant and product side are equal in number.

Whereas an equation where electrolytes in an aqueous solution are represented as dissociated ions is known as an ionic equation.

For example, HCl(aq) + LiOH(aq) \rightarrow H_{2}O(l) + LiCl(aq) can be represented in ionic form as follows.

   H^{+} + Cl^{-} + Li^{+} + OH^{-} \rightarrow H_{2}O(l) + Li^{+} + Cl^{-}

Now, cancelling the common ions present on both sides of the equation. The resulting, ionic equation will be as follows.

                 H^{+} + OH^{-} \rightarrow H_{2}O(l)

8 0
3 years ago
Read 2 more answers
Other questions:
  • What causes gas particles to collide with the walls of their containers?
    9·1 answer
  • How a convection current can enable a hawk or eagle to soar upward without flapping its wing 
    14·2 answers
  • Notes:
    14·1 answer
  • If a reaction is reversible what are the relative amounts of reactant and product
    10·2 answers
  • If you have 45.6mL of a liquid and its
    9·1 answer
  • Is radium usually considered as part of the alkaline earth category in terms of chemistry?
    9·1 answer
  • Which coefficients correctly balance the formula equation below? NH 4 NO 2 (s) N 2 (g)+H 2 O(l) A. 1, 2, 2 C. B. 2, 1, 2 D. 1, 2
    7·1 answer
  • Americans drink 5,604,000 gallons of sweet tea each day. How many liters is
    12·1 answer
  • ara h 6 complements ara h 2 as an important marker for ige reactivity to peanut audrey e. koid,† martin d. chapman,†
    10·1 answer
  • Two molecules of mercury oxide decompose into 2 molecules of mercury and 1 molecule of oxygen gas. Which of the following
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!