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
Anestetic [448]
3 years ago
6

Which equation is balanced?

Chemistry
1 answer:
Alenkinab [10]3 years ago
5 0

Answer:

Zn + 2HCl → ZnCl2 + H2

Explanation:

Left

Zn=1

H=2

Cl=2

Right

Zn=1

H=2

Cl=2

You might be interested in
Which of the following causes clouds to form? (1 point)
elena-s [515]
The answer is B, early in the morning water covered areas (lakes,ponds,puddles,etc.) will vaporize a little bit because of the heat from the sun and it will continue all day, vapors rise towards the atmosphere and since it's a lot cooler there it will condense into a cloud which is full of tiny frozen water particles. Hope this helps <span />
6 0
3 years ago
Read 2 more answers
I will give brainliest (8th grade)
lesya [120]

Answer:

2.The cooling effects of more indirect sunlight cause autumn and winter. Because of the Earth's approximately 23.5º tilt, the seasons in the Northern and Southern Hemispheres are reversed, about six months apart from each other.

3.In North America, around June 21, Earth tilts on its axis toward the Sun. That means that at the northern summer solstice, North America will experience summer, and winter will start in in the Southern Hemisphere. Winter Solstice. Around December 21, the Northern Hemisphere tilts the farthest away from the Sun.

Explanation:

3 0
3 years ago
A fossil was analyzed and determined to have a carbon-14 level that is 70 % that of living organisms. The half-life of C-14 is 5
Citrus2011 [14]

Answer: 2948

Explanation:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.69}{t_{\frac{1}{2}}}=\frac{0.693}{5730}=1.21\times 10^{-4}years^{-1}

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 1.21\times 10^{-4}years^{-1}

t = age of sample  = ?

a = let initial amount of the reactant  = 100

a - x = amount left after decay process = \frac{70}{100}\times 100=70

t=\frac{2.303}{1.21\times 10^{-4}}\log\frac{100}{70}

t=2948years

Thus the fossil is 2948 years old.

5 0
3 years ago
'Suppose you take 0.0332 kg of ammonium carbonate and dissolve it using 0.0395 kg of water. What would be the mass percent conce
VMariaS [17]

The solution is 45.7 % (NH₄)₂CO₃ by mass.

Mass of solution = 0.0332 kg + 0.0395 kg = 0.0727 kg

% (NH₄)₂CO₃ = Mass of (NH₄)₂CO₃/Total mass × 100 % = 0.0332 kg/0.0727 kg × 100 % = 45.7 %


8 0
4 years ago
An atom with 25 protons and 27 electrons has a charge of +<br><br> True<br><br> False??
sleet_krkn [62]

Answer:

Unless you mistyped the question, the answer should be 25+

6 0
3 years ago
Other questions:
  • What is the pH of a 9.50×10−2 M ammonia solution??
    14·1 answer
  • A 5.00 L sample of a gas at 25.0 °C is expanded under constant pressure to 12.5 L. What is the final temperature of the gas in °
    14·1 answer
  • Forces that act between two molecules are referred to as intermolecular forces true or false
    15·1 answer
  • Which of these acids occurs naturally in the body and performs regularly functions?
    7·1 answer
  • How is diffusion important to animals
    9·1 answer
  • What is the answer?
    12·1 answer
  • Sassaaaaaaaaaaaaaaaaaaaaaaaaaaa
    10·1 answer
  • Which option is not a way that heat can flow? (I think this is Chemistry)
    13·1 answer
  • If you had a sample containing 55 alpha particles, how many protons would be present in that sample? Show all necessary work.
    11·1 answer
  • The actual yield of a product in a reaction was measured as 1.20 g. If the theoretical yield of the product for the reaction is
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!