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
Bess [88]
2 years ago
9

(only reply if you know the answer or get reported) Please solve this ty​

Chemistry
1 answer:
kolezko [41]2 years ago
4 0

Answer:

7) 50 8)4

Explanation:

I answered the question what do you want to gave me

You might be interested in
The mass of a 50-mL volumetric flask is 40.638 g. After adding 15.0 mL of 95% ethanol and adding enough water to complete the vo
Nuetrik [128]

Answer

0.9516 grams / mL (50.00 has 4 sig digs.)

Remark

You have a couple of extraneous numbers there. You don't care about anything except the mass of the flask +  water/alcohol mixture  (88.219 grams). and the mass of the flask (40.638 grams)

Formulas

  • mass water/alcohol mixture = mass of the flask with fluid - mass flask
  • density = mass / volume

Solution

mass water/alcohol mixture = 88.219 - 40.638 = 47.581

  • Volume = 50 mL
  • Density = mass / Volume
  • Density = 47.581/50
  • Density = 0.95162  There are 4 sig digs so the answer should be
  • 0.9516
3 0
3 years ago
What types of emergency situations could rescue workers be in that would make it difficult for them to get energy to their elect
artcher [175]

Answer:

Large-scale natural disasters

Explanation:

The emergency situation that rescue workers could be in that would make it difficult for them to get energy to their electrical devices is "Large-scale natural disasters"

Large-scale natural disasters are very destructive and devastating. Their impact and effect can range from destruction of infrastructures, properties, social amenities and even ecosystems. When such disasters break out, they destroy things and which leads to difficulty in accessing certain amenities. Rescue workers even find it difficult to access energy for their electrical devices - because there is power outage.

Some of these large-scale natural disasters are earthquakes, tornadoes, hurricanes, floods, etc.

4 0
3 years ago
How many protons, neutrons, and electrons make up an ion of
yKpoI14uk [10]

Answer:

protons=15

electron=15

neutron=16

6 0
2 years ago
How many liters of 1.75 M solution could be made using 35 grams of NaCl?
dolphi86 [110]
Data:
M (molarity) = 1.75 M (mol/L)
m (mass) = 35 g
MM (molar Mass) of NaCl = 58.44 g/mol
V (volume) = ? (in liters)

Formula:
M =  \frac{m}{MM*V}

Solving:
M = \frac{m}{MM*V}
1.75 =  \frac{35}{58.44*V}
1.75*58.44V = 35
102.27V = 35
V =  \frac{35}{102.27}
\boxed{\boxed{V \approx 0.34\:L}}\end{array}}\qquad\quad\checkmark
3 0
3 years ago
What is the formula unit for a compound made from Fe3+ and oxygen?
Alexeev081 [22]
Fe2O3 because O has a -2 charge and Fe and +3, you want the charges to equal each other so if you have 2 Fe with +3 charge the charge becomes 6 if you have 3 O with -2 charge the charge becomes 6.
6 0
3 years ago
Read 2 more answers
Other questions:
  • If 3.8 moles of zinc metal react with 6.5 moles of silver nitrate, how many moles of silver metal can be formed, and how many mo
    7·1 answer
  • What is true about two neutral atoms of the element gold
    6·1 answer
  • An (blank) determines what will be tested in a scientific experiment
    5·1 answer
  • Plz help me I Am timed plz
    12·1 answer
  • Beth has two unlabeled balloons, one filled with hydrogen gas and the second filled with neon gas. She researches and writes dow
    9·1 answer
  • HELP ASAP I WILL GIVE BRAINLYIST
    11·2 answers
  • Which element is the most<br> reactive element in group one of the periodic<br> table
    12·1 answer
  • The system containing all the muscles of the body especially those involved in movement CONSIST of the three types of muscle ske
    13·1 answer
  • How can the actions of people affect runoff and absorption in a positive way? How do they affect them in a negative way?
    9·1 answer
  • Question 18 of 32
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!