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
jeyben [28]
3 years ago
11

HELP SCIENCE! I PUT MATH N DIDNT MEAN TO

Mathematics
2 answers:
Ganezh [65]3 years ago
6 0
B) 4Na + O₂ → 2Na₂O
b) H₂ + Cl₂ ---> 2HCi
vivado [14]3 years ago
5 0
the first question b is balanced
the second question b is balanced but it is 2HCl not 2HCi ;-)
You might be interested in
Which number sentence shows the correct placement of the decimal point in the product based on the two factors A: 3.48 x 42.37 =
Rzqust [24]

Answer:

A

Step-by-step explanation:

Add the number of decimal places of the two numbers being multiplied to know the number of decimal places of the product.

A: 3.48 x 42.37 = 147.4476

2 decimal places + 2 decimal places = 4 decimal places

Only choice A is correct.

3 0
3 years ago
As a nurse, part of your daily duties is to mix medications in the proper proportions for your patients. For one of your regular
spayn [35]

Answer:

10 milligrams of Medication A

Step-by-step explanation:

We'll write proportions/ratios for this:

20:16 is the usual proportion, and x:8 is this week's dose. The ratio from A to B has to be equal, so

20/16 = x/8

Cross-multiply:

(20)(8) = (16)(x)

160 = 16x

divide both sides by 16

x = 10

Please let me know if you have questions about this answer.

5 0
3 years ago
Ms Durham buys a metre of fabric. She cuts off 30) cm. The amount of fabric left in<br> cm is?
oksian1 [2.3K]
70 cm

ex:
100 cm in a meter
so you’d do 100-30 cm
and that equals 70 centimeters
6 0
3 years ago
Find the sum of the arithmetic series in which a1 = –68, d = –3, and n = 20.
harkovskaia [24]

Step-by-step explanation:

Sum of 20 terms in thr arithmetic sequence adds up to -1930

6 0
2 years ago
If K is the midpoint of JL, JK=9x-1 and KL=2x+27, find JL.
ratelena [41]

Answer:

The answer is B. 70

Step-by-step explanation:

First, since K is the midpoint of line segment JL, JK must equal KL.

So, set 9x-1 = 2x+27 and solve.

7x=28 so x=4

Then, since they are asking for JL, using x=4, add together JK and KL.

So, 9x-1+2x+27 = 11x+26 = 11(4) + 26 = 44+26 = 70

3 0
3 years ago
Other questions:
  • In the diagram shown, line m is parallel to line n . Justine says that ∠3 ∠ 3 and ∠7 ∠ 7 are supplementary angles. Is she correc
    9·1 answer
  • What is the value of 7x-2x+3,when x=2
    15·2 answers
  • Help!!!!!!!!!!!!!!!!!!!!
    10·2 answers
  • A spider has 8 legs. An ant has 6 legs. There are a group of spiders and a group of ants. The groups have equal numbers of legs.
    6·1 answer
  • Kieran’s wallet contains 7 bills: three $5 bills, two $10 bills, one $20 bill, and one $100 bill. If Kieran pulls out two bills
    8·2 answers
  • If 40 is increased to 56 what is the percent of change<br>​
    15·2 answers
  • 2. Write the algebraic phrases that correspond to the following word phrases: (a) The sum of four times the opposite of a number
    14·1 answer
  • When dealing with word problems and linear equations, what does the y-intercept represent and how is the slope defined?
    11·2 answers
  • AB=<br> Round your answer to the nearest hundredth
    14·1 answer
  • Simon wants to buy some flowers He goes into a flower shop and buys 7 daffodils and 6 daisies Simon wants to know the cost of da
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!