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deez
Questions (232)
How does a balanced chemical equation demonstrate the Law of Conservation of Mass?
(1 point) a it shows that all compounds remain
1 answer
131 views
How are chemical changes different from physical changes? (1 point)
• Item a They are reversible. b They form new substances. c
1 answer
76 views
A student cuts some fabric into two pieces. is this change prysical or chemical? (1 pot) | item
• It is a chemical change
1 answer
360 views
Why are sodium (Na) and potassium (K) in the same group on the periodic table? (1 point
a They are both hard and brittle. b They
1 answer
92 views
Which element has the same number of valence electrons as bromine (Br)?
(1 point) a potassium (K) b krypton (Kr) c chlorine (CI)
1 answer
115 views
Which element has the same number of valence electrons as bromine (Br)?
(1 point) O potassium (K) O krypton (Kr) O chlorine (CI)
1 answer
134 views
In a molecule of lithium sulfide, there are two atoms of lithium and one atom of sulfur. Which statement about lithium sulfide
1 answer
249 views
Cobalt has a mass number of 59 and an atomic number of 27. A student wants to create a model of a cobalt atom. Which statement
1 answer
73 views
Which discovery would have the greatest impact on reducing the negative consequences of plastic? (1 point)
a the discovery of a
1 answer
151 views
Which discovery would have the greatest impact on reducing the negative consequences of plastic? (1 point)
O the discovery of a
1 answer
150 views
A student states that natural resources could be saved if people made everything they need
Item 1 labs. What is the main problem
1 answer
182 views
1. Identify a few household substances (i.e., soap, water, salt, milk, etc.) that produce a chemical reaction when combined.
1 answer
106 views
what household substances produce a chemical reaction when combined
1 answer
80 views
It is sometimes challenging for me to make inferences and support them with textual evidence because
1 answer
81 views
feel confident about my ability to determine the central ideas in an informative/explanatory topic because
1 answer
92 views
Chemical reactions occur all around us and can be observed with the naked eye.
Within this section, Matter and Its Interactions
1 answer
278 views
use the additive inverse to fine -24 4/5 - 6 7/10
1 answer
67 views
use the additive inverse to fine -24 4/5 - -6 7/10
1 answer
66 views
use the additive inverse to find -123.45 - (-234.76)
1 answer
110 views
The water level of a river is below normal levels. Its water level is at 1 1/2
meters below sea level. During the summer, the
5 answers
133 views
what is a variable sentence
1 answer
99 views
what is a variable sentence pattern
1 answer
111 views
A basket of fruits contains 5 bananas, 8 mangoes, and 7 apples. Two fruits are randomly selected without replacement. Calculate
1 answer
156 views
Which set of events is dependent?(1 point)
Responses choosing a ball from a bag and then choosing another ball without replacing
1 answer
209 views
4.2 fewer than the product of 12 and a number
0 answers
112 views
Write two numbers that multiply to the value on top and add to the value on bottom -30 1
1 answer
633 views
Not necessarily a question but, more answers.
[Relate Genotypes and Phenotypes Quick Check] 1.) How do the terms genotype and
9 answers
2,248 views
Which description defines a claim?
a fact that supports an idea a statement that explains a point of view an opinion based on
34 answers
14,287 views
A steel plate has the form of one-fourth of a circle with a radius of 54 centimeters. Two two-centimeter holes are drilled in
0 answers
494 views
What is the radius of the largest circular quilt that can be made with an area less than or equal to 70 ft 2? Round your answer
1 answer
378 views
I need a acrostic poem on photosynthesis
1 answer
997 views
Janice earns a 4 percent commission for the medical equipment that she sells. If she earned $1,823.94 in commission on the
4 answers
2,906 views
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