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
motikmotik
3 years ago
8

What are things that we use that are made of the elements on the periodic table

Chemistry
1 answer:
mylen [45]3 years ago
6 0

Answer:

all matter (everything) is made of the elements on the periodic table

Explanation:

You might be interested in
Say I grab a bunch of aluminum foil (9.5g) and ball it up. Aluminum has a specific heat of .9J/g*C. How much would the aluminum’
Brrunno [24]

Answer:

ΔT = 0.78 °C

Explanation:

Given data:

Mass of Al = 9.5 g

Specific heat capacity of Al = 0.9 J/g.°C

Temperature change = ?

Heat added = 67 J

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

67 J = 9.5 g × 0.9 j/g.°C × ΔT

67 J = 85.5 j/°C × ΔT

ΔT = 67 J  /  85.5 j/°C

ΔT = 0.78 °C

7 0
3 years ago
Do your body cells always use cellular respiration to break down<br> glucose? Explain your answer.
Goryan [66]

Answer:

Yes cellular respiration is the only way to break down glucose.  Cellular respiration takes place by the cell using oxygen to break down glucose.  

7 0
3 years ago
If an equal number of moles of reactants are used, do the following equilibrium mixtures contain primarily reactants or products
puteri [66]

<u>Answer:</u>

<u>For a:</u> The equilibrium mixture contains primarily reactants.

<u>For b:</u> The equilibrium mixture contains primarily products.

<u>Explanation:</u>

There are 3 conditions:

  • When K_{eq}>1; the reaction is product favored.
  • When K_{eq}; the reaction is reactant favored.
  • When K_{e}=1; the reaction is in equilibrium.

For the given chemical reactions:

  • <u>For a:</u>

The chemical equation follows:

HCN(aq.)+H_2O(l)\rightleftharpoons CN^-(aq.)+H_3O^+(aq.);K_{eq}=6.2\times 10^{-10}

The expression of K_{eq} for above reaction follows:

K_{eq}=\frac{[CN^-][H_3O^+]}{[HCN][H_2O]}=6.2\times 10^{-10}

As, K_{eq}, the reaction will be favored on the reactant side.

Hence, the equilibrium mixture contains primarily reactants.

  • <u>For b:</u>

The chemical equation follows:

H_2(g)+Cl_2(g)\rightleftharpoons 2HCl(g);K_{eq}=2.51\times 10^{4}

The expression of K_{eq} for above reaction follows:

K_{eq}=\frac{[HCl]^2}{[H_2][Cl_2]}=2.51\times 10^{4}

As, K_{eq}>1, the reaction will be favored on the product side.

Hence, the equilibrium mixture contains primarily products.

4 0
3 years ago
Juan ran 0.5 kilometers and Maria ran 600 meters. Who ran farther?
Setler79 [48]
0,5 kilometers = 500 metres
500<600
Maria ran farther
8 0
3 years ago
2 1.1.4 Quiz: Amplitude, Frequency, and Speed
sammy [17]
The answer is C
Sbbsshhshsgssh
8 0
3 years ago
Other questions:
  • What is wrong with the notation 1s22s22p63s23p63d104s24p2 for germanium (atomic number 32)?
    9·1 answer
  • Why doesn't potassium fluoride conduct electricity as a solid?
    8·1 answer
  • Suppose you combine two substances but no chemical reaction occurs. Which of the following best describes the result?
    15·1 answer
  • 4.65 L of nitrogen at standard pressure is compressed into a 0.480 L container. What is the new pressure in kPa?
    12·1 answer
  • PLEASEE ANSWERRR FASTTT
    11·2 answers
  • The isotope of an unknown element, X, has a mass number of 79. The most stable ion of this isotope has 36 electrons and has a 22
    5·1 answer
  • What property of a wave is measuered by f
    8·1 answer
  • John Dalton performed an experiment showing that combining 40 grams of oxygen with 30 grams of carbon will form 70g carbon monox
    13·1 answer
  • Identify which of the following statements about the isotopes of an element is correct.
    10·1 answer
  • Are two atoms of the same element identical
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!